Consulta: subjectFacets:"Digestion"
Registros recuperados: 47
Data/hora: 06/06/2024 03:46:48

Etude histoensymologique de la digestion chez Ruditapes philippinarum
Provedor de dados: 5
Autores: Hily, A.
Examinations of alimentary tract and digestive tubules after feeding give evidence of continuous digestive process in juveniles of Ruditapes philippinarum . Histoenzymologic study of digestive tract suggests important intracellular enzymatic activities in stomacal epithelium, digestive gland and intestinal cells. Main part of intracellular digestion occurred in digestive cells by lysosyme associated with vacuolar system.
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Bivalvia; Digestive system; Enzymatic activity; Histology; Digestive glands; Digestion; Enzymes digestives; Digestion; Bivalve.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1180.pdf

Dynamique et enzymologie de la digestion chez l'huitre Crassostrea gigas
Provedor de dados: 5
Autores: Boucaud, C; Lebesnerais, C; Lubet, P; Lihrmann, I.
Feeding experiments carried out on Crassostrea gigas allowed the authors to set up the stages and the timing of the movement of food throughout the digestive tract. Various activities involved in digestion (glycosidases, esterases, and peptidases) were investigated histochemically in the digestive tract in order to localize the sites of absorption and the sites of protein and carbohydrate digestion. An explicative model of the different stages of digestion is proposed.
Tipo: Text
Palavras-chave: Crassostrea gigas; Bivalvia; Cytology; Histochemistry; Histology; Digestive system; Enzymatic activity; Digestive glands; Digestion; Enzymes; Transit digestif; Digestion; Huitre; Crassostrea gigas.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1179.pdf

Molecular Ontogeny of First-Feeding European Eel Larvae
Provedor de dados: 5
Autores: Politis, Sebastian Nikitas; Sorensen, Sune R.; Mazurais, David; Servili, Arianna; Zambonino-infante, Jose-luis; Miest, Joanna J.; Clemmesen, Catriona M.; Tomkiewicz, Jonna; Butts, Ian A. E.
Digestive system functionality of fish larvae relies on the onset of genetically pre-programmed and extrinsically influenced digestive functions. This study explored how algal supplementation (green-water) until 14 days post hatch (dph) and the ingestion of food [enriched rotifer (Brachionus plicatilis) paste] from 15 dph onward affects molecular maturation and functionality of European eel larval ingestion and digestion mechanisms. For this, we linked larval biometrics to expression of genes relating to appetite [ghrelin (ghrl), cholecystokinin (cck)], food intake [proopiomelanocortin (pomc)], digestion [trypsin (try), triglyceride lipase (tgl), amylase (amyl)], energy metabolism [ATP synthase F0 subunit 6 (atp6), cytochrome-c-oxidase 1 (cox1)], growth...
Tipo: Text
Palavras-chave: Anguilla anguilla; Ingestion; Digestion; Gene expression; RNA/DNA; Aquaculture.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00463/57445/59550.pdf

Chronic dietary exposure to pyrolytic and petrogenic mixtures of PAHs causes physiological disruption in zebrafish - part I: Survival and growth
Provedor de dados: 5
Autores: Vignet, Caroline; Le Menach, Karyn; Mazurais, David; Lucas, Julie; Perrichon, Prescilla; Le Bihanic, Florane; Devier, Marie-hélène; Lyphout, Laura; Frere, Laura; Begout, Marie-laure; Zambonino-infante, Jose Luis; Budzinski, Helene; Cousin, Xavier.
The release of polycyclic aromatic hydrocarbons (PAHs) into the environment has increased very substantially over the last decades leading to high concentrations in sediments of contaminated areas. To evaluate the consequences of long-term chronic exposure to PAHs, zebrafish were exposed, from their first meal at 5 days post fertilisation until they became reproducing adults, to diets spiked with three PAH fractions at three environmentally relevant concentrations with the medium concentration being in the range of 4.6–6.7 μg g−1 for total quantified PAHs including the 16 US-EPA indicator PAHs and alkylated derivatives. The fractions used were representative of PAHs of pyrolytic (PY) origin or of two different oils of differing compositions, a heavy fuel...
Tipo: Text
Palavras-chave: Danio rerio; Life cycle; Polycyclic aromatic hydrocarbon; Heavy oil; Light crude oil; Alkylated PAH; Jaw; Digestion.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00188/29907/28490.pdf

Dietary neutral lipid level and source in marine fish larvae: Effects on digestive physiology and food intake
Provedor de dados: 5
Autores: Morais, Sofia; Conceicao, L; Ronnestad, I; Koven, W; Cahu, Chantal; Zambonino, Jose-luis; Dinis, M.
A growth depressing effect of high dietary neutral lipid levels in marine fish larvae has been reported. This may be a result of a decrease in the efficiency or activity of digestive enzymes, a reduction in absorption efficiency and/or a decrease in food intake. The present work reviews recent studies carried out on commercially valuable species (Atlantic herring, Senegalese sole, European seabass and gilthead seabream) that investigated the effects of neutral lipid level and lipid source (fatty acid composition) on some of these key factors influencing larval growth. The results seem to collectively indicate that lipid transport from the enterocytes into the body may be more problematic in larval stages dealing with high neutral lipid diets than lipolytic...
Tipo: Text
Palavras-chave: Ingestion; Lipid droplets; Digestion; Absorption; Fatty acid composition; Lipid quantity.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3029.pdf

Reduced lipid intake leads to changes in digestive enzymes in the intestine but has minor effect on key enzymes of hepatic intermediary metabolism in rainbow trout (Oncorhynchus mykiss)
Provedor de dados: 5
Autores: Ducasse Cabanot, S; Zambonino, Jose-luis; Richard, N; Medale, Francoise; Corraze, Genevieve; Mambrini, M; Robin, Jean; Cahu, Chantal; Kaushik, Sadasivam; Panserat, S.
For sustainable aquaculture, the removal of marine resource ingredients in fish diets is an important objective. While most studies focus on the replacement of fish oil by vegetable oil, little is known on the nutritional effects of presence (which corresponds to the control diet) or absence of dietary fish oil. We studied fatty acid composition of brush-border membranes and digestive enzyme activities of the intestine and measured the expression and activities of several enzymes involved in the hepatic intermediary metabolism of rainbow trout (Oncorhynchus mykiss) fed for 7 weeks with or without fish oil. The diets were pair-fed to ensure that fish fed either diet had comparable carbohydrate and protein intakes. Absence of fish oil significantly reduced...
Tipo: Text
Palavras-chave: Rainbow trout; Metabolism; Fish oil; Digestion; Aquaculture.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3506.pdf

Microplastics in seafood: Benchmark protocol for their extraction and characterization
Provedor de dados: 5
Autores: Dehaut, Alexandre; Cassone, Anne-laure; Frere, Laura; Hermabessiere, Ludovic; Himber, Charlotte; Rinnert, Emmanuel; Riviere, Gilles; Lambert, Christophe; Soudant, Philippe; Huvet, Arnaud; Duflos, Guillaume; Paul-pont, Ika.
Pollution of the oceans by microplastics (&lt;5 mm) represents a major environmental problem. To date, a limited number of studies have investigated the level of contamination of marine organisms collected in situ. For extraction and characterization of microplastics in biological samples, the crucial step is the identification of solvent(s) or chemical(s) that efficiently dissolve organic matter without degrading plastic polymers for their identification in a time and cost effective way. Most published papers, as well as OSPAR recommendations for the development of a common monitoring protocol for plastic particles in fish and shellfish at the European level, use protocols containing nitric acid to digest the biological tissues, despite reports of...
Tipo: Text
Palavras-chave: Microplastics; Digestion; Method; Seafood products; Tissue; Plastic integrity.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00335/44582/44469.pdf

Cycles saisonniers, reproduction et qualite des ovocytes chez Pecten maximus en rade de Brest
Provedor de dados: 5
Autores: Paulet, Yves-marie; Bekhadra, Farida; Devauchelle, Nicole; Donval, Anne; Dorange, Germaine.
This work is part of the program, "recruitment determinism in scallops" initiated in 1992 by the "Contrat de Baie". The aim of this research was to explain interannual abundance fluctuations observed for Pecten maximus, in the Bay of Brest. To this end an analytical approach to the life cycle of the species was undertaken to determine its critical phases. A phase may be considered as "critical" if the mortality rate at its level varies from one year to the other. Using data from 1989 to 1994, a precise time-table of the "physiological year" of the scallop in the Bay of Brest was determined. Fecundity and gamete production kinetics were estimated from the annual variation in the weight indices of the gonad. In the laboratory, egg quality was estimated...
Tipo: Text
Palavras-chave: Pecten maximus; Recruitment; Reproductive cycle; Digestion.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00044/15495/12861.pdf

Ontogeny of the gastrointestinal tract of marine fish larvae
Provedor de dados: 5
Autores: Zambonino, Jose-luis; Cahu, Chantal.
Marine fish larvae undergo major morphological and cellular changes during the first month of life. The ontogeny of the gastrointestinal tract combines these two aspects of the larval development and is very interesting in that the timing of functional changes appears genetically hard-wired. The goal of this paper is to give an overview of the gastrointestinal development process in marine fish larvae, with particular attention to three species: sea bass; red drum; and sole, since the description of gut maturation in fish larvae was initiated during the last decade with these species. During the early stages, marine fish larvae exhibit particular digestive features. Concerning the exocrine pancreas, amylase expression decreases with age from the third week...
Tipo: Text
Palavras-chave: Proteins; Pancreatic enzymes; Lipids; Larvae feeds; Intestinal enzymes; Glucides; Fish larvae; Enzyme expression; Digestion; Development; Aquaculture.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-650.pdf

Variations des activites digestives en fonction des facteurs du milieu chez les crustaces
Provedor de dados: 5
Autores: Galgani, Francois; Benyamin, Y; Vanworhmoudt, A; Cecaldi, J.
Proteolytic enzymes of hepatopancreas of six species of peneids (Penaeus kerathurus, P. japonicus, P. monodon, P. stylirostris, P. merguiensis and P. vannamei ) have been studied. Some of their physiological variations have been characterised. Increase in acclimation temperature of crustaceans enhances increase of specific activities of proteases. Variations of salinity does not modify specific activities, nor quantities of trypsin, nor electrophoretic patterns of these different proteases.
Tipo: Text
Palavras-chave: Penaeus kerathurus; Penaeidae; Malacostraca; Diets; Growth; Larval development; Life cycle; Acclimation; Environmental effects; Digestive glands; Enzymatic activity; Salinity effects; Temperature effects; Enzymes; Endocrinology; Digestion; Développement larvaire; Croissance; Cycle d'intermue; Carboxypeptidase A and B; Leucine aminopeptidase; Chymotrypsin; Trypsine; Enzymes digestives; Homarus ganmarus; Palaemon serratus; P. vannamei; P. merguiensis; P. stylirostris; P. monodon; P. japonicus; Penaeus keratkurus.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/acte-1195.pdf

Gene expression pattern of digestive and antioxidant enzymes during the larval development of reared Atlantic bluefin tuna (ABFT), Thunnus thynnus L.
Provedor de dados: 5
Autores: Mazurais, David; Coves, Denis; Papandroulakis, Nikos; Ortega, Aurelio; Desbruyeres, Elisabeth; Huelvan, Christine; Le Gall, Marie-madeleine; De La Gandara, Fernando; Cahu, Chantal.
The aim of this study was to determine whether mortality observed during the larval development of reared bluefin tuna (Thunnus thynnus) could be related to improper expression profiles of key genes involved in digestive or antioxidant response capabilities. Tuna larvae were sampled at hatching, 2, 5, 10, 15 and 20 dph (days post hatching) for the relative quantification of transcripts encoded by genes involved in digestive [trypsinogen 1 (TRYP1), alpha-amylase (AMY), aminopeptidase N (ANPEP)] and antioxidant [catalase (CAT)] functions. The levels of expression of ANPEP related to the development and maturation of intestinal function increased from 5 to 20 dph. Furthermore, AMY and TRYP1 genes, which are pancreatic enzymes implicated in carbohydrate and...
Tipo: Text
Palavras-chave: Tuna; Gene; Expression; Development; Digestion; Antioxidant.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00171/28264/26521.pdf

Digestibilité de l'algue Skeletonema costatum par la palourde japonaise Ruditapes philippinarum : éléments d'optimisation appliqués à la vénériculture intensive en marais
Provedor de dados: 5
Autores: Sauriau, Pierre-guy; IFREMER - Laboratoire Ecosystèmes Conchylicoles (LEC) La Tremblade; ECOCEAN - Environnement Littoral &amp; Marin La Rochelle.
Le présent rapport se scinde en trois volets. le premier expose la genèse de l'application à l'aquaculture intensive d'une technique employée en agriculture intensive. Le second volet s'attache à comparer les résultats des calculs de taux de digestibilité acquis, d'une part, in vitro sous des conditions de débit circulant et de type nourriture variables et, d'autre part, in situ par prélèvement des palourdes directement dans le système d'élevage. Enfin le dernier volet contient l'analyse des la distribution spatiales des colonies algales de Skeletonema costatum dans une claire ostréicole expérimentale.
Tipo: Text
Palavras-chave: Vénériculture; Marais; Algue; Skeletonema costatum; Digestion; Ruditapes philippinarum; Bivalvia.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00144/25476/23629.pdf

Paralytic Toxins Accumulation and Tissue Expression of alpha-Amylase and Lipase Genes in the Pacific Oyster Crassostrea gigas Fed with the Neurotoxic Dinoflagellate Alexandrium catenella
Provedor de dados: 5
Autores: Rolland, Jean-luc; Pelletier, Kevin; Masseret, Estelle; Rieuvilleneuve, Fabien; Savar, Veronique; Santini, Adrien; Amzil, Zouher.
The pacific oyster Crassostrea gigas was experimentally exposed to the neurotoxic Alexandrium catenella and a non-producer of PSTs, Alexandrium tamarense (control algae), at concentrations corresponding to those observed during the blooming period. At fixed time intervals, from 0 to 48 h, we determined the clearance rate, the total filtered cells, the composition of the fecal ribbons, the profile of the PSP toxins and the variation of the expression of two a-amylase and triacylglecerol lipase precursor (TLP) genes through semi-quantitative RT-PCR. The results showed a significant decrease of the clearance rate of C. gigas fed with both Alexandrium species. However, from 29 to 48 h, the clearance rate and cell filtration activity increased only in oysters...
Tipo: Text
Palavras-chave: Crassostrea gigas; Alexandrium catenella; PSP toxins; Digestion; Gene expression.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00130/24170/22172.pdf

Early weaning of marine fish larvae onto microdiets: Constraints and perspectives
Provedor de dados: 5
Autores: Person, L.
Weaning small sized marine fish larvae at first feeding directly onto compound pellets is still difficult, while good results can be obtained when used in combination with live prey or when a prefeeding period on live prey is provided up to a size of about 2-3 mg. Microdiets are generally well ingested as their acceptability and visual detection may be improved using feeding activators and increasing good perception contrast. In theory, food may be processed to have a correct nutritional balance, selection of high digestible components is very important as larval digestive system is not fully functional during the first 2 or 3 weeks of life.
Tipo: Text
Palavras-chave: Hatching; Fatty acids; Amino acids; Nutritional requirements; Feeding behaviour; Stomach; Digestive system; Enzymes; Digestion; Physiology; Diets; Pellet feeds; Feeding; Fish larvae.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1422.pdf

Growth factors in Penaeid shrimp feeding
Provedor de dados: 5
Autores: Guillaume, Julien; Cruz, R; Cuzon, Gerard; Wormhoudt Van, A; Revol, A.
Some nutrients known as non essential in vertebrates could be essential in invertebrates and could be related to some "unknown growth factors" which were evidenced or suspected, mainly in mollusc or crustacean flesh or meal, by several authors working on different species of crustaceans. A set of experiments was carried out in our laboratory in order to isolate one of these factors found in squid meal.
Tipo: Text
Palavras-chave: Penaeus japonicus; Food absorption; Digestive system; Haemolymph; Amino acids; Glucose; Digestion; Enzymes; Experimental research; Feeding; Shrimp culture; Laboratory culture.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/acte-1464.pdf

Feeding and digestion with bivalves
Provedor de dados: 5
Autores: Deslous-paoli, Jean-marc.
On the contrary to the U. S. where they represent but 4.6% of the total marine production , mollusc, principally bivalves, can no longer be considered as a marginal production. In France, 100 000 ton of oysters, 98% of which is represented by Crassostrea gigas (Héral &amp; al., 1985) and 85 000 ton of mussels (Mytilus edulis, Mytilus edulis galloprovincialis) (Dardignac, 1985) are produced yeraly. Elsewhere, new rearings are being developed, such as pectinidae and Ruditapes philippinarum, on the Atlantic and Mediterranean coasts. The species presently cultured, some of which dependiing only on natural collections (Crassostrea gigas, Mytilus edulis, Mytilus galloprovincialis while others depend on hatchery production, either partially Crasssotrea gigas in...
Tipo: Text
Palavras-chave: Ruditapes decussatus; Ostrea edulis; Mytilus edulis; Crassostrea gigas; Bivalves; Physiology; Digestion; Feeding.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/acte-7476.pdf

Morphology and Histology of the Pirarucu (Arapaima gigas) Digestive Tract
Provedor de dados: 77
Autores: Rodrigues,Ana Paula Oeda; Cargnin-Ferreira,Eduardo.
The present study describes the morphology and histology of the digestive tract of juvenile pirarucu, which is a Neotropical fish species with great potential for aquaculture in the Amazon region. Three size classes of pirarucu juveniles from commercial fish farms were sampled for histological examination of the oesophagus, stomach, pyloric caeca, intestine and liver. The morphological and histological features of the pirarucu digestive tract are similar to other carnivorous teleosts and enable the species to ingest, store and digest large food items. Acidic and neutral mucins are secreted by the mucosa of the oesophagus, stomach, pyloric caeca and intestine to protect the mucosal epithelium and to lubricate and facilitate food passage along the digestive...
Tipo: Journal article
Palavras-chave: Aquaculture; Fish nutrition; Digestion; Absorption; Carnivorous; Osteoglossiformes.
Ano: 2017
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300025

Postprandial thermogenesis in Bothrops moojeni (Serpentes: Viperidae)
Provedor de dados: 80
Autores: Stuginski,DR; Fernandes,W; Tattersall,GJ; Abe,AS.
Snakes that can ingest prey that are proportionally large have high metabolic rates during digestion. This great increase in metabolic rate (specific dynamic action - SDA) may create a significant augment in the animal's body temperature. The present study investigated postprandial thermogenesis in Bothrops moojeni. Briefly, two groups of snakes were fed meals equivalent to 17 ± 3% and 32 ± 5% of their body weight and were observed for 72 hours, in which thermal images of each snake were taken with an infrared camera in a thermostable environment with a constant air temperature of 30°C. The results showed a significant increase in snake surface temperature, with a thermal peak between 33 and 36 hours after feeding. The meal size had a great impact on the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bothrops; Thermogenesis; Feeding behavior; Digestion.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000300008

Observations on the diet of Balistes vetula (Pisces: Balistidae) in the Gulf of Salamanca, Colombian Caribbean
Provedor de dados: 20
Autores: Von-Schiller, D.; García, C.B.
Se describe el contenido de lo tractos digestivos de ejemplares de Balistes vetula capturados durante faenas de pesca científica. Los crustáceos representan la presa preferencial de esta especie en el Golfo de Salamanca y dentro de estos destaca el orden Brachyura. Estos resultados se contrastan con la dieta de la especie en otras latitudes.
Tipo: Journal Contribution
Palavras-chave: Diets; Benthos; Digestion; Fish; Benthos; Fish; Digestion; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_15903; Http://aims.fao.org/aos/agrovoc/c_2271.
Ano: 2000
URL: http://hdl.handle.net/1834/3321

Protein digestion in juvenile turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) and effects of dietary administration of &lt;i&gt;Vibrio proteolyticus&lt;/i&gt;
Provedor de dados: 27
Autores: De Schrijver, R.; Ollevier, F.P.
The trial was made to study the protein digestion in juvenile turbot during passage of digesta from stomach to rectum. Moreover, diet supplementation with the potential probiotic bacteria, &lt;i&gt;Vibrio proteolyticus&lt;/i&gt;, was evaluated with regard to protein digestion. For a 3-week period, fish (25-30 g) were fed by oral intubation and received either a liquid mixture consisting of 40% nonpurified control diet and 60% water or this mixture supplemented with 10 &lt;sup&gt;10&lt;/sup&gt; viable &lt;i&gt;V. proteolyticus&lt;/i&gt; ml &lt;sup&gt;-1&lt;/sup&gt;. Daily dry matter was 1.5% body weight. As digesta progressed from the stomach to the foregut, hindgut and rectum, the increase in apparent nitrogen digestibility was accompanied by higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquaculture; Diets; Digestibility; Digestion; Feeding experiments; Fish culture; Food conversion; Nitrogen; Probiotics; Probiotics; Proteins; Scophthalmus maximus; Stomach; Scophthalmus maximus; Vibrio proteolyticus.
Ano: 2000
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=9593

Comparative study of different wet mineralisation digestion methods for the measurement of total mercury in biological samples
Provedor de dados: 27
Autores: Dehairs, F.A.; Decadt, G.; Baeyens, W.F.J.
Three botanical substrates and one milkpowder were mineralised and digested by the following methods in order to measure their total mercury content:  (1) HF/HNO&lt;sub&gt;3&lt;/sub&gt;-KMnO&lt;sub&gt;4&lt;/sub&gt;; (2) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;-KMnO&lt;sub&gt;4&lt;/sub&gt;; (3) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;- H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt;; (4) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;-UV irradiation/KMnO&lt;sub&gt;4&lt;/sub&gt;; (5) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;/V&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5&lt;/sub&gt;-catalyst...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Mercury; Nutrients (mineral).
Ano: 1982
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3380

Foraging behavior and ruminal fermentation of dairy cows grazing ryegrass pasture alone or with white clover
Provedor de dados: 86
Autores: Ribeiro Filho,Henrique Mendonça Nunes; Peyraud,Jean-Louis; Delagarde,Rémy.
The objective of this work was to evaluate the influence of pasture composition and regrowth age on the relationship between feeding behavior and ruminal fermentation in dairy cows grazing perennial ryegrass with or without white clover. The experiment was carried out in a 2x2 factorial arrangement, with two sward types and two ages of regrowth. Swards of perennial ryegrass sown alone (PRG) and of perennial ryegrass mixed with white clover (GC) were evaluated. Twelve late-lactation Holstein cows, fistulated at the rumen, were distributed in a 4x4 latin square experimental design with four 12-day periods. Daily distribution of grazing was similar in the PRG and the GC swards, but the concentration of rumen volatile fatty acids (VFA) was higher and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lolium perenne; Trifolium repens; Digestion; Grazing; Grazing time.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000300019

Does gestation or feeding affect the body temperature of the golden lancehead, Bothrops insularis (Squamata: Viperidae) under field conditions?
Provedor de dados: 103
Autores: Bovo,Rafael P.; Marques,Otavio A. V.; Andrade,Denis V.
Temperature affects physiological performance in reptiles and, therefore, body temperature (Tb) control is argued to have an important adaptive value. Alterations in Tb due to transient changes in physiological state, as during digestion or gestation, are often linked to the potential benefits of a more precise Tb regulation. However, such thermoregulatory responses in nature remain controversial, particularly for tropical snakes. Herein, we measured Tb of the golden lanceheads, Bothrops insularis (Amaral, 1921), at Queimada Grande Island, southeastern Brazil, to test for alteration in selected body temperatures associated with feeding or gestation. We found no evidence that postprandial or gravid snakes selected for higher Tb indicating that, under...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Gravid females; Postprandial thermophilic response; Snake; Thermoregulation; Neotropics.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600020

Oilseeds in feeding for growing and finishing ¾ Boer + ¼ Saanen goat kids
Provedor de dados: 96
Autores: Alcalde,Claudete Regina; Grande,Paula Adriana; Lima,Luciano Soares de; Macedo,Francisco de Assis Fonseca de; Zeoula,Lucia Maria; Paula,Meiby Carneiro de.
In order to evaluate the use of oilseeds in the diet of goat kids, two experiments were performed. Experimental treatments consisted of four different total mixed diets, all containing oat hay, ground corn, soybean meal and mineral supplement, and differing in oilseeds inclusion (dry matter basis), according to the treatments: 1) control (without oilseeds), 2) diet containing 7.87% flaxseed, 3) diet with 7.30% sunflower seed, and 4) diet containing 8.00% canola. In the first experiment (to evaluate the performance), 28 ¾ Boer + ¼ Saanen castrated goat kids (22.66 kg to 30.88 kg BW) were allotted in a randomized design in feedlot. There was no difference between treatments for intake of dry matter, organic matter, crude protein and ether extract, total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Gain; Goats; Intake; Lipid.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000800019

Total and partial digestibility, rates of digestion obtained with rumen evacuation and microbial protein synthesis in bovines fed fresh or ensiled sugar cane and corn silage
Provedor de dados: 96
Autores: Menezes,Gustavo Chamon de Castro; Valadares Filho,Sebastião de Campos; Magalhães,Felipe Antunes; Valadares,Rilene Ferreira Diniz; Mariz,Lays Débora; Detmann,Edenio; Pereira,Odilon Gomes; Leão,Maria Ignez.
It was evaluated intake, rumen and intestinal digestibility and passage and digestion rates in bovines fed diets constituted of corn silage, crushed sugar cane and given fresh, crushed sugar cane and given after 72 hours of storage, ensiled sugar cane with 1% of calcium oxide and with no treatment and a same concentrate fixed at 1% of body weight. All roughage was corrected to contain 10% of crude protein. It was used five rumen-fistulated bovine with average weight of 240 ± 15 kg, distributed in a 5 × 5 Latin square. Abomasum and total fecal collection and two rumen evacuations were carried out in the morning. Animals fed corn silage based diet presented greater rumen digestibility of the protein and intestinal digestibility of the ether extract, greater...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Dry matter; Intake; NDF; Passage rate; Ruminants.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000500023

Rumen fermentation and nutrient flow to the omasum in Holstein cows fed extruded canola seeds treated with or without lignosulfonate
Provedor de dados: 96
Autores: Santos,Wallacy Barbacena Rosa dos; Santos,Geraldo Tadeu dos; Neves,Carolina Antunes; De Marchi,Francilaine Eloise; Silva-Kazama,Daniele Cristina da; Ítavo,Luís Carlos Vinhas; Damasceno,Julio Cesar; Petit,Hélène Veronique.
Four multiparous Holstein cows averaging 548 kg of body weight and 74 d in lactation were used in a Latin square design with four 21-d experimental periods to determine effects of feeding extruded versus non-extruded canola seed, with or without 50 g/kg lignosulfonate on rumen fermentation, nutrient flow to the omasum, and degradability of dry matter (DM) and N of each diet. The DM effective degradability increased with extrusion and lignosulfonate treatment had no effect. The effective degradability of N was similar between diets. Lignosulfonate treatment of extruded versus non-extruded canola seeds decreased ruminal and total tract apparent digestibility of organic matter. The lowest apparent ruminal and highest intestinal digestibilities of protein,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical treatment; Digestion; Heat treatment; Oilseed.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700026

Soybean hulls replacing ground corn in diets for early lactation Saanen goats: intake, digestibility, milk production and quality
Provedor de dados: 96
Autores: Zambom,Maximiliane Alavarse; Alcalde,Claudete Regina; Kazama,Daniele Cristina da Silva; Martins,Elias Nunes; Hashimoto,Juliano Hideo; Matsushita,Makoto; Ramos,Carlos Eduardo Crispim Oliveira; Grande,Paula Adriana.
The objective of this study was to evaluate productive performance and milk quality of Saanen goats fed diets with soybean hulls replacing ground corn (0, 50 and 100% replacement) in early lactation (from birth to 50 days of lactation). Fourteen goats (72.30±9.14 kg of BW) were used in a completely randomized design. Animals were confined in individual stalls, with daily control of feed intake and milk production. On the 30th day of lactation, fecal sampling started in order to determine nutrients digestibility. Every month, milk samples were collected for analyses of fat, protein, lactose and total solid percentage, somatic cell count, N-urea, acidity, density and also milk fatty acid profile. No differences were observed between diets for body weight,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agro industry by-product; Digestion; Fatty acids; Goat.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600029

Crude glycerin in diets for feedlot Nellore cattle
Provedor de dados: 96
Autores: van Cleef,Eric Haydt Castello Branco; Ezequiel,Jane Maria Bertocco; D'Aurea,André Pastori; Fávaro,Vanessa Ruiz; Sancanari,Juliana Borsari Dourado.
Two studies were conducted to evaluate the effects of crude glycerin on feed intake, performance, carcass characteristics, and total digestibility of Nellore bulls. In experiment 1, cattle (n = 30) were fed a control diet without crude glycerin and diets containing 7.5, 15, 22.5, and 30% crude glycerin, for 103 d. Animals were harvested and data of carcass characteristics were collected. In experiment 2, a digestibility trial was performed using indigestible acid detergent fiber (iADF) as internal marker, and five rumen-cannulated steers. Both experiments were conducted as a randomized complete block design and data were analyzed using mixed procedures. In experiment 1 no differences were observed among treatments on dry matter intake, and performance...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beef cattle; By-products; Carcass; Digestion; Glycerol.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000200006

Experimental approaches to study the nutritional value of food ingredients for dogs and cats
Provedor de dados: 96
Autores: Harmon,David L.
This review covers methods that have been applied to study the nutrient value or quality of specific ingredients fed to dogs, cats and comparable species (i.e. foxes, minks, rats, etc.). Typically, the nutritional value or utilization of a specific ingredient is measured by total tract digestibility and has been expanded through the measurement of total nutrient balance (i.e. nitrogen or energy). However, to better understand digestion it is necessary to obtain a more accurate measurement of nutrients entering and leaving the small intestine. Accurate measurement of small intestinal digestion is crucial in dogs and cats because nutrient digestion and absorption occurs primarily in the small intestine. Measuring small intestinal digestibility requires...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine; Digestion; Feline; Ileum; Marker; Nutrition.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007001000023

In situ caecal degradation of roughages in horses
Provedor de dados: 96
Autores: Silva,Vinícius Pimentel; Almeida,Fernando Queiroz de; Morgado,Eliane da Silva; Rodrigues,Liziana Maria; Santos,Tiago Marques dos; Ventura,Henrique Torres.
The present study was carried out to evaluate the in situ degradation of dry matter (DM), neutral detergent fiber (NDF) and crude protein (CP) in roughages by the in situ caecal digestion technique in horses. The roughages evaluated were: Lucerne hay (Medicago sativa), peanut (Arachis pintoi cv. Amarillo), desmodio(Desmodium ovalifolium), stylo (Stylosanthes guianensis cv. Mineirão), pigeon pea (Cajanus cajan), lime-yellow pea (Macrotyloma axillare) and coastcross hay (Cynodon dactylon cv. coastcross). The assay was conducted in a complete randomized design with seven roughages and three replications. One mare with a cannula fitted in the caecum was used, fed diet consisting of coastcross hay (80%) and concentrate (20%) at 2.0% BW, four times a day. Nylon...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cannula; Digestion; Fiber; Forage; Legume.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000200018

The integration of diet, physiology, and ecology of nectar-feeding birds
Provedor de dados: 97
Autores: McWHORTER,TODD J.; LOPEZ-CALLEJA,M. VICTORIA.
Balance between energy acquisition and expense is critical for the survival and reproductive success of organisms. Energy budgets may be limited by environmental factors as well as by animal design. These restrictions may be especially important for small endotherms such as hummingbirds, which have exceedingly high energy demands. Many nectar-feeding bird species decrease food intake when sugar concentration in food is increased. This feeding response can be explained by two alternative hypotheses: compensatory feeding and physiological constraint. The compensatory feeding hypothesis predicts that if birds vary intake to maintain a constant energy intake to match energy expenditures, then they should increase intake when expenditures are increased....
Tipo: Journal article
Palavras-chave: Energetics; Digestion; Feeding behavior; Hummingbirds; Nectarivory.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000300008

Intestinal Disaccharidases and Aminopeptidase-N in two species of Cinclodes (Passerine: Furnaridae
Provedor de dados: 97
Autores: SABAT,PABLO.
It has been postulated that both digestive capacity and intestinal biochemical features are correlated to dietary habits in birds. Therefore, it would be expected to find biochemical constraint to hydrolyze sugars in those species, which predate exclusively on marine invertebrates. In vitro intestinal activities of these enzymes were studied in Cinclodes nigrofumosus (d' Orbigny) and Cinclodes patagonicus (Gmelling). Due to differences in dietary habits between species I predicted the lack of sucrase activity in C. nigrofumosus but not in C. patagonicus. Also, low activities of maltase would be expected in both species. On the other hand due to the considerable amount of proteins and trehalose present in preys, high activities of both trehalase and...
Tipo: Journal article
Palavras-chave: Digestion; Dietary adaptation; Disaccharidases; Aminopeptidase-N; Cinclodes.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000200009

Temperature, energy acquisition and energy use in the Chilean silverside Basilichthys australis Eigenmann (Atherinopsidae)
Provedor de dados: 97
Autores: FUENTES,LEOPOLDO; VILA,IRMA; CONTRERAS,MANUEL.
We evaluated the influence of water temperature (Tw) on the energy acquisition and use in the chilean silverside Basilichthys australis (Eigenmann 1927), an endemic species inhabiting freshwater ecosystems in Chile. We tested the effect of Tw (11.5, 14.0, 18.0, 22.0 and 26.0 °C) on food intake, digestibility, food transit time and metabolic rate. As expected, this study demonstrated that many physiological variables under study were significantly affected by Tw, as well as the net energy balance of this species. Nevertheless, the net energy balance was not strictly related to the range of Tws evaluated. At Tws lower than 14 °C the energy budget was depressed, because food intake was lower than at Tws between 14 and 26 °C, where food intake was higher and...
Tipo: Journal article
Palavras-chave: Water temperature; Metabolic rate; Food consumption; Digestion; Energy budget; Basilichthys australis.
Ano: 2005
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2005000200014

Protein sources and digestive enzyme activities in jundiá (Rhamdia quelen)
Provedor de dados: 63
Autores: Lazzari,Rafael; Radünz Neto,João; Pedron,Fabio de Araújo; Loro,Vania Lucia; Pretto,Alexandra; Gioda,Carolina Rosa.
Digestive enzymes activity influence feed utilization by fish, and its understanding is important to optimize diet formulation. This study reports the digestive enzyme activities of jundiá juveniles fed diets with protein sources. Fish were fed six experimental diets for 90 days: MBY (meat and bone meal + sugar cane yeast), SY (soybean meal + sugar cane yeast), S (soybean meal), MBS (meat and bone meal + soybean meal), FY (fish meal + sugar cane yeast) and FS (fish meal + soybean meal), and then sampled every 30 days and assayed in two intestine sections for digestive enzymes - trypsin, chymotrypsin and amylase - activities; gastric protease was assayed in the stomach. Digestive and hepatosomatic index, intestinal quotient, digestive tract length and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Nutrition; Soybean meal; Meat and bone meal; Fish meal.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000300002

ผลของเอนไซม์ย่อยเยื่อใยที่ใช้กากมะเขือเทศเป็นแหล่งเยื่อใย ต่อคุณภาพซากในไก่งวง
Provedor de dados: 106
Autores: Kessara Ampaporn; Smerjai Bureenok; Kraisit Vasupen; Chalermpon Yuangklang; Benya Seanmahayak.
In this study, the influence of fibrolytic enzymes in diet contained tomato pomace as a fiber sources on carcass quality of 2 month old turkeys was assessed. A total of 24 birds were arranged in a completely randomized design (CRD). The birds were assigned to 4 dietary treatments: control diet (T1), control diet + 0.2% of fibrolytic enzymes (T2), control diet + 10% of tomato pomace (T3), and control diet + 0.2% of fibrolytic enzymes + 10% of tomato pomace (T4). The results were shown that the carcass quality and breast weight of all groups were no t difference (P&gt;0.05). For meat color, the redness color (a* value) and yellowness color (b* value) of breast were higher in birds fed control diet + 10% of tomato pomace (T3) and control diet + 0.2% of...
Tipo: PhysicalObject
Palavras-chave: Turkeys; Tomato pomace; Animal feeding; Supplementation; Fiber source; Protein source; Control diet; Digestion; Fibrolytic enzymes; Growth rate; Carcass quality; ไก่งวง; กากมะเขื่อเทศ; อาหารสัตว์; อาหารเสริม; วัตถุดิบอาหารสัตว์; แหล่งเยื่อใยในอาหาร; แหล่งโปรตีน; คุณค่าทางโภชนะ; การย่อยอาหาร; เอนไซม์ย่อยเยื่อใย; สมรรถภาพการผลิต; คุณภาพซาก.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5764

อิทธิพลของการเสริมกากเม่าต่อการย่อยสลายและผลผลิตแก๊สในหลอดทดลอง
Provedor de dados: 106
Autores: Pongsatorn Gunun; Nirawan Anantasook; Metha Wanapat; Srisuda Sirilaophaisan; Walailuck Kaewwongsa; Sudarat Sakunkhu; Kessara Ampaporn; Chalermpon Yuangklang.
This experiment aimed to investigate the effect of Mao pomace (MP) levels on degradability and rumen gas production using in vitro gas production techniques. The experiment was designed by a completely randomized design (CRD). The dietary treatments were supplemented by MP at 0, 4, 8, 12, 16 and 20 mg with 0.5 g of roughage and concentrate ratio at 60:40. It was found that gas production from the insoluble fraction (b) had no effect (p&gt;0.05) by MP supplementation, while potential extent of gas production (a+b) and gas production rate (c) were significantly different among treatments. Cumulative gas production at 96 h was not affected by MP supplementation (p&gt;0.05). Moreover, in vitro dry matter degradability (IVDMD) was not different among groups...
Tipo: PhysicalObject
Palavras-chave: Mao pomace; Antidesma thwaiteaianum; Animal feeding; Chemical composition; Nutritive value; Beef cattle; Degradability; Rumen gas production; Gas production technique; Digestion; กากเม่า; กากเนื้อเม่ารวมเมล็ด; การเสริมอาหาร; องค์ประกอบทางเคมี; คุณค่าทางโภชนะ; โคเนื้อ; กระเพาะรูเมน; เทคนิคผลผลิตแก๊ส; แก๊สมีเทน; ความสามารถในการย่อย; การย่อยอาหาร.
Ano: 2014
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5760

Evaluation in situ digestibility of alfalfa in different grinds and textiles
Provedor de dados: 2
Autores: Kuwahara, Frank Akiyoshi; Souza, Gilberto Batista de; Ferreira, Reinaldo de Paula; Costa, Ciniro; Meirelles, Paulo Roberto de Lima.
Indigestible fractions of dry matter (iDM) and neutral detergent fiber (iNDF) in the feed of ruminants are mainly estimated by in situ incubation time with regard to particle size and textile types. Samples of alfafa, ground into three particle sizes, were analyzed. Samples, processed in a Willey mill with 1.0; 2.0 and 3.0 mm sieve pores, were conditioned in F57 (Ankon®), nonwoven (100 g m-2) and polyester textile bags measuring 4 x 5 cm. Material was divided into 13 incubation periods and 8 replications, and incubated in the rumen of two multiparous cows adapted to a 70:30 diet, roughage:concentrate, respectively, for 288h. iDM and iNDF rates were evaluated sequentially for non-digested percentage and data underwent analysis of variance (ANOVA p &lt;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Neutral detergent fiber; F57; Nonwoven textile; Polyester textile.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/28867

Intake and digestibility of diets containing energy sources associated with sunflower meal or urea in feedlot steers - doi: 10.4025/actascianimsci.v33i2.11049
Provedor de dados: 2
Autores: Cleef, Eric Haydt Castello Branco Van; Unesp, Jaboticabal; Ezequiel, Jane Maria Bertocco; Unesp, Jaboticabal; Fontes, Nivia Araujo; UNESP; Faturi, Cristian; UFRA, Belém; Oliveira, Priscila Neubern; UFSCAR; Stiaque, Marcelo Gil; UNESP.
The aim of this study was to evaluate the intake and total and partial digestibility of diets using corn, soybean hulls and citrus pulp associated with sunflower meal or urea in feedlot steers. Four steers ½ Aberdeen Angus vs. ½ Nellore, fitted with rumen and duodenum cannulas, with 18 months old and 360 kg of initial weight. The diets were composed of two energy sources (corn and citrus pulp) associated with two nitrogen sources (urea and sunflower meal), in a total of four treatments, with forage:concentrate ratio of 40:60. The statistical design was a Latin square with four treatments and four periods of 21 days each. The average daily dry matter intake was influenced (p &lt; 0.05) by the diets, with the highest value was observed in corn and sunflower...
Tipo: Fieldwork; laboratory analysis
Palavras-chave: Bovine; Co-products; Digestion; Energy sources; Nitrogen sources 5.04.03.00-1 Bovinos; Coprodutos; Digestão; Fontes energéticas; Fontes nitrogenadas.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/11049

The influence of diurnal variation in animal activity and digestion on animal heat production
Provedor de dados: 111
Autores: Soren Pedersen; University of Aarhus.
Dimensioning of air conditioning plants for animal houses is traditionally based on steady-state conditions with constant animal heat and moisture production over a 24-hour cycle, despite the fact that the heat and moisture production varies diurnally. The heat production is normally highest in daytime and lowest during the night and therefore, there will be a discrepancy between the actual and the calculated indoor temperature and humidity, when using steady state models to control ventilation rate.&amp;nbsp; This article deals with the two main factors influencing on the diurnal heat production, namely the animal activity and the digestion of food. In experiments carried out over three years in respiration chambers at Research Centre Foulum, Denmark, the...
Palavras-chave: Heat production; Digestion; Pigs; Poultry; Laboratory; Animal activity; Diurnal variation.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3097

The influence of diurnal variation in animal activity and digestion on animal heat production
Provedor de dados: 111
Autores: Pedersen, Soren.
Dimensioning of air conditioning plants for animal houses is traditionally based on steady-state conditions with constant animal heat and moisture production over a 24-hour cycle, despite the fact that the heat and moisture production varies diurnally. The heat production is normally highest in daytime and lowest during the night and therefore, there will be a discrepancy between the actual and the calculated indoor temperature and humidity, when using steady state models to control ventilation rate.  This article deals with the two main factors influencing on the diurnal heat production, namely the animal activity and the digestion of food. In experiments carried out over three years in respiration chambers at Research Centre Foulum, Denmark, the diurnal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heat production; Digestion; Pigs; Poultry; Laboratory; Animal activity; Diurnal variation.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3097

Probiotic level effects on growth performance, carcass traits, blood parameters, cecal microbiota, and immune response of broilers
Provedor de dados: 42
Autores: POURAKBARI,MOHAMMADREZA; SEIDAVI,ALIREZA; ASADPOUR,LEILA; MARTÍNEZ,ANDRÉS.
Probiotic effects on growth performance, carcass traits, blood parameters, cecal microbiota, and immune response of broilers were studied. Two hundred one-day-old male chickens were allocated to one of five treatments (four replicates of 10 birds per treatment): control, and the same control diet supplemented with 0.005%, 0.01%, 0.015% and 0.02% probiotics. Probiotics in feed at 0.01% or higher levels of supplementation improved body weight gain (+12%) and feed conversion rate (-5%) compared with the control. There were no effects on carcass traits, but the relative weights of drumsticks and wings showed increasing and decreasing linear responses, respectively, to probiotic supplementation level. Blood plasma glucose and albumin contents linearly increased...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Immunity; Poultry; Probiotics; Production.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000301011

Chemical composition and nutrient degradability in elephant grass silage inoculated with Streptococcus bovisisolated from the rumen
Provedor de dados: 42
Autores: FERREIRA,DANIELE J.; ZANINE,ANDERSON M.; LANA,ROGÉRIO P.; RIBEIRO,MARINALDO D.; ALVES,GUILHERME R.; MANTOVANI,HILÁRIO C.
The objective of the present study was to assess the chemical and bromatological composition and in situ degradability of elephant grass silages inoculated with Streptococcus bovisisolated from cattle rumen. A complete randomized design was used with four treatments and six replications: elephant grass silage, elephant grass silage inoculated with 106 CFU/g Streptococcus bovisJB1 strains; elephant grass silage inoculated with 106 CFU/gStreptococcus bovis HC5 strains; elephant grass silage inoculated with 106 CFU/g Enterococcus faeciumwith six replications each. The pH and ammoniacal nitrogen values were lower (P&lt;0.05) for the silages inoculated with Streptococcus bovis JB1 and HC5, respectively. The silage inoculated withStreptococcus bovis had a higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Microorganisms; Nutritive value; Ruminant.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100465

Effect of adding macro and micro minerals in pig feces fed diets with different levels of probiotic
Provedor de dados: 52
Autores: Huaynate,Rizal Alcides Robles; Thomaz,Maria Cristina; Kronka,Rodolfo Nascimento; Fraga,Alessandro Luís; Scandolera,Antônio João; Budiño,Fábio Enrique Lemos.
This study aimed to verify the effect of diets with different doses (0, 100, 200 and 300 ppm) of probiotic on daily fecal production (DFP) and level of macro and micro minerals in feces of nursing (1st and 2nd initial phases) and growing pigs and during total period. The DFP, as percentage of body weight, was different (P&lt;0.05) among treatments only at 1st initial phase. Fecal levels of macro and micro minerals were similar (P&gt;0.05) among treatments, with exception of calcium and sodium excretion at 1st initial phase and calcium, zinc and nickel during total period. The addition of a poliprobiotic to diets do not affect fecal production of nursing and growing pigs. However, the presence of microorganisms, added (levels of 200 and 300 ppm) in diets...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calcium; Digestion; Lactobacillus; Piglet; Zinc.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000400005

Oral tolerance induction with altered forms of ovalbumin
Provedor de dados: 56
Autores: Stransky,B.; Faria,A.M.C.; Vaz,N.M.
As a T cell-dependent phenomenon, oral tolerance is not expected to depend necessarily on native configuration of antigens. We investigated the induction of oral tolerance with modified ovalbumin (Ova). Oral administration of heat-denatured (HD-Ova) and cyanogen bromide-degraded ovalbumin was less effective than native Ova in inducing oral tolerance in B6D2F1 mice. HD-Ova was effective in suppressing delayed-type hypersensitivity (DTH) reactions but did not suppress specific antibody formation. Injection of Ova directly into the stomach, but not into the ileum or cecum, suppressed subsequent immunization to DTH reactions. Gavage with protease inhibitors (aprotinin or ovomucoid) before gavage with Ova was ineffective in blocking tolerance induction....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antigen; Digestion; Oral tolerance; Mouse; Ovalbumin.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000300009

In vitro solubility of meat and bone meal protein with different pepsin concentrations
Provedor de dados: 65
Autores: Bellaver,Cláudio; Zanotto,Dirceu Luís; Guidoni,Antônio Lourenço; Klein,Claudete Hara.
In vitro protein digestibility of protein sources has been correlated with in vivo digestibility values. However, factors like protein origin, enzyme used and its concentration, pH and processing have been related with the significance of the correlation between the estimates. To address only the enzyme concentration factor, this paper had the objective of testing pepsin at 0.2, 0.02, 0.002 and 0.0002% using the standard AOAC (1995) procedure. Two meat and bone meals (MBM) with low and high crude protein (CP) content were used to determine the coefficient of solubility of CP in pepsin and HCl (CSCPPEPH). Centrifugation was used to establish the nitrogen (N) in the soluble phase, instead of filtration and analysis of N in the residue. The variance analysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Animal by-product; In vitro methodology.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782000000300020

Anaerobic co-digestion of animal manure at different waste cooking oil concentrations
Provedor de dados: 65
Autores: Sunada,Natália da Silva; Orrico,Ana Carolina Amorim; Orrico Junior,Marco Antonio Previdelli; Lucas Junior,Jorge de; Lopes,Walter Renato Teixeira; Schwingel,Alice Watte.
ABSTRACT: This study aimed to obtain the best dose of waste cooking oil inclusion for the co-digestion of substrates prepared with dairy cattle and swine manure in order to maximize solids reductions and biogas yield. Analyses of total solids (TS), volatile solids (VS), and neutral detergent fiber (NDF) were performed during the loading and unloading of digesters, while biogas yield was measured twice a week. The maximum reduction in VS (51.4%) was reached with the inclusion of up to 54.6g waste cooking oil.kg manure-1. Maximum NDF degradation occurred with inclusions of up to 69.4g waste cooking oil.kg manure-1. Inclusions of up to 64g of waste cooking oil.kg manure-1 provided specific biogas yield of 291.4 and 251.0L biogas.kg VS-1 added to substrates...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digestion; Biogas; Energy recycling.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000700351

Passage kinetics of digesta in horses fed with coastcross hay ground to different degrees
Provedor de dados: 64
Autores: Silva,Vinicius Pimentel; Almeida,Fernando Queiroz de; Pimentel,Róbson Ricardo Moreira; Godoi,Fernanda Nascimento de; Santos,Tiago Marques dos; Pires,Marcus Sandes.
This study was conducted to evaluate the kinetics, physicochemical characteristics and particle size of digesta in the right ventral colon (RVC) of horses fed coastcross hay ground to different degrees. Four horses fitted with cannulae in the RVC were used and were fed the following forms of hay: long, chopped, ground to 5 mm and ground to 3 mm. A Latin Square 4x4 study design was used. Each experimental period included 10 days for diet adaptation, four days for feces collection and one day for digesta collection. The kinetics of the particulate and solute phases of digesta were evaluated based on the mean retention time (MRT), passage rate (k) and transit time (TT) using two external markers: Cr-NDF and Co-EDTA. The TT of solid phase digesta was 3 hours...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromium; Digestion; Particle size; Passage rate.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000500010