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Effects of Yucca Extract on Feed Efficiency, Immune and Antioxidative Functions in Broilers BABT
Su,Jun-Ling; Shi,Bin-Lin; Zhang,Peng-Fei; Sun,Deng-Sheng; Li,Ti-Yu; Yan,Su-Mei.
Effects of yucca extract (YE) on feed efficiency, immune and antioxidative function in Arbor Acres broilers were studied. One hundred and twenty-eight fourteen-day-old broiler chickens were randomly divided into four treatments with four replicates of 8 birds each. These four diets were formulated by adding 0, 100, 200 and 300 mg/kg YE to the basal diet. The results showed that: diets supplemented with 100 and 200 mg/kg YE increased average body weight gain, feed efficiency, IgG, IgM, T-AOC, CAT and SOD levels, and have positive effects on inducing immune organs' maturation. In addition, 100 mg treatment mainly improved the feed efficiency whereas 200 mg treatment mainly acted on immunity and anti-oxidation. In conclusion, YE can be used as a feed additive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Yucca product; Chicken; Feed efficiency; Immunity; Antioxidant.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100504
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Effets de l’incorporation de la farine de tomate dans l’alimentation du Tilapia du nil (oreochromis niloticus, l., 1758) en élevage dans les eaux géothermales du sud Tunisien OceanDocs
Azaza, M.S.; Mensi, F.; Imouri Toko, I.; Dhraief, M.N.; Abdelmouleh, A.; Brini, B.; Kraiem, M.M..
Afin de réduire le coût des aliments aquacoles, nous avons procédé à la substitution d’une matière première végétale importée: le tourteau de soja (TS) par un sous produit local : la farine de tomate (FT). L’expérience est menée sur des juvéniles de Tilapia (Oreochromis niloticus) monosexe mâle ayant un poids moyen initial de 20,54 ± 0,08 g. (poids moyen ± ES), et elle consiste à tester 4 régimes alimentaires isoprotéiques (27 % de protéines) et isoénergétiques (17 KJ/g) contenant différents taux de farine de tomate: 0 % (aliment témoin), 10 %, 20 % et 30 % noté respectivement A0, A10, A20 et A30. Ces aliments sont testés, durant 75 jours. A la fin de l’expérience les poids moyens finaux ont atteint des valeurs comprises entre 98,62 g et 129,77 g selon...
Tipo: Journal Contribution Palavras-chave: Diets; Digestibility; Feed efficiency; Feeding experiments; Fish culture; Growth; Marine aquaculture; Nutrition; Oreochromis niloticus; Http://aims.fao.org/aos/agrovoc/c_34687.
Ano: 2006 URL: http://hdl.handle.net/1834/4238
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Environmental impacts of genetic improvement of growth rate and feed conversion ratio in fish farming under rearing density and nitrogen output limitations ArchiMer
Besson, M.; Aubin, J.; Komen, H.; Poelman, M.; Quillet, E.; Vandeputte, Marc; Van Arendonk, J. A. M.; De Boer, I. J. M..
Today, fish farming faces an increasing demand in fish products, but also various environmental challenges. Genetic improvement in growth rate and feed conversion ratio is known to be an efficient way to increase production and increase efficiency in fish farming. The environmental consequences of genetic improvement in growth rate and feed conversion ratio, however, are unknown. In this study, we investigated the environmental consequences of genetic improvement in growth rate and feed conversion ratio in an African catfish farm, using Recirculating Aquaculture System (RAS). In RAS, total fish production of the farm is limited by rearing density or by the capacity to treat dissolved nitrogen. To evaluate the environmental consequences of genetic...
Tipo: Text Palavras-chave: Life cycle assessment; African catfish; Feed efficiency; Recirculating aquaculture system; Selection; Thermal growth coefficient.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00302/41355/40546.pdf
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Estimation of genetic parameters of feed conversion ratio based on individual phenotypes and genomic data in sea bass ArchiMer
Besson, Mathieu; Allal, Francois; Chatain, Beatrice; Vergnet, Alain; Clota, Frederic; Ferrari, Sebastien; Vandeputte, Marc.
We estimated genetic parameters of feed conversion ratio (FCR) and daily growth coefficient (DGC) using individual phenotypes measured in aquariums under a restricted feeding regime and genomic information on 2,722 SNP markers. The results showed a moderate heritability of both traits (0.26 for FCR and 0.41 for DGC) as well as close to unity negative genetic correlation between them. Thus, FCR of fish in aquariums could be improved by selecting fish for higher DGC. Nevertheless, these results must be taken with caution until we know whether individual FCR measured in aquariums also reflects the FCR of fish reared in groups.    
Tipo: Text Palavras-chave: Feed efficiency; Fish; Genomics.
Ano: 2018 URL: http://archimer.ifremer.fr/doc/00446/55756/57416.pdf
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Feed intake, molt frequency, tissue growth, feed efficiency and energy budget during a molt cycle of mud crab juveniles, Scylla serrata (Forskål, 1775), fed on different practical diets with graded levels of soy protein concentrate as main source of protein ArchiMer
Nguyen, Ngoc Thi Bich; Chim, Liet; Lemaire, Pierrette; Wantiez, Laurent.
There has been growing interest in the development of mud crab aquaculture in New Caledonia. However, for this to become established at a commercial level, a cost-effective formulated feed based on internationally-available ingredients needs to be developed. We have evaluated the optimal dietary protein content for juvenile crabs, Scylla serrata (Forskål, 1775), using a series of diets with a protein content ranging from 27 to 49% and soy protein concentrate (SPC) as the main protein source. For this purpose, 54 individually housed crabs were allocated to five dietary treatments (n = 10 or 11). The crabs were fed ad libitum, for 81 days with the allocated diets. The apparent digestibilities of dry mater, crude protein and energy were high (96.2-97.3%),...
Tipo: Text Palavras-chave: Scylla serrata; Tissue growth; Feed efficiency; Protein requirement; Soy protein concentrate; Energy budget.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00211/32196/30630.pdf
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Feed restriction of F1 Holstein × Zebu cows in the final third of lactation modifies intake, nutrient digestibility, feeding behavior, and performance R. Bras. Zootec.
Santana,Pedro Felipe; Rocha Júnior,Vicente Ribeiro; Ruas,José Reinaldo Mendes; Monção,Flávio Pinto; Borges,Luana Alcântara; Rigueira,João Paulo Sampaio; Ramos,Joyce Cipriana Pacheco; Gomes,Virgílio Mesquita.
ABSTRACT The objective of this study was to evaluate the effect of quantitative feed restriction level on nutrient intake and digestibility, nitrogen balance, efficiency and feeding behavior, and productive performance of F1 Holstein × Zebu cows in late lactation. Sixty F1 Holstein × Zebu cows were used at the stage of late lactation (183.0±17.5 days of lactation) and with initial body weight (BW) of 499±30 kg. The experimental arrangement adopted was the completely randomized design, with five feed restriction levels (3.39, 2.75, 2.50, 2.25, and 2.00% of BW) and twelve cows as replicates for each treatment. The roughage:concentrate ratio was of 75:25 in the total dry matter of the diet. The restriction of dietary supply from 3.39 to 2.0% of BW linearly...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crossbred cows; Feed efficiency; Milk production; Nitrogen balance.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100701
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Feeding behavior of dairy cows in feedlot and fed on crude glycerin levels in the diet Animal Sciences
Meneses, Murilo de Almeida; Universidade Estadual do Sudoeste da Bahia; Silva, Fabiano Ferreira da; Universidade Estadual do Sudoeste da Bahia; Schio, Alex Resende; Universidade Estadual do Sudoeste da Bahia; Silva, Robério Rodrigues; Universidade Estadual do Sudoeste da Bahia; Souza, Dicastro Dias de; Universidade Estadual do Sudoeste da Bahia; Porto Junior, Antônio Ferraz; Universidade Estadual do Sudoeste da Bahia.
Current experiment evaluated the inclusion effect of crude glycerin levels in the diet on the feeding behavior of confined dairy cows. Fifteen crossbred Holsteinx Zebu cows were used, divided into three 5 x 5 Latin squares, with treatments: control (no addition of glycerin) and inclusion of 50, 100, 150 and 200 gcrude glycerin per kg of dry matter (DM) in the diet. The animals were subjected to five visual assessments of feeding behavior for 24 hours in each period. Linear increase on feeding time and rumination and on decrease of idle time with the inclusion of crude glycerin levels (p < 0.05) was reported. There was a linear effect on consumption of dry matter and neutral detergent fiber (NDF) corrected for ash and protein (NDF); a similar effect...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.00.00-2; 5.04.03.00-1 feeding; Visual assessment; Feed efficiency; Leisure; Rumination.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21488
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Feeding behavior of lactating cows fed palm kernel cake in the diet Animal Sciences
Pimentel, Leidiane Reis; Silva, Fabiano Ferreira da; Silva, Robério Rodrigues; Schio, Alex Resende; Rodrigues, Eli Santana de Oliveira; Oliveira, Paulo Andrade de.
This study aimed to evaluate the effect of including of palm kernel cake on feeding behavior of lactating crossbred cows. Twelve crossbred Holstein x Zebu cows were distributed in three 4 x 4 latin squares, with the following treatments: control; inclusion of 5%; inclusion of 10%; inclusion of 15% palm kernel cake in the diet dry matter. The animals were observed during four periods as to feeding behavior, 24 hours in each period. There was no effect of inclusion of palm kernel cake (p > 0.05) on time spent on eating, ruminating and idling. The feeding efficiencies of dry matter and corrected neutral detergent fiber, total digestible nutrients, and the rumination efficiency of corrected neutral detergent fiber were not influenced (p > 0.05). There...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Behavioral activities; Feeding; Feed efficiency; Dry matter; Idle; Rumination.
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/23391
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Feeding behaviors of feedlot bulls fed concentrate levels and babassu mesocarp meal R. Bras. Zootec.
Cruz,Rossini Sôffa da; Alexandrino,Emerson; Missio,Regis Luis; Neiva,José Neuman Miranda; Restle,João; Melo,Jonahtan Chaves; Sousa Júnior,Antonio de; Resende,José Messias de.
The objective of the present study was to evaluate the feeding behavior of feedlot Nellore bulls fed two levels of concentrate (650 and 710 g/kg dry matter) with or without the inclusion of 350 g babassu mesocarp meal/kg dry matter in the concentrate. Twenty-eight animals at 18 months of initial age and 356.66±19.25 kg initial body weight were used. A completely randomized design was used with treatments in a 2 × 2 factorial arrangement. Increase in concentrate level from 650 to 710 g/kg dry matter did not change the feeding time, of 194.41 and 189.64 minutes/day, respectively. The inclusion of 350 g babassu mesocarp meal/kg dry matter in the concentrate increased the feeding time from 173.92 to 210.12 minutes/day, ensuring similar energy intake in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biofuels; Feed efficiency; Feeding time; Idle; Rumination.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700024
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Genetic analysis of residual feed intake adjusted for fat and carcass and performance traits in a Nellore herd Ciência Rural
Moraes,Giovanna Faria de; Abreu,Luiza Rodrigues Alves; Ferreira,Isabel Cristina; Pereira,Idalmo Garcia.
ABSTRACT: The study of the genetic evaluation of residual feed intake adjusted for fat (RFIFat) is important for the appropriate use of feed efficiency in selection programs. The objective was to analyze the influence of selection for RFIF at on carcass and performance traits by estimating various genetic parameters. Data were analyzed from five tests of feed efficiency, which were conducted with 677 Nellore males. Genetic evaluation was performed by Bayesian inference using an animal model via single- and two-trait analyses. Variables analyzed were dry matter intake, average daily gain, RFIFat, rib eye area, back fat thickness, rump fat thickness, marbling score, and subcutaneous fat thickness. The posterior mean distributions estimated at each analysis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Back fat thickness; Feed efficiency; Genetic correlation; Heritability.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000200651
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Hematological profile of beef cattle with divergent residual feed intake, following feed deprivation PAB
Gomes,Rodrigo da Costa; Siqueira,Renata Farinelli de; Ballou,Michael Alan; Stella,Tiago Roberto; Leme,Paulo Roberto.
The objective of this work was to characterize the hematological profiles of steers and bulls, according to residual feed intake (RFI), after feed deprivation. Twenty‑month‑old Nellore steers and bulls were fed feedlot diets for 70 and 56 days, respectively. RFI was calculated as the difference between actual feed intake and expected feed intake. More and less efficient steers and bulls, according to RFI, were subjected to 24 hours of food deprivation. Blood was sampled prior to and following the withdrawal period. Hematological analyses included total and differential white blood cell count, red blood cell count and morphology, and plasma glucose concentration. Variation in RFI did not influence plasma glucose concentration or blood cell profiles. Glucose...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bos indicus; Fasting; Feed efficiency; Leukocytes; Stress.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000900019
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Improving feed efficiency in fish using selective breeding: a review ArchiMer
De Verdal, Hugues; Komen, Hans; Quillet, Edwige; Chatain, Beatrice; Allal, Francois; Benzie, John A. H.; Vandeputte, Marc.
Improving feed efficiency (FE) is key to reducing production costs in aquaculture and to achieving sustainability for the aquaculture industry. Feed costs account for 30–70% of total production costs in aquaculture; much work has been done on nutritional and husbandry approaches to improve FE but only a limited amount of research has been devoted to using genetics, despite its potential. This paper reviews past work to improve FE in fish using selective breeding and assess future directions. Direct selection on FE traits requires methods to measure individual feed consumption and estimate FE efficiently and accurately. This is particularly difficult to do in fish because of the environment in which they live. Many of the published studies on FE were found...
Tipo: Text Palavras-chave: Feed conversion ratio; Feed efficiency; Feed intake; Fish; Genetics; Selection.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00415/52675/53771.pdf
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In search for indirect criteria to improve feed utilization efficiency in sea bass (Dicentrarchus labrax) Part II: Heritability of weight loss during feed deprivation and weight gain during re-feeding periods ArchiMer
Grima, Laure; Chatain, Beatrice; Ruelle, Francois; Vergnet, Alain; Launay, Amandine; Mambrini, Muriel; Vandeputte, Marc.
Selective breeding to improve residual feed intake (RFI) in sea bass (Dicentrarchus labrax) is a major goal that would optimize economic gain while minimizing the environmental impact of production. Due to the difficulty in accurately measuring individual feed intake, no selective breeding program has yet been started. In a previous study, we identified a criterion phenotypically related to RFI variations: the loss of weight during feed deprivation, FD. Moreover, an additional composite criterion (CC) integrating both FD and weight gain during subsequent re-feeding (RF) was closely related to RFI, even though the relationship was only close to significance (P=0.06). The aim of the present study was to estimate the heritability of these two traits, in order...
Tipo: Text Palavras-chave: European sea bass; Dicentrarchus labrax; Feed efficiency; Heritability; Genetic parameters; Residual feed intake; Feed deprivation; Compensatory growth; Selective breeding.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00004/11529/8213.pdf
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In search for indirect criteria to improve residual feed intake in sea bass (Dicentrarchus labrax) Part I: Phenotypic relationship between residual feed intake and body weight variations during feed deprivation and re-feeding periods ArchiMer
Grima, Laure; Vandeputte, Marc; Ruelle, Francois; Vergnet, Alain; Mambrini, Muriel; Chatain, Beatrice.
No commercial breeding programs have yet started to improve feed utilization efficiency in fish, mainly because of the difficulty in accurately measuring individual feed intake in fish reared in groups. Our general goal is to propose indirect criteria to be used for breeding of commercial lines. In a previous study undertaken with rainbow trout clones, a genetic correlation was detected between residual feed intake (RFI), and body weight variation during successive periods of feed deprivation (FD) and re-feeding (RF). To assess the pertinence of such indirect criteria for future breeding programs, we set up a large experiment using sea bass (Dicentrachus labrax), a recently domesticated species with broad genetic diversity. The objectives of the present...
Tipo: Text Palavras-chave: European sea bass; Dicentrachus labrax; Feed efficiency; Residual feed intake; Feed deprivation; Compensatory growth; Selective breeding.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00002/11297/7838.pdf
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International study on <i>Artemia</i> : 30. Bio-economic evaluation of the nutritional value for carp (<i>Cyprinus carpio</i> L.) larvae of nine <i>Artemia</i> strains OMA
Vanhaecke, P.; Sorgeloos, P..
The nutritional value of fresh hatched nauplii from nine geographical strains of brine shrimp, <i>Artemia</i> , was determined for larvae of the carp (<i>Cyprinus carpio</i>). After 2 weeks of culture, the survival of carp larvae was over 90% and no significant differences in survival among treatments were detected. The growth rate of the larvae, however, was a function of the <i>Artemia</i> strain used. The highest weight gains were recorded with parthenogenetic <i>Artemia</i> , to the lowest with Chaplin Lake brine shrimp and intermediate results with the other bisexual strains. With the exception of the Chaplin lake strain, the growth results were positively correlated with the size and weight of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Feed efficiency; Nutritional requirements; Artemia; Cyprinus carpio.
Ano: 1983 URL: http://www.vliz.be/imisdocs/publications/261900.pdf
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Mineral requirement of Penaeids ArchiMer
Piedad-pascual, F.
Marine shrimps absorb minerals from their aquatic environment aside from the minerals that come from the food they eat. Thus, the dietary requirement of shrimps for certain minerals will depend on the amounts and availability of these minerals in the aquatic environment. Dietary sources for growth may be necessary due to losses during moltings.
Tipo: Text Palavras-chave: Penaeus californiensis; Penaeus monodon; Penaeus japonicus; Penaeidae; Malacostraca; Juveniles; Moulting; Feed efficiency; Survival; Growth; Phosphorus; Calcium; Diets; Shrimp culture; Nutritional requirements.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1454.pdf
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No efficiency of the lateral system on nocturnal feeding in the European sea bass (Dicentrarchus labrax L.) ArchiMer
Faucher, Karine; Dutto, Gilbert; Coves, Denis; Aubert, Anne; Lagardere, Jean-paul.
In order to evaluate the effect and consequence of lateral system inactivation on fish nocturnal feeding, the differential growth of groups of European sea bass maintained in different rearing conditions were compared. Whereas some fish with intact lateral system (placebo fish) were placed under a photoperiod of 12-L: 12-D, other placebo fish were kept in the dark. In the same way, fish deprived of lateral system by section of their lateral system nerves and antibiotic treatment were placed under a photoperiod of 12-L: 12-D and the others in the dark. For each of these four rearing conditions, two sets of experiment were realized. Percent mortality, feed rhythm, averaged daily feed demand, specific growth rate and feed efficiency were compared among these...
Tipo: Text Palavras-chave: Feed efficiency; Growth; Nocturnal feeding; Photoperiod; Lateral system; European sea bass.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-2267.pdf
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Performance of dairy cows fed rations produced with sugarcane silages treated with additives or fresh sugarcane R. Bras. Zootec.
Pedroso,André de Faria; Nussio,Luiz Gustavo; Rodrigues,Armando de Andrade; Santos,Flávio Augusto Portela; Mourão,Gerson Barreto; Barioni Júnior,Waldomiro.
An experiment was performed aiming at evaluating the performance of dairy cows fed sugarcane silages treated with additives compared to cows fed fresh forage. Twenty-four Holstein cows were grouped in blocks of three cows, according to parity order and milk production level, in multiple 3 x 3 Latin Square design to evaluate three types of ration (63% roughage and 37% concentrate in dry matter - DM): ration with silage treated with urea (5.0 g/kg of fresh forage - FF) + sodium benzoate (0.5 g/kg FF); ration with silage inoculated with Lactobacillus buchneri (5 x 10(4) cfu/g FF); ration with fresh sugarcane. Each evaluation period consisted of two weeks for adaptation and one week for data collection. Cows fed rations with silages treated with urea +...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Feed efficiency; L. Buchneri; Milk composition; Milk production; Sodium benzoate; Urea.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000900005
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Protein metabolism, feed energy partitioning, behavior patterns and plasma cortisol in Nellore steers with high and low residual feed intake R. Bras. Zootec.
Gomes,Rodrigo da Costa; Sainz,Roberto Daniel; Leme,Paulo Roberto.
The objective was to evaluate protein turnover, nitrogen balance, feed energy partitioning, behavior patterns and plasma cortisol in Nellore (B. indicus) cattle with high and low residual feed intake (RFI = actual minus expected dry matter intake). Seventy-two Nellore steers (16 to 21 months-old, 334±19 kg initial body weight) were fed a feedlot diet for 70 days ad libitum. Daily dry matter intake (DMI) and average daily gain (ADG) were recorded individually and RFI was calculated. The 12 steers of lowest (Low-RFI, most efficient) RFI and the 12 ones of highest RFI (High-RFI, least efficient) were evaluated with respect to their behavior patterns and plasma cortisol concentration. Urine was collected for determination of daily 3-methylhistidine excretion...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bos indicus; Feed efficiency; Methane; Net feed intake; 3-methyl-histidine; Zebu.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000100007
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Relationship between residual feed intake and enteric methane emission in Nellore cattle R. Bras. Zootec.
Mercadante,Maria Eugênia Zerlotti; Caliman,Ana Paula de Melo; Canesin,Roberta Carrilho; Bonilha,Sarah Figueiredo Martins; Berndt,Alexandre; Frighetto,Rosa Toyoko Shiraishi; Magnani,Elaine; Branco,Renata Helena.
Feed intake and average daily gain (ADG) in Nellore cattle were determined to calculate residual feed intake in two performance tests: first during the growth phase (RFIgrowth) and then during a measurement of the methane emission phase (RFImet). During the RFIgrowth test, 62 males and 56 females were classified as low-, medium-, and high-RFI. Enteric methane emission was measured in 46 animals; 23 males used for RFImet measurement plus 23 females (22 low-RFIgrowth and 24 high-RFIgrowth). Diet consisted of Brachiaria brizantha cv. Marandu hay (445 g/kg DM) and concentrate (555 g/kg DM). During the RFIgrowth and RFImet phases, DMI was lower in the animals with low RFI, with no difference in ADG. Residual feed intake was -0.359 and 0.367 kg DM/d for low- and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Beef cattle; Enteric methane production; Feed efficiency; Performance; Sulfur hexafluoride.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000700255
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