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A model for evaluating beef cattle rations considering effects of ruminal fiber mass R. Bras. Zootec.
Henrique,Douglas Sampaio; Lana,Rogério de Paula; Vieira,Ricardo Augusto Mendonça; Fontes,Carlos Augusto de Alencar; Botelho,Mosar Faria.
A mathematical model based on Cornell Net Carbohydrate and Protein System (CNCPS) was developed and adapted in order to evaluate beef cattle rations at tropical climate conditions. The presented system differs from CNCPS in the modeling of insoluble particles' digestion and passage kinetics, which enabled the estimation of fiber mass in rumen and its effects on animal performance. The equations used to estimate metabolizable protein and net energy requirements for gain, net energy requirement for maintenance and total efficiency of metabolizable energy utilization were obtained from scientific articles published in Brazil. The parameters of the regression equations in these papers were estimated using data from Bos indicus purebred and crossbred animals...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Modeling; Nutrition; Ruminants.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100036
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A novel method to optimize culture conditions for biomass and sporulation of the entomopathogenic fungus Beauveria Bassiana IBC1201 BJM
Gao,Li.
Biomass yields and sporulation of Beauveria bassiana was concerned on culture conditions, environmental factors and cultivation method. We optimized the best culture conditions for biomass yields of B. bassiana IBC1201 with the novel "two-stage" cultivation method as well as orthogonal matrix method. Firstly, we cultured spore suspension on the basal medium (sucrose 19.00 g, soy peptone 4.06 g, K2HPO4 1.00 g, KCl 0.50 g, MgSO4 0.50 g, FeSO4 0.10 g and 17.00 g Bactor) for the first stage culture of 4 days under room condition. Then, we transferred them to another defined medium (Cellobiose 9.52 g, urea 1.70 g, ZnSO4•7H2O 0.05 g/L, MnSO4•H2O 0.005 g/L, CaCl2 1.00 g/L, CuSO4•5H2O 0.05 g/L and 17.00 g Bactor) for more 4 days cultivation with the environmental...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nutrition; Environment; Biomass; Sporulation; Beauveria bassiana.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400045
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A pesquisa e seus reflexos no desenvolvimento da pecuária bovina de corte. Infoteca-e
COSTA JÚNIOR, E. M. A..
Evolução dos conhecimentos. Área de pastagem e nutrição. Área de melhoramento genético. Área de sanidade animal. Área de reprodução. Área de economia rural.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Bovino de corte; Melhoramento genético; Sanidade; Economia rural; Brasil; Pasture; Health; Agricultural economic.; Historia; Pesquisa; Nutrição; Pastagem; Reprodução.; Brazil; Beef cattle; Breeding; History; Nutrition; Reproduction; Research..
Ano: 1984 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/317575
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A proposal for IRRI to establish a grain quality and nutrition research center International Rice Research Institute
Graham, R..
15 p. : ill. IRRI Discussion Paper Series no. 44
Tipo: Technical Report Palavras-chave: Rice; Quality; Nutrition; Grain quality.
Ano: 2002 URL: http://hdl.handle.net/10269/164
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A REVIEW OF FOOD SECURITY AND HUMAN NUTRITION ISSUES IN NEPAL AgEcon
Shively, Gerald E.; Gars, Jared; Sununtnasuk, Celeste.
Nepal faces multiple development challenges, including chronic and widespread food insecurity and adult and child malnutrition. Due to population growth, agricultural stagnation and a range of institutional failures, the threat of a serious food crisis in Nepal is substantial. The recent scaling back of WFP assistance means that food security conditions in some parts of Nepal will undoubtedly worsen in the near future. This paper presents a brief review of topics and available evidence regarding food security, malnutrition and related subjects in Nepal. It is intended to document important source material and provide an overview of topics for non-specialists or those moving into new areas of concern.
Tipo: Working or Discussion Paper Palavras-chave: Agriculture; Health; Nutrition; Nepal; Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; International Development; I12; I31; O19; Q18.
Ano: 2011 URL: http://purl.umn.edu/116190
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Accumulation of macronutrients in different parts of sunflower fertilized with cassava wastewater AGRIAMBI
Dantas,Mara S. M.; Rolim,Mario M.; Pedrosa,Elvira M. R.; Bezerra Neto,Egídio; Silva,Gerônimo F. da; Silva,Ênio F. de F. e.
ABSTRACT The utilization of organic wastes in agriculture is an alternative that can reduce the amounts of mineral fertilizers applied to the soil. The aim of this study was to evaluate the accumulation of macronutrients in sunflower cv. 'Hélio 250' fertilized with cassava wastewater. The experiment was conducted in randomized block design, with six treatments (0; 8.5; 17; 34; 68 and 136 m3 ha-1 of cassava wastewater) and four replications. The accumulation of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and sulfur (S) were evaluated in leaves, stem, capitulum and achenes. The cassava wastewater dose of 136 m3 ha-1 promoted the greatest accumulation of all evaluated nutrients. The pattern of macronutrients accumulation occurred...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Helianthus annuus; Nutrition; Fertilization; Residue; Manihot esculenta.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700630
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Accuracy of Nonlinear Formulation of Broiler Diets: Maximizing Profits Rev. Bras. Ciênc. Avic.
Gonçalves,CA; de Almeida,MA; Faria-Júnior,MJA; Pinto,MF; Garcia-Neto,M.
Nutritionists need to make commercial decisions about the optimal nutrient content broiler feeds. In order to demonstrate that broiler prices may influence dietary nutrient density, this study developed quadratic feed intake and weight gain equations, according to broiler sex and feeding phase, to be applied in a nonlinear feed formulation model. Four hundred and eighty Cobb broilers were allotted to a completely randomized experimental with six treatments, each with four replicates of 10 birds each, from 1 to 56 days old. Treatments consisted of diets containing 2800, 2900, 3000, 3100, 3200, or 3300 kcal metabolizable energy (ME)/kg and constant nutrient to ME ratio. A nonlinear version of the PPFR feed formulation software (http://www.fmva.unesp.br/ppfr)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Energy; Excel; Mathematical modeling; Nutrition; Response surface.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200173
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Acute rumenitis due to lipid overload in a bovine Ciência Rural
Bonadiman,Humberto Binsfeld; Schwertz,Claiton Ismael; Sousa,Susy Hermes de; Bianchi,Ronaldo Michel; Caprioli,Rafaela Albuquerque; Dalto,André Gustavo Cabrera; Pavarini,Saulo Petinatti; Driemeier,David.
ABSTRACT: The objective of this paper is to report the epidemiological, clinical, and pathological aspects of a case of rumenitis due to the ingestion of soybean oil in a bovine. The ox had access to barrels that stored soybean oil and ingested an indeterminate amount of the product. After consuming it, the animal presented hiporexia; liquid, brownish, and greasy feces; severe dehydration (12%); apathy; sternal recumbency; and death with a clinical evolution of 4 days. At necropsy, the rumen was filled with voluminous food and moderate amount of white-gray liquid with a greasy appearance. Upon microscopic examination, hydropic degeneration of the epithelium and areas of mucosal necrosis were observed in the rumen and reticulum. From these findings, we...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diseases of ruminants; Nutrition; Ruminal acidosis; Soybean oil.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000900550
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Adaptation des enzymes digestives à l'alimentation chez la crevette Penaeus vannamei (Crustacea Decapoda) ArchiMer
Le Moullac, Gilles.
L'adaptation des enzymes digestives chez la crevette P. vannamei a été étudiée en fonction des cycles biologiques en relation avec les constituants de l'alimentation principalement les glucides (amidon) et les protéines. La trypsins, la chymotrypsine et 1'amylase, 3 enzymes majeures, chez P. vannamei ont été purifiées et caractérisées. La trypsine est formée de 3 isoenzymes dont le poids moléculaire apparent est compris entre 31 et 3 2 kDa. La nature glycosylée de la trypsine est révélée. La chymotrypsine est formée de 2 isoenzymes de poids moléculaire similaire (24 kDa). L'amylase purifiée est constituée de 2 isoenzymes dont le poids moléculaire apparent est de 31 kDa. Les propriétés biochimiques sont étudiées. L'étude immunologique a permis de mesurer...
Tipo: Text Palavras-chave: Penaeus vannamei; Hécatopancréas; Biochimie; Immunologie; Enzymes digestives; Trypsine; Chymotrypsine; Amylase; Larves; Adultes; Intermue; Protéines alimentaires; Amidon; Nutrition; Adaptation.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00029/14012/11198.pdf
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Adaptations biochimiques intestinales chez la truite: Influence de l'aliment et de la salinite sur quelques proprietes membranaires ArchiMer
Leray, C.
The authors report the results of physiological and biochemical experiments which confirm the important role player by fish (Salmo gairdneri ) intestinal mucosa in their osmoregulatory process. The ability of the dietary lipids to modulate this function is described. It was demonstrated that the ionic apical permeability of the enterocytes are related to their membrane lipid composition. The importance of the essential fatty acids is emphasized. The time course changes of the apical permeability are of value in improving sea water adaptation, similar conclusions are reported for Nacl supplementation.
Tipo: Text Palavras-chave: Salmonidae; Pisces; Biological membranes; Fatty acids; Diets; Osmotic adaptations; Biochemical phenomena; Intestines; Lipids; Nutrition; Salinity effects; Euryhalinity; Osmoregulation.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/1983/acte-1249.pdf
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Adaptive parameters and thermal comfort of postpartum ewes fed on concentrate supplementation in grazing system Animal Sciences
Rocha, Ronne-von Ribeiro da; Universidade Federal do Piauí; Oliveira, Petrônio Batista de; Universidade Federal do Piauí; Nunes, Amaury Guimarães; Universidade Federal do Piauí; Silva, Tairon Pannunzio Dias e; Universidade de São Paulo; Pereira, Alécio Matos; Universidade Federal do Piauí; Torreão, Jacira Neves da Costa; Colégio Técnico de Bom Jesus.
Current analysis evaluated adaptive parameters and thermal comfort of postpartum ewes fed on concentrate supplementation in grazing system. Thirty lactating pluriparous sheep, 16 Santa Inês (SI) and 14 Morada Nova (MN) were used. Physiological parameters such as respiratory rate (RR), heart rate (HR) and rectal temperature (RT) were measured, in that order, with the animals at rest in the morning (6:00-7:00 am) and in the afternoon (1:00-2:00 pm), respectively, every seven days, with 10 samples. A significant effect (p < 0.05) for RR and HR was reported in the strain. Similar behavior was reported for RR between the breeds where MN sheep had high adaptability. Supplementation levels of 0.5 and 1.5% influenced (p < 0.05) RR which was stronger...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental factors; Heat stress; Nutrition; Thermoregulation.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22823
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Addition of Amylase from Aspergillus Awamori to the Diet of Broiler Chickens Rev. Bras. Ciênc. Avic.
Morgado,HS; Cysneiros,CSS; Sousa,CM; Stringhini,JH; Ulhoa,CJ; Silva,AS; Fabino Neto,R; Freitas,PVDX; Oliveira,HP; Batista,LHC.
ABSTRACT Two experiments were performed to evaluate the hematological and blood biochemistry parameters, biometry of digestive organs, enzyme activities, protein content and absolute weight of the pancreas of broilers fed pre-starter and pre-starter diets supplemented or not with amylase from Aspergillus awamori. In total, 120 male Cobb chicks were housed in heated cages in each experiment. A completely randomized experimental design, with two treatments (feed with and without amylase) and six replicates per treatment of 10 birds each was applied. The data were subjected to analysis of variance using the F-test at 5% probability level. The dietary amylase addition did not affect hematological and blood biochemistry parameters and the biometry of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Blood; Chickens; Fungi; Nutrition.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400725
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Adoption of Hybrid maize in Zambia: effects on gender roles, food consumption, and nutrition AgEcon
Kumar, Shubh K..
Enhanced agriculture productivity in sub-Saharan Africa is critical to promote economic growth and poverty alleviation and to avoid increasing food scarcities in the region. The impact of commercialization and intensification of agriculture on the well- being of the rural poor depends on how they are carried out. Past research by IFPRI and collaborating institutions on commercialization of small- scale farming in about a dozen countries provided new knowledge about the relationships between commercialization and rural well- being as measured by incomes, consumption, and nutrition. These links were shown to depend greatly on household behavior, which in turn is influenced by intrahousehold processes. A better understanding of these processes is likely to...
Tipo: Report Palavras-chave: Corn industry; Zambia; Eastern Province; Hybrid corn; Economic aspects; Food consumption; Nutrition; Agricultural laborers; Sex role in work environment; Crop Production/Industries; Food Consumption/Nutrition/Food Safety.
Ano: 1994 URL: http://purl.umn.edu/37917
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Agricultural Growth, Poverty, and Nutrition in Tanzania AgEcon
Pauw, Kalie; Thurlow, James.
Rapid economic growth has failed to significantly improve poverty and nutrition outcomes in Tanzania. This raises concerns over a decoupling of growth, poverty, and nutrition. We link recent production trends to household incomes and caloric availability using a dynamic computable general equilibrium and micro-level poverty and nutrition modules. Results indicate that the structure of economic growth—not the level—is currently constraining the rate of poverty reduction in Tanzania. Agricultural growth has been driven by larger-scale farmers that are less likely to be poor. Growth has further been concentrated in crops grown in only a few regions of the country. Slow expansion of food crops and livestock also explains the weak relationship between...
Tipo: Journal Article Palavras-chave: Economic growth; Poverty; Nutrition; Computable general equilibrium modeling; Tanzania; Food Security and Poverty.
Ano: 2010 URL: http://purl.umn.edu/95974
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Agronomic characteristics of forage sorghum cultivars for silage production in the lower middle San Francisco Valley - doi: 10.4025/actascianimsci.v35i1.13072 Animal Sciences
Santos, Rafael Dantas dos; Empresa Brasileira de Pesquisa Agropecuária (Embrapa Semiárido); Pereira, Luiz Gustavo Ribeiro; Empresa Brasileira de Pesquisa Agropecuária (Gado de Leite); Neves, André Luis Alves; Empresa Brasileira de Pesquisa Agropecuária (Gado de Leite); Rodrigues, José Avelino Santos; Empresa Brasileira de Pesquisa Agropecuária (Milho e Sorgo); Costa, Cleber Thiago Ferreira; Universidade Federal Rural de Pernambuco; Oliveira, Getúlio Figueiredo de; Universidade Federal de Sergipe.
Productive performance for silage production of five forage sorghum genotypes (BRS Ponta Negra, BRS 655, BR 601, BRS 506 and BRS 610) was evaluated through the yield of dry matter, digestible dry matter, and fresh matter, plant height, percentage of lodged and broken plants, and anatomical fractions in Brazilian semi-arid region. BRS 506 and BRS Ponta Negra varieties achieved the highest fresh forage yields (89.4 and 76.2 ton. ha-1), and BRS 506, stood out for dry and digestible dry matter yield (25.2 and 12.1 ton. ha-1, respectively). Regarding the participation of the plant fractions, BRS 655 and BRS 610 genotypes showed a higher percentage of panicles (50.2 and 41.0% respectively), while BRS 506 stressed out the stem participation (84.6%), and BRS Ponta...
Tipo: Pesquisa de campo Palavras-chave: 5.04.04.00-8; 5.04.04.01-6; 5.04.05.00-4 fforage; Dry matter; Nutrition; Ruminants; Sorghum bicolor (L.) Moench.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13072
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Algumas leguminosas de verão indicadas para adubação verde. Infoteca-e
CAMPO, R. J.; CORDEIRO, D. S.; SFREDO, G. J.; BORKERT, C. M.; PALHANO, J. B..
bitstream/item/33213/1/comunicado-tecnico-1.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Adubação verde; Leguminosa; Nutrition; Vegetables.
Ano: 1979 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445264
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Alternatives to antibiotic growth promoters for weanling pigs Ciência Rural
Santana,Marconi Bonfim de; Melo,Antonio Diego Brandão; Cruz,Daniel Ribeiro; Garbossa,Cesar Augusto Pospissil; Andrade,Carla de; Cantarelli,Vinicius de Souza; Costa,Leandro Batista.
An experiment was conducted to evaluate the addition of sodium butyrate, plant extracts and nucleotides on weanling pig performance, digestive content pH, organ morphometry, and intestinal epithelial histology. A total of 90 piglets at 21 days of age and an average initial weight of 6.35±0.34kg were used. The piglets were distributed in a randomized complete block design with five treatments, six replicates, and three animals per experimental unit. The treatments consisted of the following: Control: basal diet without antibiotic; Antibiotic: basal diet with 40mg kg-1 colistin sulfate and Additive: 1000, 1500 and 2000mg kg-1 of a combination of sodium butyrate + plant extracts + nucleotides. The experiment lasted 35 days, at which time one animal was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Herbal extracts; Nucleotides; Nutrition; Sodium butyrate.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000601093
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America's Eating Habits: Changes and Consequences AgEcon
Individual chapters in this book provide different perspectives on the nutrition problems in the United States: what are the economic costs associated with unhealthy eating patterns; how do dietary patterns compare with dietary recommendations; how do national income and prices, advertising, health claims, and trends in eating away from home affect nutrient intake; how much do people know about nutrition and how does nutrition knowledge and attitudes affect intake of fats and cholesterol; how do different government programs and regulations influence food expenditures and consumption; what are some public and private efforts to improve healthy eating; and what are potential impacts of healthier eating on domestic agriculture.
Tipo: Report Palavras-chave: Diet; Nutrition; Health; Eating patterns; Nutrition education; Nutrition knowledge; Dietary guidelines; Food guide pyramid; Food supply; Food consumption; Food assistance programs; School lunch; Food away from home; Advertising; Health claims; Nutrition labeling; Agriculture; Economic costs; Healthy Eating Index; Healthy People 2000; Food Consumption/Nutrition/Food Safety.
Ano: 1999 URL: http://purl.umn.edu/33604
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Amino acid reduction in broiler diets supplemented with phytase and elaborated according to different nutritional plans Ciência e Agrotecnologia
Oliveira,Jeferson Eder Ferreira; Rodrigues,Paulo Borges; Alvarenga,Renata Ribeiro; Zangeronimo,Márcio Gilberto; Lima,Gustavo Freire Resende.
The need for suitable diets in chickens, considering the ideal protein concept associated with phytase, is important in order to improve the productivity of birds. The aim of this study was to assess the need for the correction of amino acid levels in the diets of broilers, by using different combinations of crude protein (CP) supplemented with phytase. For performance, eight days old Cobb 875 broiler chicks, with initial body weights of 155 ± 1.4g were used. The birds were distributed in a completely randomised design with seven treatments (nutritional plans) and five replicates of 25 birds. For the metabolism trial, 300 birds were selected which were also distributed using the same design, but with five, four and three birds per experimental stage: 8-21...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcass characteristics; Ideal protein; Nutrition; Performance.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000200012
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AN ECONOMETRIC MODEL OF THE DEMAND FOR FOOD AND NUTRITION AgEcon
LaFrance, Jeffrey T..
A flexible, full rank two model of food consumption that is globally consistent with economic theory, aggregates across income, demographic variables, and variations in micro demand parameters, and accommodates tradeoffs between tastes and nutrition is derived. The econometric demand model is estimated with per capita U.S. consumption of 21 foods on the time period 1919-1994, excluding the World War II years 1942-1946. An approach for inferring the percentage of nutrients available from individual commodities in the U.S. food supply is derived and implemented empirically on the time period 1949-1995 for the nutrients energy, protein, total fat, carbohydrates, and cholesterol. The two sets of model results are combined to generate time paths for income...
Tipo: Working or Discussion Paper Palavras-chave: Aggregation; Demand; Food; Nutrition; Hicksian Compensated Price Elasticities; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 1999 URL: http://purl.umn.edu/25004
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