Animal Diet Milk Composition
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Predicting post-absorptive protein and amino acid metabolism
ABSTRACT Sustainable production of adequate quantities of food to support a growing human population is a worldwide goal. Under current feeding conditions in the United States, dairy cattle convert dietary nitrogen to milk nitrogen with 25% efficiency. The remaining 75% is excreted, which contributes to air and water quality problems and reduces economic per
R. Bras. Zootec.. Publicado em: 29/11/2018
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2. Effect of the addition of protected fat from palm oil to the diet of dairy sheep
ABSTRACT The objective of this study was to evaluate the effect of protected fat from palm oil on body weight and milk production and composition of lactating Lacaune ewes. Four treatments (0, 20, 40, and 60 g kg−1 as fed) of protected fat from palm oil were used to feed nine animals in each group. Isoproteic and isoenergetic diets were formulated and adju
R. Bras. Zootec.. Publicado em: 23/11/2018
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3. Produção, composição do leite e desempenho reprodutivo de ovelhas Santa Inês alimentadas com rações contendo óleo de canola ou linhaça / Milk yield, milk composition and reproductive performance of Santa Inês ewes fed diets containing canola or linseed oil
The objective in this study was to evaluate the effect of the addition of canola oil (CO) or linseed oil (LO) on milk production and composition and reproductive performance of Santa Inês ewes. In the experiment I, 33 Santa Inês ewes were fed diets containing 50% of roughage (Cynodon dactylon hay). Experimental diets included a control (no oil) and two rem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/04/2012
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4. Concentrados comerciais com diferentes teores de proteína bruta para vacas em lactação submetidas a dietas com palma forrageira (Opuntia fícus-indica. Mill).
The objective of this study was to evaluate the effect of usage of commercial concentrates with different levels of protein in the diet of lactating Girolando cows on the nutrient intakes, performance and milk composition. Eight Girolando cows were used in the experiment. They averaged 545 50 kg of living weight and 110 14 days of lactation at the beginning
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
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5. Desempenho e viabilidade econômica da produção de vacas em lactação suplementadas com torta de girassol
Twenty crossbred Holstein-zebu primiparous and multiparous after peak of lactation, with an average of 18.18 L and 101 days of lactation, were used to evaluate the performance of milk produced by cows fed diets containing different additions of sunflower cake (SFC): 0; 24; 48 e 72% and maintained on pasture elefhantgrass. The cows were divided into groups of
Publicado em: 2010
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6. Levels of concentrate and rumen undegradable protein in the diet of lactating cows / Níveis de concentrado e de proteína não degradável no rúmen na dieta de vacas em lactação
The modern consumer increasingly choose quality products, and industry, seeking to adapt to this new trend, has sought to reward the producer by milk quality, especially with regard to its total solids composition. This way, an experiment was conducted at the Dairy Cattle Teaching, Research and Extension Unit of Animal Science Department of Universidade Fede
Publicado em: 2009
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7. Levels of crude protein in diets for dairy Holstein cows in tie stall / Níveis de proteína bruta em dietas para vacas leiteiras da Raça Holandesa em confinamento
It was evaluated the effect of diets with levels crude protein - CP (10, 12, 14 and 16% in dry matter - DM) on the performance and efficiency of utilization of nutrients in dairy cows. Twelve Holstein cows with average body weight (BW) of 570 kg, milk production (MP) of 13 kg/day were distributed in three 4x4 Latin squares. The feed consisted of 75% of corn
Publicado em: 2009
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8. Desempenho, características da carcaça, perfil de ácidos graxos e parâmetros ruminais de ovinos alimentados com rações contendo polpa cítrica úmida semi despectinada e/ou polpa cítrica desidratada / Performance, carcass characteristics, fatty acids profile and ruminal measures in sheep fed diets containing wet low pectin citrus pulp and/or dried citrus pulp
The objective of this study was to evaluate the performance, fatty acids (FA) profile and ruminal measures of sheep fed citrus coproducts in diets containing high concentrate. Additionally, the performance and metabolic estimates from SRNS model - Small Ruminant Nutrition System were compared to experimental data. In Experiment I, 28 ewes were fed diet conta
Publicado em: 2009
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9. Replacement of soybean meal by cottonseed meal in diets based on spineless cactus for lactating cows / Substituição do farelo de soja pelo farelo de algodão corrigido com uréia em dietas à base de palma forrageira para vacas em lactação
The objective was to evaluate the effect of replacement of soybean meal by cottonseed meal on the diet of dairy cows fed diets based on spineless cactus. Five Girolando lactating cows were used, with average live weight of 490 kg and average production of 11,5 kg of milk/day, distributed in a 5x5 Latin square design (5 animals, 5 treatments and 5 experimenta
Publicado em: 2008
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10. Performance and feed efficiency of lactating cows supplemented with live yeast / DESEMPENHO E EFICIÃNCIA ALIMENTAR DE VACAS LEITEIRAS SUPLEMENTADAS COM LEVEDURA VIVA
Performance and nutrient utilization of dairy cows supplemented with Saccharomyces cerevisiae strain CNCM I-1077 (Lallemand SAS, France) were evaluated. Twenty Holsteins, averaging 143Â49 days in lactation at the beginning of the trial, formed ten blocks based on milk yield and were randomly assigned to a sequence of two treatments, in a cross-over design,
Publicado em: 2008
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11. Feed efficiency of milking cows receiving concentrate in different levels and associated or not with propolis / Eficiência alimentar em vacas leiteiras recebendo concentrado em diferentes níveis e associado ou não a própolis
The present work was performed at Departamento de Zootecnia of Universidade Federal de Viçosa, MG, Brazil, with the objective of evaluating the response of milking cows receiving two levels of concentrate and presence or absence of ethanolic extract of propolis in the diet, in the intake and apparent digestibility of nutrients, milk production and compositi
Publicado em: 2007
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12. Silagem de cana-de-açúcar tratada com aditivo químico ou microbiano na alimentação de cabras em início de lactação / Sugar cane silage treated with microbial or chemical additives fed to goats in early lactation
Sugar cane is an important roughage source for ruminants. Sugar cane silage is an alternative feed which may improve operation efficiency at farm level. However, high levels of ethanol found in sugar cane ensiled without additive may reduce voluntary feed intake and may affect animal performance. Two experiments were performed to evaluate the effects of usin
Publicado em: 2007