Roughage Feeds
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Methane production of two roughage and total mixed ration as influenced by cellulase and xylanase enzyme addition
In recent decades supplementation of animal feeds with exogenous fibrolytic enzymes has substantially improved digestibility and animal performance. However, information related to associated methane production is limited and inconsistent. This study evaluated the effect of cellulase and xylanase enzymes on in vitro methane production of Eragrostis curvula h
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-02
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2. Exigências e eficiência energética e protéica de ovinos Dorper x Santa Inês alimentados com dietas contendo volumosos de valor nutricional distinto. / Requirements and efficiency of energy and protein use for Dorper × Santa Inês sheep fed diets containing roughages with different nutritive value
The objective of this study was to evaluate the effect of using roughages with different nutritive value on requirements and efficiency of energy and protein use of growing ½ Dorper × ½ Santa Inês sheep. For this purpose, eighty four non-castrated male lambs were weaned at 56 days of age (initial BW = 18.0 ± 3.3 kg) and penned in individual stalls, bein
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/08/2011
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3. Evaluation of milk production systems using a dynamic simulation model / Avaliação de sistemas de produção de leite por meio de modelo dinâmico de simulação
The Thesis is divided into four chapters. Chapter 1 aimed at selecting functions that mathematically represent lactation curves, providing a better fit to the observed data, to be used in simulation models of milk production systems. Data base was built with 6,459 recordings of daily milk production per cow obtained from monthly and quarterly milk controls b
Publicado em: 2008
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4. Performance of Nellore cattle fed individualy or in group, nutrient requirements and proteic evaluation of feeds for ruminants / Desempenho de bovinos Nelore alimentados individualmente ou em grupo, exigências nutricionais e avaliação protéica de alimentos para ruminantes
The present work was developed based on four experiments. The two firsts were conducted aiming to evaluate the fecal dry matter production using total fecal collection or estimated by chromic oxide (Cr2O3), titanium dioxide (TiO2), isolated, purified and enriched lignin of Eucalyptus grandis (LIPE), indigestible neutral and acid detergent fiber (NDFi and ADF
Publicado em: 2007
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5. Comparison of in vivo and laboratorial methods to assess the nutritive value of beef cattle feeds / COMPARAÇÃO DE MÉTODOS IN VIVO E LABORATORIAIS PARA AVALIAR O VALOR NUTRITIVO DE DIETAS PARA BOVINOS DE CORTE
This experiment was carried out to compare in vivo and laboratorial methods to estimate the nutritive value of beef cattle feeds. Diets were isonitrogenous and composed by corn silage as a roughage source and 25, 40, 55 and 70 % of concentrate. Diets digestibility values measured in an in vivo digestibility assay were compared to those obtained from in situ,
Publicado em: 2006
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6. Efeito do estresse térmico sobre a seleção de dieta por bovinos / Effect of heat stress on diet selection by bovine
The effect of heat stress on diet selection of ruminants was studied in a completely randomized design with 12 fistulated dry cows. The trial was conducted in 20 days with two treatments: thermal comfort (open barn, 21°C) and heat stress (climatic chamber, 38°C). Feeds were offered separately and ad libitum and composed by sugar cane + urea (14% CP) and co
Publicado em: 2005
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7. Comparative evaluation of fiber effectiveness of forage and byproducts. / Análise comparativa da efetividade da fibra de volumosos e subprodutos.
Two experiments were conducted to evaluate fiber effectiveness of forages and byproducts. In experiment I, five ruminally cannulated Holstein cows were used in a 5 x 5 Latin square design to evaluate fiber effectiveness of sugarcane (SC) and sodium hydroxide treated sugarcane (SHSC). Low and high forage diets (14 and 22% of dietary DM from corn silage NDF, r
Publicado em: 2003
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8. Effect of monensin on fermentation characteristics of the artificial rumen.
Addition of monensin (Rumensin, Eli Lilly and Co.) to an artificial rumen immediately depressed the digestion of roughage and of roughage/concentrate (50:50) feeds. Methane and propionate production were affected only with the roughage/concentrate feed.