Ruminal Degradability
Mostrando 1-12 de 55 artigos, teses e dissertações.
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1. Effects of antibiotic growth promoters and concentrate on intake, digestibility, degradability, and ruminal variables in beef steers
RESUMO O objetivo foi avaliar a adição de antibióticos promotores de crescimento ao concentrado sobre o consumo, digestibilidade, degradabilidade in situ e variáveis ruminais de novilhos. Quatro novilhos em um delineamento quadrado latino foram alimentados com feno (ad libitum), concentrado [10g kg-1 do peso corporal (PC)] e mistura mineral (0,272g kg-1
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Publicado em: 2022
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2. USE OF VIRGINIAMYCIN AND SALINOMYCIN IN THE DIET OF BEEF CATTLE REARED UNDER GRAZING DURING THE RAINY SEASON: PERFORMANCE AND RUMINAL METABOLISM
Resumo O rúmen é o órgão mais estudado no que se refere à interação simbiótica entre hospedeiro e a microbiota do trato digestivo dos ruminantes. Assim, objetivou-se avaliar os efeitos da inclusão de virginiamicina e de salinomicina ao suplemento para bovinos de corte com dieta de gramínea tropical no período das águas. Foram constituídos três
Ciênc. anim. bras.. Publicado em: 29/04/2019
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3. Additives on in vitro ruminal fermentation characteristics of rice straw
ABSTRACT The objective of this study was to evaluate the effects of mineral and protein-energy (MPES), exogenous fibrolytic enzyme supplements (ES), combination of MPES + ES, and straw without supplement (WS) on digestibility, fermentation kinetic parameters, cumulative gas production, methane, CO2 production, and volatile fatty acid concentration of rice st
R. Bras. Zootec.. Publicado em: 2017-03
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4. Degradability and kinetics of fibrous particles in cattle fed diets based on corn silage and concentrates with or without addition of lipids
ABSTRACT Eight rumen-cannulated steers were assigned to two 4 × 4 balanced Latin squares to evaluate degradability and kinetics of fiber particles from diets based on corn silage and supplements with or without addition of lipids. Dietary treatments were: only corn silage (T1), corn silage plus concentrate with no added lipids (T2), corn silage plus concent
R. Bras. Zootec.. Publicado em: 2016-12
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5. Performance and metabolite profile of dairy cows fed tropical grasses and concentrates containing crude protein with low or high degradability
ABSTRACT Ten Holstein-Zebu crossbred cows distributed into two simultaneous Latin squares (5 × 5) as a 2 × 2 factorial arrangement formed by chopped sugarcane or elephant grass silage, both with high or low protein degradability supplements and a corn silage as a control treatment, were compared using orthogonal contrasts. The studied variables were the pe
R. Bras. Zootec.. Publicado em: 2016-09
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6. Cinética ruminal de dietas contendo farelo de mamona destoxificado
The kinetics of gas production and in vitro ruminal degradation of diets contained replacement of soybean meal (SBM) by detoxicated castorbean meal (DCBM) (0, 15, 30 and 45% of substitution) were evaluated in this study. Values of gas production of non-fibrous carbohydrates (Vf1), fibrous carbohydrates (Vf2) and total carbohydrates (V) showed quadratic behav
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2015-04
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7. Different true-protein sources do not modify the metabolism of crossbred Bos taurus × Bos indicus growing heifers
The present study was conducted to investigate the effect of alternative true-protein sources to soybean meal, with different ruminal degradability, using a sugarcane-based diet, on nutrient digestion, ruminal fermentation, efficiency of microbial protein synthesis and passage rate in prepubertal dairy heifers. Eight crossbred rumen- and duodenum-cannulated
R. Bras. Zootec.. Publicado em: 2015-02
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8. Slow-release urea in supplement fed to beef steers
Replacing regular urea (RU) by slow-release urea (SRU) at two levels of non-protein nitrogen (NPN) in concentrate, offered with low-quality roughage, was evaluated in beef steers on dry matter intake (DMI), ruminal fermentation parameters, plasma urea nitrogen (PUN), total tract apparent digestibility of diets and in situ degradability of nitrogen sources. E
Braz. arch. biol. technol.. Publicado em: 2015-02
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9. Particle passage kinetics and neutral detergent fiber degradability of silage of pineapple waste (aerial parts) under different packing densities
The objective of this study was to determine the kinetics of in situ degradability parameters of the dry matter (DM) and neutral detergent fiber (NDF) and the passage of materials originating from the ensilage of the waste from pineapple cultivation (aerial parts). The four treatments utilized were silage of pineapple waste compacted at 600, 700, 900 and 100
R. Bras. Zootec.. Publicado em: 2014-01
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10. Chemical composition and nutrient degradability in elephant grass silage inoculated with Streptococcus bovis isolated from the rumen
Objetivou-se avaliar a composição químico-bromatológica e a degradabilidade in situ de silagens de capim-elefante inoculadas com Streptococcus bovis isolado do rúmen bovino. O delineamento experimental foi o inteiramente casualizado, com quatro tratamentos e seis repetições: Silagem de capim-elefante; Silagem de capim-elefante inoculada com 106 CFU/g
An. Acad. Bras. Ciênc.. Publicado em: 2013-12
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11. In situ rumen degradation kinetics as affected by type of pasture and date of harvest
Botanical composition affects the nutritive value and nutrient degradation kinetics of pastures. However, there is little information about pastures composed of various species. The present study was conducted to evaluate in situ degradation kinetics of dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) of a naturalized non fertilized past
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-12
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12. Effect of tanniniferous plants and essential oils on methane emission in ruminants / Efeito de plantas taniníferas e óleos essenciais sobre a emissão de metano em ruminantes
Tannins and essential oils are secondary metabolites that may be used as natural modifiers of rumen fermentation to reduce the ruminants\ methane (CH4) emission. To study the application of tannin-rich plants from Egypt and Brazil, as well as essential oils that are available in international trade, three studies were conducted at Animal Nutrition Laboratory
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/07/2012