Efeitos de dietas com níveis crescentes de milho no metabolismo ruminal de energia e proteína em bubalinos

Alves, T. C.; Franzolin, Raul; Rodrigues, Paulo Henrique Mazza; Alves, Ana Carolina

doi:10.1590/s1516-35982009001000021

Cited by 6 publications

(2 citation statements)

References 13 publications

(8 reference statements)

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“…This was probably a consequence of the N availability in the rumen environment for the microorganisms to increase microbial efficiency, thereby maximizing the degradability and digestibility of the fiber, directly affecting the rumination time, and reducing the feed particle size to facilitate the degradation process, since the fiber content and its physical form are the main factors affecting the rumination process (Alves et al, 2009). This may be attributed to the balanced ruminal concentration of ammonia from nitrogen compounds used in the diets and the source of fermentable carbohydrates that provided similar ADG among the animals receiving the different NPN levels, which in turn might have been caused by a lower uptake of rumen undegradable protein (RUP) and the fact that the intestine limited the animal performance due to lack of metabolizable protein.…”

Section: Discussionmentioning

confidence: 99%

Substitution of soybean meal for urea in diets based on deferred buffelgrass hay for feedlot sheep

et al. 2018

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The objective of this study was to evaluate the effect of substituting soybean meal for urea in diets based on deferred buffelgrass on the performance of feedlot sheep. Thirty mixed-breed sheep with an average initial body weight of 17±1.5 kg were distributed in a completely randomized design in which the experimental treatments consisted of five diets with six replicates. Diets were composed of deferred buffelgrass plus concentrates and calculated to be isoproteic. Treatments were represented by the substitution of soybean meal for the urea levels (0, 25, 50, 75, and 100%). Nutrient intake did not differ among animals fed diets with urea levels. Hot and cold carcass weights, hot and cold carcass dressing percentages, initial and final pH, and weight of commercial cuts did not differ among animal fed diets with urea levels. There was no difference for non-carcass components among animals, except for the empty carcass, gall bladder, and perirenal fat weights, which were influenced by dietary urea levels. Substituting the crude protein from soybean meal for the protein from urea provides a similar performance in sheep consuming deferred buffelgrass.

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Section: Discussionmentioning

confidence: 99%

Substitution of soybean meal for urea in diets based on deferred buffelgrass hay for feedlot sheep

et al. 2018

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“…Protein nutrition plays a key role in ruminant performance because of the low availability of proteins in pastures; a low protein portion in the total diet is one of the main contributors to low animal production performance (ALVES et al, 2009). However, protein foods represent the largest proportion of animal feed costs worldwide (WILKINS;JONES, 2000), and the vast majority of Brazilian nutritionists still suggest expensive sources, including soy bean meal, when formulating diets (MILLEN et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Tropical kudzu as a protein source in sheep diets

et al. 2016

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Protein nutrition plays a key role in ruminant performance and represents the largest proportion of costs in animal feed. The present study evaluated whether the roughage portion of Santa Inês sheep diets could be supplemented with different ratios of tropical kudzu as a protein source and assessed the best inclusion level of tropical kudzu based on digestibility, intake, nitrogen balance and feeding behavior. Twenty rams were evaluated during the 20-day experimental period, and they were fed formulated diets with a roughage portion (60%) consisting of Elephant grass and tropical kudzu, the latter supplemented at different concentrations (0, 25, 50 and 75% on a dry matter basis). Forty percent of the concentrate portion consisted primarily of ground corn and soybean meal adjusted to obtain an isoproteic diet. Chemical and bromatological analyses, as well as, analyses to assess intake, digestibility, nitrogen balance and feeding behavior, were conducted. No statistically significant differences were found (P>0.05) for the intake and digestibility of dry matter (DM), crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), hemicellulose (HEMI), non-fiber carbohydrates (NFC) and total digestible nutrients (TDN) or for the feeding behavior (feeding, rumination and idle times in h/day) and nitrogen balance between the diets studied. Thus, tropical kudzu can be considered a feed alternative to supplementation with prime protein foods (in this case, soybean meal) in sheep diets. Key words: Digestibility. Legume. Pennisetum purpureum. Pueraria phaseoloides. Protein supplementation. ResumoObjetivou-se com o presente estudo avaliar a inclusão na porção volumosa de diferentes porções de puerária como fonte proteica em dietas de ovinos da Raça Santa Inês, determinando a melhor concentração de inclusão de puerária com base na digestibilidade, consumo, balanço de nitrogênio e comportamento ingestivo. Durante os 20 dias do período experimental, foram utilizados 20 ovinos, que receberam dietas formuladas, cuja porção volumosa (60%) foi constituída por capim-Elefante e puerária, incluída em diferentes concentrações (0; 25; 50 e 75% com base na matéria seca). Os 40% da porção concentrada foram constituidos a base de milho moído e farelo de soja ajustados para obtenção de dietas isoprotéicas. Foram realizadas análises químico-bromatológicas, bem como análises para determinação

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Digestion, ruminal metabolism, and feeding behavior of buffaloes fed diets supplemented with soybean oil, whole and raw soybean, and calcium salts of fatty acids

Bulcão

Alba

Carvalho

et al. 2021

Trop Anim Health Prod

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Efeitos de dietas com níveis crescentes de milho no metabolismo ruminal de energia e proteína em bubalinos

Cited by 6 publications

References 13 publications

Substitution of soybean meal for urea in diets based on deferred buffelgrass hay for feedlot sheep

Substitution of soybean meal for urea in diets based on deferred buffelgrass hay for feedlot sheep

Tropical kudzu as a protein source in sheep diets

Digestion, ruminal metabolism, and feeding behavior of buffaloes fed diets supplemented with soybean oil, whole and raw soybean, and calcium salts of fatty acids

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