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| Koscheck,Jefferson Fabiano Werner; Zervoudakis,Joanis Tilemahos; Hatamoto Zervoudakis,Luciana Keiko; Cabral,Luciano da Silva; Oliveira,André Alves de; Benatti,João Marcos Beltrame; Carvalho,Daniel Marino Guedes de; Silva,Renata Pereira da. |
| The objective of this study was to evaluate the effects of total digestible nutrient (TDN) levels in supplements on rumen pH, ruminal ammonia nitrogen concentration, intake and digestibility, nitrogen balance and microbial efficiency in beef cattle grazing on Marandu grass during the rainy season. The supplements comprised a mineral mixture, ground corn grain, soybean hulls, roasted soybeans and urea:ammonium sulfate. The mineral mix (MM) and supplements were supplied at 800, 1,600 and 2,400 g/animal/day, contained 500, 1,000 and 1,500 g of TDN, respectively, and were termed S500, S1000 and S1500. Supplemental crude protein (CP) was fixed at 300g animal/day for all supplementing strategies. Four crossbred rumen-fistulated steers, with an average weight of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibility; Intake; Ruminant; Synthesis of microbial protein. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001100006 |
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| Figueiredo,Darcilene Maria de; Paulino,Mário Fonseca; Sales,Maykel Frankiln Lima; Valadares Filho,Sebastião de Campos; Detmann,Edenio; Barros,Lívia Vieira de. |
| The objective was to evaluate the effect of four levels of ground corn supply on nutritional parameters, microbial synthesis efficiency and growing performance of beef heifers, at the rainy season. For such, 28 crossbred yearling heifers, with initial age of 16-17 months and initial weight of 255 ± 31.0 kg were distributed into five paddoks of B. decumbens, of 2.0 ha each, with average potentially digestible DM availability of 2,377.0 kg/ha. For each one of the lots, one of the following supplements was daily supplied: mineral mix exclusively or with ground corn at levels 0.25, 0.50, 0.75 or 1.00 kg/day. The experiment was arranged in completely randomized design with five treatments (supplements), five repetitions for the groups receiving exclusive... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Females; Nutritional parameters; Supplementation; Synthesis of microbial protein; Weight gain. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100034 |
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