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| Mynhardt,Herman; Niekerk,Willem Adriaan Van; Erasmus,Lourens Johannes; Hassen,Abubeker; Coertze,Roelf Johannes. |
| ABSTRACT The aim of the present study was to determine whether sunflower meal (SFM), a highly rumen degradable protein (RDP) source, can be substituted with non-protein nitrogen (NPN, urea) without impacting negatively on intake, digestibility, rumen fermentation and microbial nitrogen (N) synthesis (MNS) in wethers consuming low quality Eragrostis curvula hay. Five wethers were fed ad libitum, low quality hay and supplemented twice-daily in equal proportions, via the rumen cannulae, one of five iso-nitrogenous and iso-energetic supplements in a 5 × 5 Latin square design experiment. The supplements differed in the ratios of rumen degradable N (RDN) supplied by either SFM and/or urea and is presented as percentage of RDN supplied by urea: T0 (100 % SFM, 0 %... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Low quality roughage; Rumen ammonia; Microbial synthesis. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000600498 |
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| SALES, M. F. L.; PAULINO, M. F.; VALADARES FILHO, S. de C.; FIGUEIREDO, D. M. de; PORTO, M. O.; DETMANN, E.. |
| The objective of this experiment was to study the effects of different levels of supplementation on the performance, intake, digestibility, pH and rumen ammonia concentration in growing bulls grazing Brachiaria decumbens Stapf. pasture, during the dry-rainy transition season. For evaluation of performance, intake and digestibility, it was used 25 non-castrated steers at 11 months of age and initial average body weight of 270 kg, grouped in five plots of five animals each, following a completely randomized design. Each plot received one of the following feeding treatments: mineral mixture and supplement at the proportion of 0.5, 1.0, 1.5 and 2.0 kg/animal/day, corresponding to 0.18, 0.36, 0.54 and 0.72% of the average body weight of the animals. The area... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Amônia ruminal; Rumen ammonia; Amoníaco ruminal; Dry-rainy transition season; Transição seca-águas; Gado de corte; Gado Zebu; Novilho de corte; Nutrição animal; Ganho de peso; Suplemento alimentar; Pastagem; Gramínea forrageira; Capim Brachiaria; Brachiaria decumbens; Digestibilidade; Performance; Consumo alimentar; Ph; Amônia; Beef cattle; Zebu; Calves; Animal nutrition; Cattle feeding; Dietary supplements; Pastures; Forage grasses; Urochloa decumbens; Digestibility; Growth performance; Ganado de carne; Alimentación de ganado; Cebú; Terneros; Nutrición animal; Suplementos dietéticos; Pastizales; Pastos forrajeros; Digestibilidad; Desempeño del crecimiento. |
| Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/902545 |
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