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| Format: | Artículo científico |
| Langue: | en |
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Academia Brasileira de Ciências
2015
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| Accès en ligne: | https://www.redalyc.org/articulo.oa?id=32743236029 |
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Table des matières:
- Animal performance and carcass characteristics from confined lambs fed on concentrate feed and additives Tayrone F. Prado Aldi F.S. França Maria Lúcia G. Meirinhos Hugo J.M.C. Peron Reginaldo N. Ferreira Leonardo G. Oliveira Daniel S. Corrêa Multidisciplinaria (Ciencias Naturales y Exactas) ovine lysine methionine lysophospholipid Amylolytic enzyme The number of sheep flocks in Brazil is increasing. It is known that lambs must be slaughtered when young for producing quality meat. The current study evaluated the inclusion of protected methionine, protected lysine, lysophospholipid and amylolytic enzymes in a diet to lambs and their effects on weight gain and quantitative carcass traits at slaughtering. Eighty non-castrated male crossbred Dorper x Santa Inês lambs, 20.57 ± 4.33 kg live weight, were used. The feedlot lasted 64 days and 60 animals were slaughtered. There were no differences for live weight, daily feed intake, feed conversion and average daily weight gain at the first 28 days of feedlot. From the 28th day lysophospholipid treatment presented the highest live weight. Lysophospholipid and amylolytic enzyme presented the best performance in average daily gain, followed by protected methionine, control and protected lysine. Lysophospholipid treatment presented higher daily feed intake rates than protected lysine and protected methionine. Feed conversion was lower for amylolytic enzyme and higher for control. No changing in carcass traits was reported due to additives. Better performance may be achieved with feedlot lambs fed on diets with the addition of amylolytic enzyme and lysophospholipid at the finishing phase. 2015 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32743236029 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.87