<b>Characteristics and yields of carcass and cuts in Santa Ines sheep fed with different concentrations of metabolizable energy</b> - doi: 10.4025/actascianimsci.v32i4.9684

  • Elzânia Sales Pereira Universidade Federal do Ceará
  • Patrícia Guimarães Pimentel Universidade Federal do Ceará
  • Rildson Melo Fontenele Universidade Federal do Ceará
  • Ariosvaldo Nunes de Medeiros Universidade Federal da Paraiba
  • José Gilson Louzada Regadas Filho Universidade Federal de Viçosa
  • Arturo Bernardo Selaive Villarroel Universidade Federal do Ceará
DOI: https://doi.org/10.4025/actascianimsci.v32i4.9684
Keywords: Concentrate, primal cuts, small ruminants, roughage

Abstract

This study evaluated the weight gain (ADG), feed conversion (FC), feed efficiency (FE), characteristics of carcass and retail cuts of Santa Inês sheep fed different levels of metabolizable energy (2.08, 2.28, 2.47 and 2.69 Mcal kg-1 of DM). Twenty lambs, with age and mean body weight of 50 days and 13 ± 0.56 kg, respectively, were distributed in randomized block design with five replications. We verified a linear increase effect (p < 0.05) on the ADG. The loss at fasting, FC, FE, hot and cold carcass dressing, as well as the weight loss by cooling were not affected (p > 0.05) by the energy levels of the rations. Nevertheless, the weights of hot and cold carcass and theempty body , expressed in kg, presented quadratic effect (p < 0.05), as we increase the levels of metabolizable energy in experimental diets. The energy levels influenced the yield of rib and shoulder, as the loin eye area (p < 0.05). In conclusion, the manipulation of the energy level of the ration changes the ADG, the hot and cold carcass weight, the shoulder yield, the rib weight and the loin eye area of Santa Ines sheep.

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Author Biographies

Patrícia Guimarães Pimentel, Universidade Federal do Ceará
Possui graduação em Agronomia pela Universidade Federal do Ceará (1999) e Mestrado em Zootecnia pela Universidade Federal do Ceará (2002). Defendeu tese de Doutorado em Zootecnia pela UFMG (2007). Tem experiência na área de Zootecnia, com ênfase em Avaliação de Alimentos para Animais, atuando principalmente nos seguintes temas: produção de leite, castanha de caju, nutrição animal, semi-árido e avaliação de subprodutos. Atualmente bolsista DCR (Funcap-CNPq) no Departamento de Zootecnia da UFC.
Ariosvaldo Nunes de Medeiros, Universidade Federal da Paraiba
Dpto de zootecnia
Published
2010-10-22
How to Cite
Pereira, E. S., Pimentel, P. G., Fontenele, R. M., Medeiros, A. N. de, Regadas Filho, J. G. L., & Villarroel, A. B. S. (2010). <b>Characteristics and yields of carcass and cuts in Santa Ines sheep fed with different concentrations of metabolizable energy</b&gt; - doi: 10.4025/actascianimsci.v32i4.9684. Acta Scientiarum. Animal Sciences, 32(4), 431-437. https://doi.org/10.4025/actascianimsci.v32i4.9684
Issue
Vol 32 No 4 (2010)
Section
Animal Production

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