Nellore: an interesting option to produce meat quality / Nelore: Uma interessante opção para produzir carne de qualidade
Conte Hadlich, Janaina; Carlos Silveira, Antonio; Carlos Vieira Júnior, Luiz; Gabriela Berchiol da Silva, Marina; Abdallah Curi, Rogério; Artur Loyola Chardulo, Luis.
B. Indústr. Anim.;
69: 13-13, 2012.
Artigo
em Português
| VETINDEX
| ID: vti-467352
Resumo
Brazil has the largest commercial herd of beef cattle and is among the major producers of beef. The Brazilian herd consists largely of Nellore cattle, this breed is labeled as a producer of meat without quality, mainly because of the tenderness is the most valued trait in beef. The objective of this study was to evaluate some characteristics related to meat quality in Nellore cattle. The experiment was conducted at the feedlot sector of the Department of Melhoramento e Nutrição Animal (FMVZ). Uncastrated calves of Nellore breed (n = 15), produced as recommended by the Superprecoce young beef cattle system, were utilized. The animals were submitted to feedlot at the 7 months of age and slaughtered between 12 and 15 months. The animals were fed a high-energy diet, having average daily gain of 1.4 kg, to explore the best of the growth phase. The animals were slaughtered with an average of 435 kg (14.5 @), and showed carcass yield of 57.5% and back fat thickness of 3.2 mm. After slaughter, the carcasses were cooled for 24 hours, and samples from Longissimus muscle were removed of the region between the 12th and 13th ribs. One sample was frozen and the other two samples were aged for 7 and 14 days, respectively. The efficiency of the aging process on the beef tenderness was evaluated through the shear force analysis (SF) and myofibrillar fragmentation index (MFI). Carcass yield waês.
Biblioteca responsável:
BR68.1
Texto completo