Effect of frame size on performance and carcass traits of Santa Inês lambs finished in a feedlot

Revista Brasileira de Zootecnia

关键词: carcass conformation;    commercial cuts;    dry matter intake;    sheep;    tissue composition;    weight gain;   

DOI  :  

来源: DOAJ

【 摘 要 】

The objective of this study was to evaluate the performance, qualitative, morphometric and quantitative carcass traits of Santa Inês lambs of different frame sizes finished in a feedlot. Twenty 120-day-old intact lambs with a 25.0±3.1 kg average body weight at the beginning of the experiment were used. Lambs received a diet containing 17% crude protein and 2.70 Mcal/kg dry matter. Frame size influenced performance and tissue composition in the carcasses of the lambs. Lambs with large frame sizes showed better carcass conformation compared with those of medium-sized frames. Frame size was found to have a significant effect on rump perimeter. Large-framed lambs showed higher compactness on the carcass index and carcass dressing area compared with medium-framed lambs. The cuts of large-framed lambs weighed more than those of mediumframed lambs. However, no significant differences were found in dressing.

【 授权许可】

Unknown