期刊
MEAT SCIENCE
卷 72, 期 1, 页码 91-99出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2005.06.006
关键词
slaughter weight; growth rate; sex; carcass quality; meat quality; pigs
Three hundred and forty (340) Duroc x (Landrace x Yorkshire) crossbred piglets were allotted to a 2 x 2 x 3 factorial design experiment. The independent variables were the growth rate (fast: around -10 days at 100 kg and slow: around +2 days at 100 kg), based on two different EBV's (estimated breeding value) of the sire-line for age, the sex (barrows and gilts) and the live weight at slaughter (107, 115 and 125 kg). A sub-population of 119 pigs (10 carcasses per treatment) was selected for the carcass and meat quality evaluation trials. As live weight increased there were significant increases in hot carcass weight and dressing percentage (P < 0.05). Lean, fat and bone proportions were not affected by weight. Gilts had higher lean proportion (P < 0.05) than barrows. Furthermore, carcasses of fast growing pigs were fatter (P < 0.05) than those of slower growing ones. Loin muscle pH, drip loss and reflectance values did not vary significantly with any of the treatments. Intramuscular fat was higher in barrows (P < 0.05) than in gilts and soluble collagen content decreased with increasing weight (P < 0.05). Muscle protein (%) increased (P < 0.05) from 107 to 115 kg and gilts had a higher (P < 0.05) content than castrates. No evidence was found that increasing slaughter weight detracts from carcass characteristics or meat quality. (c) 2005 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据