中国畜牧杂志2018，Vol.54Issue(1)：120-124,5.DOI:10.19556/j.0258-7033.2018-01-120
饲喂模式对生长育肥猪胴体品质和脂质代谢的影响
Effects of Feeding Schedule on Carcass Quality and Lipid Metabolism in Growing-finishing Pigs
摘要
Abstract
The objective of the present study was to study the effects of feeding schedule on growth performance,carcass quality and lipid metabolism of growing-finishing pigs.A total of 48 growing-finishing pigs (initial BW 61.4 ± 2.5 kg) were assigned to one of the 2 feeding schedule (had free access to diet and restricted meal frequency) in a randomized complete block design.Pigs had free access (FA) to diet were fed on an ad libitum basis and restricted meal frequency (RMF) group were fed twice daily during the 8-weeks experimental period.There were 8 replicates per treatment group with 3 pigs per replicate.The results showed that the RMF fed pigs had lower average daily feed intake,average daily gain,carcass weight,dressing percentage and average backfat thickness than that for pigs had free access to feed (P＜0.05).There were no effects of feeding schedule on meat quality traits (P＞0.1).The activities of malic enzyme and fatty acid synthase were lower in RMF fed pigs compared with pigs had free access to diet (P＜0.05).In addition,the RMF fed pigs had lower mRNA expression levels of fatty acid synthase and peroxisome proliferator-activated receptorγ than pigs had free access to diet(P＜0.05).In summary,the RMF feeding regime decreases the growth performance,dressing percentage and lipid deposition,but has no effect on meat quality of growing-finishing pigs.The RMF feeding regime decreases lipid deposition by decreasing lipogenesis.关键词
猪/饲养模式/胴体品质/脂质代谢Key words
Pigs/Feeding schedule/Carcass quality/Lipid metabolism分类
农业科技引用本文复制引用
曹山川,朱思源,吕钱义,邓富丽,苟兴能,刘静波..饲喂模式对生长育肥猪胴体品质和脂质代谢的影响[J].中国畜牧杂志,2018,54(1):120-124,5.基金项目
四川省教育厅资助科研项目(17ZA0413) （17ZA0413）
四川省科技厅应用基础研究项目(18YYJC0933) （18YYJC0933）
