藏猪及不同杂交组合肥育与胴体性能研究

Investigation on fattening and carcass traits in Tibetan pig and its combinations

选用藏猪(Z)、成华猪(C)、杜洛克猪(D)、皮特兰猪(P)为杂交亲本,设置纯种ZZ及ZC、CZ、DZ、DCZ、DZC、PZC、PCZ等8个杂交组合,每组合选择8头,共测定64头试猪的肥育性能、胴体性能和肉质性能。结果表明:PCZ、PZC组合的日增重高、耗料指数低、达90 kg日龄短、瘦肉率高,而肉色和肌内脂肪含量较差;DZC、DCZ组合的肥育性能和胴体性能略低于PCZ、PZC组合,而肉色和肌内脂肪含量较高,肉质较好,是本次测定中较理想的组合。

Four pig breeds including Tibetan Pig,Chenghua Pig,Duroc and Pietlan were chosen,and 8 combinations（ZZ,ZC,CZ,DZ,DCZ,DZC,PZC ＆ PCZ） were set in present study.Fattening and carcass performances of 64 pigs（8 heads from each combination） were measured.The results showed that PCZ and PZC had higher average daily gain,feed conversion rate,growth rate and lean meat percentage,but poorer color scoring and lower intramuscular fat content（IMF）.Although the fattening and carcass performances of DCZ ＆ DZC were a little lower than that of PCZ ＆ PZC,the latter had better color scoring and higher IMF,DCZ ＆ DZC were better combinations in the study.