摘要
在以双肌臀大约克猪纯繁(双×双)为对照的长×双、双×长、双×杜、杜×双等二元杂交试验的基础上,以双肌臀大约克猪纯繁为对照,又测定了杜×长双、杜×双长、长×双长、双×长双三元或二元级进组合的肥育性能及胴体品质。结果表明,杜×长双组合在日增重(860.74 g)、饲料报酬(2.87:1)等主要指标上优于其它杂交组合,且瘦肉率高(68.96%)、胴体品质优良,是一个理想的外三元优势杂交组合。试验还表明,双肌臀大约克猪产仔多(12.00头)、增重较快(792.21 g)、瘦肉率较高68.30%,适应性强。
In this experiment, the fattening performance and carcass quality of the five crossbreeding combinations which were Duroc （♂） × [ Landrance （ ♂ ）× Yorkshire（ ♀） ], Daroc （ ♂ ） × [ Yorkshire（ ♂ ） × Landrance （ ♀ ） ],Yorkshire （ ♂ ） × [ Yorkshire （ ♂ ） × Yorkshire （ ♀ ） ], Landrance （ ♂ ） ×[ Yorkshire （ ♀ ） × Landrance （ ♀ ） ], Yorkshire （ ♂ ） × [ Landrance （ ♂ ） × Yorkshire （ ♀ ） ] were determined. The results indicated that the cross-breeding combination of Duroc （ ♂ ） × [ Landrance （ ♂ ） ×Yorkshire （ ♀ ） ] is superior to the others in the main indexes such as daily gain（860.74g）,ratio of feed to meat （2.87：1）. This combination also had high lean meat percentage （68.96%）and fine carcass quality. It was considered as the best three-way cross-breeding combination. The result of this experiment also indicated that the Canadian Yorkshire had the advantages of high productivity, quick daily gain, high lean meat percentage and good adaptability.
出处
《家畜生态学报》
2006年第5期15-19,共5页
Journal of Domestic Animal Ecology
基金
湖南省科技厅"加系双肌臀大约克杂交猪产业化研究"(99NKY1013-03)
关键词
大约克猪
三元杂交
肥育性能
胴体品质
Yorshire
cross-breeding combination
fattening performance
carcass quality.
