摘要
对保持金华猪的优良特性和提高金华楮的胴体瘦肉率提出了母猪群每年更新2/3的模式,使每头母猪都可以有效地进行繁殖性能测定和后裔肥育胴体性能测定;对青年种猪的选择则提出了在每一个体体重达45kg时测定其背膘厚和日增重,以提高选种的准确性。核心群经过“七五”期间的选育,胴体瘦肉率从46.25％提高到51.47％,这表明把金华猪改造成瘦肉型猪种是完全可能的。
In order to keep the good character and increase the lean-meat percentage of Jinhua pig.the sow-herd is proposed to be renewed twice in every three year,and every sow be tested effectively for its breeding pi-no. ,,.ance and finishing ability of its descendents. The authors have also advanced the idea that for selection of the young seed swine the daily gain and the back fat thickness of the swine should be determined to raise the accuracy of the breeding selection when it weights 45 kg. The carcass lean-meat percentage of the neuclear group has been raised from 46. 25% to 51. 47% through the selection breeding during the seventh 5-year plan period demonstrating the complete possibility of transforming Jinhua pig into a lean-meat one.
基金
浙江省科委"八五"重点课题
关键词
金华猪
瘦肉率
选择
育种
Jinhua pig
lean-meat percentage
selection breeding
selection
