搜索结果: 1-1 共查到“家畜饲养管理学 breeders”相关记录1条 . 查询时间(0.546 秒)
Reproductive Performance of F1 Pekin Duck Breeders Selected with Ultrasound Scanning for Breast Muscle Thickness and the Effect of Selection on F2 Growth and Muscle Measurement
breast muscle ultrasound breeders egg weight fertility hatchability
2010/11/12
A study was conducted to assess the effect of selection for breast muscle thickness in Pekin
ducks on reproduction of F1 and growth performance of the resulting progeny. At 7 and 23 wk of age, the li...