摘要
为了更好地利用安格斯牛资源,加快高档肉牛的饲养,我们研究了安格斯牛与不同杂交组合肉牛增重及生长指标变化,利用皮埃蒙特、利木赞和西门塔尔牛的冻精杂交改良安格斯牛,筛选最佳杂交组合。通过试验结果得出:与纯种安格斯犊牛相比,利用皮埃蒙特、利木赞、西门塔尔与安格斯杂交产生的杂交F1代的公母犊牛的初生重,90日龄,120日龄,180日龄的体重和体尺指标均有显著性差异(P<0.05),其中180日龄母犊体重分别为皮杂214.96±14.16 kg,利杂204.30±18.38 kg,西杂211.38±24.09 kg均显著高于纯种安格斯母犊190.17±11.75 kg(P<0.05);180日龄公犊体重分别为皮杂242.79±20.93 kg,利杂234.85±28.89 kg,西杂223.50±23.35 kg均显著的高于纯种安格斯公犊的199.29±2.41 kg。利用皮埃蒙特和安格斯牛品种间杂交效果最好,可显著改善安格斯牛生产性能,这将为提高安格斯牛生产性能、生产优质牛肉提供依据。
To make better use of Angus cattle resources and speed up the breeding of high-grade beef cattle.We studied the changes of weight gain and growth indexes of Angus cattle and different crossbred beef cattle,and improved Angus cattle with Piedmont,Limousin and Simmental frozen semen crosses,and selected the best crossbred combination.Compared with pure Angus calves,there were significant differences in birth weight,body weight and body size of Piemonte,Limousin,Simmental and Angus hybrid F1 calves at 90,120 and 180 days(P<0.05).The weight of 180-day-old female calves was 214.96±14.16 kg in Piemonte,204.30±18.38 kg in Limousin and 211.38±24.09 kg in Simmental,respectively,which were significantly higher than 190.17±11.75 kg in pure Angus calves(P<0.05).The weight of 180-day-old male calves was 242.79±20.93 kg in Piemonte,234.85±28.89 kg in Limousin and 223.50±23.35 kg in Simmental,which are significantly higher than 199.29±2.41 kg for pure-bred Angus calves.The interbreed crossing between Piedmont and Angus cattle has the best effect and can significantly improve the performance of Angus cattle,which will provide a basis for improving the performance of Angus cattle and producing high-quality beef.
作者
杜玮
李红波
周振勇
张金山
崔繁荣
叶志兵
张杨
DU Wei;LI Hong-bo;ZHOU Zhen-yong;ZHANG Jin-shan;CUI Fan-rong;YE Zhi-bing;ZHANG Yang(Xinjiang Academy of Animal Science,Urumqi 830000,China)
出处
《草食家畜》
2022年第4期1-5,共5页
Grass-Feeding Livestock
基金
天山青年计划杰出青年科技人才培养项目“Myostatin成熟肽核酸疫苗的构建及对骨骼肌生长的影响”(2020Q010)
国家肉牛牦牛产业技术体系项目(CARS-37)
新疆自治区重大科技专项“新疆肉牛肉羊高效生产及产品加工技术集成创新与示范”(2021A02003-1)。
关键词
安格斯牛
种间杂交
杂交后代
生产性能
Angus cattle
interspecific hybridization
hybrid offspring
production performance
