摘要
应用安格斯肉牛细管冻精改良沿河本地黄牛。经观测：安本F_1牛体型趋向父本、毛色呈显性遗传，多为黑色或黑褐色；平均初生重为20．80±2．63kg，6月龄体重为111．08±5．02kg，12月龄体重为172．91±12．47kg，18月龄体重为229．56±14．67kg，比同龄的沿河本地黄牛分别提高46．99%、43．55%、45．81%和47．79%，差异极显著(P＜0．01)；各月龄阶段的体尺指标均显著高于本地黄牛(P＜0．05)，增长幅度大多在10%～20%之间。结果表明：安格斯肉牛改良沿河本地黄牛、杂种优势明显，能显著改善本地黄牛体形不足的缺陷，安本F_1牛生长发育快，且抗病力强，耐粗饲，适应能力强，是改良山区黄牛的理想肉牛品种，值得推广。
The observations of using frozen semen of Angus beef cattle to improve native Yanhe yellow cattle showed that the conformation of F1 crossbreds of Angus and Yanhe yellow cattle tended to be similar to that of Angus with a dominant inherence of coat color such as black and blackish brown coat, the average birth weight, body weight at 6, 12, 18 month-old of F1 crossbreds were 20. 80±2.63 kg, 111.08±5.02kg, 172. 91±12. 47 kg, 229. 564±14.67 kg, respectively, which was 46.99%, 43. 55%, 45.81%, 47. 79% higher （P〈0. 01） than that of Yanhe yellow cattle at the same ages all body sizes of F1 crossbreds were greater （P〈 0. 05） than that of yellow cattle with the increasing rate ranging from 10% to 20%,the results suggested that the Angus beef cattle demonstrated the ability to improve the conformation and growth performance of Yanhe yellow cattle, F1 crossbreds of Angus and Yanhe yellow cattle exhibited the fast growth, high disease-resistance, low quality forage tolerance and good adaptability, therefore, the Angus beef cattle deserved to be extended to improve the quality of mountainous yellow cattle.
出处
《黄牛杂志》
2005年第6期22-24,共3页
Journal of Yellow Cattle Science
基金
贵州省牛冻配改良项目.黔农通[2002] 05号。
关键词
安格斯肉牛
杂交改良
本地黄牛
Angus beef cattle
Crossbreeding
Yanhe yellow cattle
