The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit
later.
We apologize for any inconvenience caused
jin jiao dui mu zuo niu fan zhi xing neng ying xiang de chu bu yan jiu
Author(s): Chen Youkang, Huang Huaizhao, Yuan Youqing Liu Bin, Tang Maoling, Shanlang Erjiaand Gan Jiyen Southwest Nationalities College Chengdu, P. R. China, 610041
Pages: 14-
17
Year: 1994
Issue:
2
Journal: China Yak
Keyword: 母牦牛; 繁殖性能; 近交;
Abstract: 70头母牦牛繁殖性能的分析结果表明,近交系数的急剧上升,使母牦牛繁殖性能出现明显衰退。当近交系数从0上升到0.125和0.250时。犊牦牛的成活率从93.5%下降到66.7和60.0%;设0世代的近交系数为0,一世代和二世代则为0.108和0.188,0世代和一世代的胎次间隔、犊牦牛成活率、繁活率分别为1.82和2.61年、93.89和81.11%、53.31和34.91%。二世代初产年龄明显晚於一世代。
Citations
No citation found
Related Articles
No related articles found