Genetic improvement through complete restricted selection indices in Surti buffalo

被引：0
|
作者：
Tailor, SP [1 ]
Pathodiya, OP [1 ]
Singh, B [1 ]
机构：
[1] Livestock Res Stn Vallabhnagar, Buffalo Project, Udaipur 313601, Rajasthan, India
来源：
INDIAN JOURNAL OF ANIMAL SCIENCES | 2000年 / 70卷 / 06期
关键词：
complete restricted selection indices; genetic improvement;
D O I：
暂无
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
First lactation records of 507 Surti buffaloes, sired by 41 bulls, maintained at Buffalo Project, Livestock Research Station, Vallabhnagar (Rajasthan) were utilized to develop multi-trait selection indices. Ten complete restricted selection indices (RI1 to RI10) were developed by imposing single or 2 trait restrictions on AFC, FSP, FLL and FCI. The index coefficients (b(i)), expected genetic gain in each trait (G(i)), correlation between index and breeding value (R-1H) acid aggregate genetic gain (Delta H) were compared and it was observed that the complete restriction on FCI would be the most appropriate for genetic improvement. This would produce a desirable genetic change in FLMY (5.5686 kg), AFC (-31.0264 days), FDP (-0.0651 days), FPY (0.0325 kg) and FSP (-0.2024 days).
引用
收藏
页码：613 / 615
页数：3
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