Estimation of genetic, phenotypic and environmental trends for production and reproduction traits in a flock of Corriedale sheep

被引：0
|
作者：
Baba, M. A. [1 ]
Ganai, T. A. S. [1 ]
Rather, M. A. [1 ]
Hamadani, A. [1 ]
Shanaz, S. [1 ]
Alam, Safeer [1 ]
Khan, Nusrat N. [1 ]
机构：
[1] Sher E Kashmir Univ Agr Sci & Technol Kashmir, Srinagar 190006, Jammu & Kashmir, India
来源：
INDIAN JOURNAL OF ANIMAL SCIENCES | 2020年 / 90卷 / 06期
关键词：
Corriedale; Environmental trends; Genetic-trends; Phenotypic trend; Sheep; Traits; WOOL TRAITS; SELECTION;
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：
The aim of the present study was to estimate genetic, phenotypic and environmental trends for birth weight (BW), weaning weight (WW), six months body weight (W6), yearling body weight (W12) and age at first lambing (AFL). The genetic trends (gm), respectively, for BW. WW, W6 and W12 were 8, 44.22, 8.05 and 29.45 whereas for AFL it was -0.03 (day/year). The phenotypic trends (gm), respectively for BW. WW, W6 and W12 were -1.3, 36.06, -30.77 and 32.90 whereas for AFL it was 4.39 (day/year). The environmental trends (gm / year) respectively for BW, WW, W6, W12 were -9.3, -8.2. -38.83 and 3.45 whereas for AFL it was -4.36 (day/year). Positive and statistically significant genetic trends were recorded for all studied body weight traits whereas for AFL it was non-significant. Phenotypic trends for all the traits under study were statistically non-significant.
引用
收藏
页码：890 / 892
页数：3
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