THE RELATIONSHIP BETWEEN PROGENY PERFORMANCE AND SIRE EXPECTED PROGENY DIFFERENCES FOR CENTRAL TEST POSTWEANING GAIN

被引：2
|
作者：
KEMP, RA
SULLIVAN, PG
机构：
[1] ONTARIO MINIST AGR & FOOD,GUELPH,ON N1H 6N1,CANADA
[2] UNIV GUELPH,DEPT ANIM & POULTRY SCI,CTR GENET IMPROVEMENT LIVESTOCK,GUELPH,ON N1G 2W1,CANADA
来源：
CANADIAN JOURNAL OF ANIMAL SCIENCE | 1995年 / 75卷 / 01期
关键词：
CENTRAL TEST; SIRE EXPECTED PROGENY DIFFERENCE; PROGENY PERFORMANCE;
D O I：
10.4141/cjas95-023
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
On-farm records (84770) were available to evaluate the relationship between BW and WW with sires' expected progeny difference for central test postweaning gain, both within (EPD) and across (ABC) breeds. Regression coefficients for BW and WW on sire ABC were 0.03 +/- 0.01 and 0.25 +/- 0.05, respectively. For EPDs, coefficients for BW and WW were either positive (P < 0.05) or not different from zero (P < 0.13) for all breeds. Young sire selection based on central test postweaning gain ABC can be used to change progeny BW and WW.
引用
收藏
页码：169 / 171
页数：3
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