RESPONSE TO SELECTION ON BLUP OF BREEDING VALUES IN THE GROOTFONTEIN MERINO STUD

被引：0
|
作者：
OLIVIER, JJ [1 ]
ERASMUS, GJ [1 ]
VANWYK, JB [1 ]
KONSTANTINOV, KV [1 ]
机构：
[1] UNIV ORANGE FREE STATE,DEPT ANIM SCI,BLOEMFONTEIN 9300,SOUTH AFRICA
来源：
SOUTH AFRICAN JOURNAL OF ANIMAL SCIENCE-SUID-AFRIKAANSE TYDSKRIF VIR VEEKUNDE | 1995年 / 25卷 / 01期
关键词：
BREEDING VALUES; GENETIC TRENDS; MERINO SHEEP; SELECTION RESPONSE;
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：
A study was conducted to estimate the response to selection on BLUP of breeding values for mature body weight (BW), clean fleece weight (CFW) and mean fibre diameter (MFD) in a commercial Merino stud with a high culling rate on visual appraisal. The selection policy was to increase BW, decrease MFD and maintain CFW. The observed annual trends were +0.63 kg for BW, -0.16 mu m for MFD and zero for CFW over a period of seven years. It is concluded that selection on BLUP of breeding values can lead to a marked increase in genetic progress in spite of the limitations posed by high culling rates on visual appearance.
引用
收藏
页码：13 / 15
页数：3
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