Evaluation of Breeding Programs Combining Genomic Information in Chinese Holstein

被引：2
作者：
Chen Jun [1 ]
Wang Ya-chun [1 ]
Zhang Yi [1 ]
Sun Dong-xiao [1 ]
Zhang Sheng-li [1 ]
Zhang Yuan [1 ]
机构：
[1] China Agr Univ, Coll Anim Sci & Technol, Natl Engn Lab Anim Breeding, Key Lab Agr Anim Genet & Breeding, Beijing 100193, Peoples R China
来源：
AGRICULTURAL SCIENCES IN CHINA | 2011年 / 10卷 / 12期
关键词：
Chinese Holstein; genomic selection; progeny-testing program; young sire program; breeding plan; MARKER-ASSISTED SELECTION; DAIRY-CATTLE; EMBRYO-TRANSFER; GENETIC VALUE; SCHEMES; PREDICTION; EFFICIENCY; STRATEGIES; ACCURACY;
D O I：
10.1016/S1671-2927(11)60196-X
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
Current study adopted gene flow theory and selection index method to compare the breeding efficiency of three breeding plans in the Chinese Holstein cattle using ZPLAN software. Simulated conventional progeny-testing program (PT) and young sire program (YS) were compared with breeding program using genomic selection (GS) taking parameters derived from Chinese Holstein breeding system. The results showed that, GS shortened generation interval by 1.5-2.2 years, and increased the genetic progress by 30-50%, comparing to PT and YS, respectively. Economic analysis showed that GS could obtain a higher breeding efficiency, being 119 and 97% higher than that of PT and YS, respectively; and GS was also powerful in improving functional traits with a low heritability. Main factors affecting breeding efficiency in GS were further discussed, including selection intensity, accuracy and the cost of SNP genotyping. Our finding provided references for future designing and implementing GS in Chinese dairy population.
引用
收藏
页码：1949 / 1957
页数：9
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