Genotype x environment interactions for growth andbackfat thickness traits in Yorkshire and Landrace pigs

Journal of Livestock Science

article

N.H. Tinh¹  N.T. Linh²  A.P.N. Bui³ 

[1] Institute of Animal Sciences for Southern Vietnam;School of Agriculture and Aquaculture, Tra Vinh University, 126 Nguyen Thien Thanh, Hamlet 4, Ward 4, Tra Vinh City, Tra Vinh Province;Institute of Applied Technology, Thu Dau Mot University, Binh Duong province

关键词: genetic correlation;    GxE interaction;    production traits;    pigs;    Yorkshire;    Landrace;   

DOI  :  10.33259/JLivestSci.2021.229-232

学科分类：农业科学（综合）

来源: Journal of Livestock Science

【 摘 要 】

Genotype by environment interactions (GxE) may reduce the response of performance traits.The aim of this study isto estimate the genetic correlation of the same traits between two genetically linked of Binh Thang farm and Dong Afarm. The total of 10 boars, 15 gilts and 442 semen dozes of Yorkshire and Landrace boars had been exchangedbetween two farms from 2000 to 2007. Records of individual performance test were obtained from 881 Landraceand 652 Yorkshire pigs in Binh Thang farm, and 835 Landrace and 1326 Yorkshire pigs in Dong A farm.Measurements were adjusted to days to 90 kg (D90) and backfat (mm) at 90 kg liveweight (BF90) referred on therecommendations of NSIF (2002). For Landrace pigs, genetic correlations of the same trait between twoenvironments estimated using REML (restricted maximum likelihood) method in VCE5 software were 0.51 and0.63 for D90 and BF90 traits, respectively. For Yorkshire pigs, these values were higher, 0.93 for D90 and 0.99 forBF90, respectively. Thus, the evidence of genotype by environment interactions was found in Landrace pigs formeasured traits D90 and BF90, while this was not presented in Yorkshire pigs. This means the adaptation toalternative environments in Yorkshire pigs is better than in Landrace pigs.

【 授权许可】

Unknown