Michao Deng, Zijian Qiu, Chenxi Liu, Lijing Zhong, Xinfeng Fan, Yuquan Han, Ran Wang, Pinghua Li, Ruihua Huang, Qingbo Zhao
Teat number (TNUM) is an important reproductive trait of sows, which affects the weaning survival rate of piglets. In this study, 1166 Dutch Large White pigs with TNUM phenotype were used as the research object. These pigs were genotyped by 50K SNP chip and the chip data were further imputed to the resequencing level. The estimated heritabilities of left teat number (LTN), right teat number (RTN) and total teat number (TTN) were 0.21, 0.19 and 0.3, respectively. Based on chip data, significant SNPs for RTN on SSC2, SSC5, SSC9 and SSC13 were identified using genome-wide association analysis (GWAS)...
January 8, 2024: Animal Genetics