PIC猪椎体数量增加对胴体重量的影响。

Effects of increased vertebral number on carcass weight in PIC pigs.

作者信息

Huang Jieping, Zhang Mingming, Ye Runqing, Ma Yun, Lei Chuzhao

机构信息

College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China.

College of Life Science, Xinyang Normal University, Xinyang, Henan, China.

出版信息

Anim Sci J. 2017 Dec;88(12):2057-2062. doi: 10.1111/asj.12881. Epub 2017 Aug 4.

DOI:10.1111/asj.12881

PMID:28776879

Abstract

Variation of the vertebral number is associated with carcass traits in pigs. However, results from different populations do not match well with others, especially for carcass weight. Therefore, effects of increased vertebral number on carcass weight were investigated by analyzing the relationship between two loci multi-vertebra causal loci (NR6A1 g.748 C > T and VRTN g.20311_20312ins291) and carcass weight in PIC pigs. Results from the association study between vertebral number and carcass weight showed that increased thoracic number had negative effects on carcass weight, but the results were not statistically significant. Further, VRTN Ins/Ins genotype increased more than one thoracic than that of Wt/Wt genotype on average in this PIC population. Meanwhile, there was a significant negative effect of VRTN Ins on carcass weight (P < 0.05). Thus, our results suggested negative effect of increased thoracic number on carcass weight in PIC pigs.

摘要

猪的脊椎骨数量变异与胴体性状相关。然而，不同群体的研究结果之间并不十分吻合，尤其是在胴体重量方面。因此，通过分析两个多位点多脊椎因果位点（NR6A1 g.748 C>T和VRTN g.20311_20312ins291）与PIC猪胴体重量之间的关系，研究了脊椎骨数量增加对胴体重量的影响。脊椎骨数量与胴体重量的关联研究结果表明，胸椎数量增加对胴体重量有负面影响，但结果无统计学意义。此外，在该PIC群体中，VRTN Ins/Ins基因型的猪平均比Wt/Wt基因型的猪多一个以上胸椎。同时，VRTN Ins对胴体重量有显著负面影响（P<0.05）。因此，我们的结果表明PIC猪胸椎数量增加对胴体重量有负面影响。