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首页> 外文期刊>Livestock Science >Association of polymorphism in the alpha (1,2) fucosyltransferase gene with growth performance in two Western pig breeds in Taiwan.
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Association of polymorphism in the alpha (1,2) fucosyltransferase gene with growth performance in two Western pig breeds in Taiwan.

机译：在台湾的两个西方猪品种中，α（1,2）岩藻糖基转移酶基因的多态性与生长性能的关联。

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摘要

The mutation at 307 bp (M307) of the alpha (1,2) fucosyltransferase gene has been proposed as being a marker for selection of E. coli F18 adhesion-resistant pigs. Nonetheless, exactly how this mutation affects pigs' growth performance remains unclear. This study investigated genotypic frequencies and the effect of M307 and the ryanodine receptor (RYR1) on the growth performance of two major Western pig breeds in Taiwan. In total, 1510 (1024 Duroc and 486 Landrace) boars were performance tested using segregated early weaning entrance. The genotypes of M307 and RYR1 were determined by polymerase chain reaction-based restriction fragment length polymorphism. The performance traits included average daily gain, the feed conversion ratio, backfat thickness, and age at 110 kg of body weight. The statistical model included starting age, test season, genotype of M307, genotype of RYR1, and two- and three-way interactions. The data were analyzed within breeds. Consequently, the genotypic frequencies of the AA genotype in M307 were 0.06 and 0.06, and of the GG genotype were 0.53 and 0.64 in Duroc and Landrace pigs, respectively. The genotypic frequencies of the NN genotype in RYR1 were 0.75 and 0.99, and of the nn genotype were 0.01 and 0.00 in Duroc and Landrace pigs, respectively. There was no significant effect of the M307 genotype on the growth performance in either Duroc or Landrace breeds. However, the RYR1 significantly influenced the average daily gain and age at 110 kg of body weight of Duroc pigs. The results suggest that selection of the favorable AA genotype at M307 for E. coli F18 adhesion resistance may not affect the growth performance traits in Duroc and Landrace pigs. However, the effect of the RYR1 on growth performance should be monitored during selection.
机译：有人提出α（1,2）岩藻糖基转移酶基因在307 bp（M307）处的突变是选择大肠杆菌F18耐粘附猪的标志。尽管如此，这种突变如何影响猪的生​​长性能还不清楚。这项研究调查了基因型频率以及M307和ryanodine受体（RYR1）对台湾两个主要西方猪品种的生长性能的影响。总共使用隔离的早期断奶入口对1510头（1024杜洛克和486种长公）公猪进行了性能测试。 M307和RYR1的基因型是通过基于聚合酶链反应的限制性片段长度多态性确定的。性能特征包括平均日增重，饲料转化率，背脂肪厚度和体重110公斤时的年龄。统计模型包括起始年龄，试验季节，M307基因型，RYR1基因型以及双向和三向相互作用。在品种内分析数据。因此，在杜洛克和长白猪中，M307中AA基因型的基因型频率分别为0.06和0.06，而GG基因型的基因型频率分别为0.53和0.64。在杜洛克和长白猪中，RYR1中NN基因型的基因型频率分别为0.75和0.99，而nn基因型的基因型频率分别为0.01和0.00。在杜洛克或长白品种中，M307基因型对生长性能没有显着影响。但是，RYR1显着影响了杜洛克猪的110公斤体重的平均日增重和年龄。结果表明，对于大肠杆菌F18粘附力，在M307处选择有利的AA基因型可能不会影响Duroc和Landrace猪的生长性能。但是，在选择过程中应监控RYR1对生长性能的影响。

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