CAJ | 학술논문

以518头母猪（含杜洛克、长白、大白）为研究对象，以FSHβ基因为候选基因，采用PCR产物直接电泳法检测FSHβ基因位点的多态性。检出3种基因型，分剐为AA、AB、BB基因型。将基因座不同基因型与总产仔数和产活仔数进行关联分析，结果表明．FSHβ基因在杜洛克、长白猪、大白猪中主要以胎基因型形式存在，曰基因频率分别为96．67％、73．36％和86．01％．但对产仔数影响不显著（P〉0．05）。不同基因型的猪头胎产仔数差异不显著（P〉0．05），不同基因型对总产仔数的影响差异不显著（P〉0．05）。总体而言，FSHβ基因在该位点的多态性与这3个猪种的头胎产仔数、总产仔数均无显著联系。
이518두모저（함두락극、장백、대백）위연구대상，이FSHβ기인위후선기인，채용PCR산물직접전영법검측FSHβ기인위점적다태성。검출3충기인형，분과위AA、AB、BB기인형。장기인좌불동기인형여총산자수화산활자수진행관련분석，결과표명．FSHβ기인재두락극、장백저、대백저중주요이태기인형형식존재，왈기인빈솔분별위96．67％、73．36％화86．01％．단대산자수영향불현저（P〉0．05）。불동기인형적저두태산자수차이불현저（P〉0．05），불동기인형대총산자수적영향차이불현저（P〉0．05）。총체이언，FSHβ기인재해위점적다태성여저3개저충적두태산자수、총산자수균무현저련계。
Using FSHβ gene as the candidate gene, taking 518 sows （Duroc,Landrace,Yorkshire）as the research objects, the polymorphism of FSHβ gene sites was detected by electrophoresis of PCR products. Three genotypes were detected as AA ,A B,BB. The correlations between the genotypes of gene locus and total litter size, live litter size were analyzed. The results showed that the main genotype of FSHβ gene in Duroc ,Landrace and Yorkshire was BB genotype and the gene frequency of B in these three pig species were 96.67%, 73.36% and 86.01% respectively, but it had no significant effect on the litter size （P 〉0.05）. The first-born litter size of these three pig species with different genotypes had no significant difference （P〉0.05）. The effect of different genotypes on the total litter size had no significant difference （P 〉0.05）. In conclusion, the polymorphisms of FSHβ gene site had no significant correlation with the first- born litter size and total litter size of these three pig species.