Detection of Major Gene FecB for Multiple Lambs in Sheep from Different Groups
In order to study the distribution of FecB gene in different sheep groups and its impact on litter size,TaqMan probes method was used to detect FecB genotype of 27 774 sheep from different groups.Combining the lambing data of the first three litters of 12 304 individuals,the important role of the multi-lamb major gene FecB in improving sheep fertility was explored.The typing results showed that the Hu sheep population contained the highest B allele frequency,reaching more than 0.90,and the B allele frequency also increased as the Hu sheep blood content in the population increased.There were extremely significant differences(P＜0.01)in the number of lambs produced by Hu sheep,Pishan Red sheep,Hu sheep hybrid sheep,and Luzhong mutton sheep with different FecB genotypes.This not only demonstrated the impact of the FecB gene on sheep litter size,but also showed the feasibility and potential of improving the fertility of meat breeds by introducing the FecB gene of native sheep.
万方数据
维普
