Association of 24-bp Indel in PRL 5′-region on Egg-laying of Liboyaoshan Chickens

In an attempt to improve the egg-laying of the local Liboyaoshan chickens, PCR analysis was used to detect and identify the possible association of the 24-bp Indel (-377to-354bp) in PRL 5′-region with the egglaying of the chicken.The results showed that the site was a deletion type (83%) and no homozytes of insertion was found.There was no significant differences on the egg-laying performance of the chickens with PRL+/+, +/- or-/- genotypes (P>0.05) .