Study of WUR10000125 polymorphism association with meat, fattening and reproductive traits of Landrace and large white pig breeds

Integration of DNA markers associated with disease resistance into breeding programs is one of the most promising approaches to control infections of livestock. The identification and implementation of such a marker for the porcine reproductive and respiratory syndrome is particularly topical. The disease causes significant economic losses in the industry, and the proposed vaccines against PRRS are ineffective and associated with a risk of developing viremia after immunization. A promising DNA marker of resistance to this disease is the single nucleotide polymorphism WUR10000125 ( WUR ) localized in the GBP1 gene. The aim of the study was to assess the reproductive, fattening and meat qualities of Large White and Landrace pigs bred in PRRS-free nucleus farms, considering the genetic variant of the WUR gene. Studies were conducted in 2018-2019 on pigs of Large White and Landrace pigs reared in Selection and Hybrid Center LLC (Voronezh region). Genotypes of 206 sows of Large White and 112 sows of Landrace pig breeds were determined by PCR with using the QuantStudio 5 Real-Time PCR System (Thermo Fisher Scientific, USA)...