# The Effect of rs80860411 Polymorphism on Fattening, Slaughter, and Pork Quality Traits in Polish Large White and Pulawska Breeds

## TL;DR

This study found that a specific genetic variant in pigs affects fattening, slaughter, and meat quality traits, especially in the Pulawska breed.

## Contribution

The study identifies rs80860411A>C as a potential QTN for improving pig traits in breeding programs.

## Key findings

- The SNP rs80860411A>C significantly affects fattening and slaughter traits in Pulawska pigs.
- It influences meat redness in Pulawska and loin texture in Polish Large White pigs.
- The SNP could be used in pig selection programs to improve meat quality and production traits.

## Abstract

The aim of this study was to analyze the association between intergenic SNP rs80860411A>C and fattening, slaughter, and pork quality traits of pigs. The association studies included a total of 235 individuals belonging to the Polish Large White and Pulawska breeds. It was found that rs80860411A>C has a significant effect on fattening performance traits, as well as on several slaughter performance traits: width of the loin eye, loin and ham weights without skin and backfat, and carcass meat content in the Pulawska breed. The studied SNP was found to affect such quality traits as meat color—redness (a*) in the Pulawska breed and loin texture in Polish Large White. So, the studied SNP could be useful in pig selection programs for improving the fattening, slaughter traits, and meat quality traits, in particular in the Pulawska breed

The intergenic SNP (single-nucleotide polymorphism) rs80860411A>C was identified as a major QTL for drip loss measured on semimembranosus muscle (SM) in pigs. The SNP is located near the GALNT15. The purpose of this study was to analyze the association between rs80860411A>C and fattening, slaughter, and quality traits of Polish pigs. This study was conducted on 235 individuals belonging to two breeds, Polish Large White (n = 187) and Pulawska (n = 48). The rs80860411 genotypes were determined using the PCR-RFLP method. Association analysis was performed for each breed separately. It was shown that rs80860411A>C had a significant effect on fattening performance traits, on several slaughter performance traits, including width of the loin eye and carcass meat content (p ≤ 0.01, p ≤ 0.05), as well as on meat color—redness (a*) (p ≤ 0,05) in Pulawska breed. The obtained results indicate that the studied SNP has the potential to be a QTN and could be included in pig selection programs, especially in Pulawska pigs.