The recessive T allele of the missense polymorphism rs709596309 C > T of the leptin receptor gene is related to intramuscular fats. Nonetheless, its total affect on pork manufacturing remains to be partial.
Strategies: On this work, we investigated the all-round results of the TT genotype on lean development effectivity and carcass, meat and fats high quality utilizing information from an experiment that in contrast the efficiency of 48 TT and 48 C– (24 CT and 24 CC) Duroc barrows.
Outcomes: The TT pigs have been much less environment friendly for lean development than the C– pigs. Though heavier, their carcasses had much less lean content material, have been shorter and had lighter loins. Aside from growing marbling and saturated fatty acid content material, adjustments brought on by the TT genotype in meat and fats high quality are probably not sufficient to be perceived by shoppers. The impact on visible marbling rating exceeded that on intramuscular fats content material, which suggests a direct affect of the T allele on the sample of fats distribution in muscle.
Conclusion: With present low-protein diets, the T allele is predicted to be cost-effective solely in area of interest markets the place a really excessive stage of marbling is crucial.
Suárez-Mesa R, Ros-Freixedes R, Pena RN, et al. Affect of the leptin receptor gene on pig efficiency and high quality traits. Scientific Reviews 2024; 14: 10652. https://doi.org/10.1038/s41598-024-61509-1
