<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The objective of the study was to determine the relationship between polymorphism in the <italic>RYR1</italic> gene (rs344435545) and on-farm test results (fattening, slaughter and reproductive traits) of pigs maintained in conservation herds. the experiment covered 76 boars and 291 gilts kept in 33 herds. animals aged 150–210 days were weighed and P2 and P4 backfat thickness as well as P4 loin muscle depth (P4m) were measured with an ultrasonic device. standardised daily gain (g/day) of the animals and carcass meat percentage (%) were determined. the following reproductive traits of sows were also collected: number of teats, age at first farrowing, dates of next farrowing, number of piglets born alive and weaned at 21 days of age. Hair roots were sampled from the gilts, sows and boars to determine the <italic>RYR1</italic> gene polymorphism. it was found that only 3% of the animals in the analysed population had <italic>TT</italic> genotypes, whereas 28.34% were heterozygous (<italic>CT</italic>). this polymorphism (<italic>CT</italic>) was carried by 28.34% of the animals. when analysing the effect of this polymorphism on fattening and slaughter traits in live animals, it was found that sows with <italic>TT</italic> genotype, compared to the others, were characterised by higher backfat thickness only (P≤0.05). In the boars with <italic>CC</italic> and <italic>CT</italic> genotypes, no significant differences were noted between the values of the analysed traits. for reproductive traits of the sows, it was observed that females with <italic>TT</italic> genotype weaned more piglets until 21 days of age (P≤0.05).</p></abstract>

The objective of the study was to determine the relationship between polymorphism in the RYR1 gene (rs344435545) and on-farm test results (fattening, slaughter and reproductive traits) of pigs maintained in conservation herds. the experiment covered 76 boars and 291 gilts kept in 33 herds. animals aged 150–210 days were weighed and P2 and P4 backfat thickness as well as P4 loin muscle depth (P4m) were measured with an ultrasonic device. standardised daily gain (g/day) of the animals and carcass meat percentage (%) were determined. the following reproductive traits of sows were also collected: number of teats, age at first farrowing, dates of next farrowing, number of piglets born alive and weaned at 21 days of age. Hair roots were sampled from the gilts, sows and boars to determine the RYR1 gene polymorphism. it was found that only 3% of the animals in the analysed population had TT genotypes, whereas 28.34% were heterozygous (CT). this polymorphism (CT) was carried by 28.34% of the animals. when analysing the effect of this polymorphism on fattening and slaughter traits in live animals, it was found that sows with TT genotype, compared to the others, were characterised by higher backfat thickness only (P≤0.05). In the boars with CC and CT genotypes, no significant differences were noted between the values of the analysed traits. for reproductive traits of the sows, it was observed that females with TT genotype weaned more piglets until 21 days of age (P≤0.05).

Performance Traits of Puławska Pigs Depending on Polymorphism in the <italic>RYR1</italic> Gene (C.1843C&gt;T)

Department of Pig Breeding, National Research Institute of Animal Production

Department of Animal Molecular Biology, National Research Institute of Animal Production

Department of Immunogenetics, Institute of Genetics and Animal Breeding

Department of Pig Breeding and Biotechnology

Annals of Animal Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Performance Traits of Puławska Pigs Depending on Polymorphism in the  Gene (C.1843C>T)

The objective of the study was to determine the relationship between polymorphism in the RYR1 gene (rs344435545) and on-farm test results (fattening, slaughter...

Performance Traits of Puławska Pigs Depending on Polymorphism in the RYR1 Gene (C.1843C>T)

Published Online: May 02, 2019

Page range: 319 - 326

Received: Jul 08, 2018

Accepted: Feb 20, 2019

DOI: https://doi.org/10.2478/aoas-2019-0017

Keywords
fattening, slaughter, reproduction, Puławska

© 2019 Magdalena Szyndler-Nędza et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Performance Traits of Puławska Pigs Depending on Polymorphism in the RYR1 Gene (C.1843C>T)

Published Online: May 02, 2019

Page range: 319 - 326

Received: Jul 08, 2018

Accepted: Feb 20, 2019

DOI: https://doi.org/10.2478/aoas-2019-0017

Keywordsfattening, slaughter, reproduction, Puławska

© 2019 Magdalena Szyndler-Nędza et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
fattening, slaughter, reproduction, Puławska