Productive and biological features of breeding Irish pigs of various genotypes in Western Siberia

Svetlana Burtseva,Lyudmila Pautova,Alexander Yashkin,Lyubov Khripunova,Sergey Chebakov,A Valiev,D.A Zyukin,W Heijman,R Nizamov,F Nezhmetdinova,M Nizamutdinov,D.I Zhilyakov,I Safiullin,M Kalimullin,A Taylan,B Ziganshin

doi:10.1051/bioconf/20213700123

Abstract

The present work studies the productive and biological characteristics of breeding Irish pigs of different genotypes in the conditions of Western Siberia. Pure-bred selection of Large White pigs (WP) was used in the first control group and intra-breed selection of Landrace pigs (LP) was used in the second control group. The following patterns of interbreeding were used in the experimental groups: ♀WP × ♂LP (third group), ♀LP × ♂WP (fourth group). In terms of reproductive qualities, the best combination should be considered the selection of ♀WP × ♂LP, in which 8.1% (p <0.05) more piglets were obtained at 30 days, with a 10.0% (p <0.05) higher weight of the nest at 30 days and 3.6% (p <0.05) greater safety than in the first control group. The combination of breeds according to the ♀LP × ♂WP scheme contributed to an increase in the average daily 13.7% (p <0.05) gain in live weight of the resulting offspring. At the age of 4 months, piglets of the LP × WP genotype had a 10.9% (p <0.05) higher content of total protein in the blood serum than in animals of the Large White breed. The muscle tissue of Large White pigs was characterized by a 5.2% (p <0.05) higher moisture binding capacity in relation to Landrace pigs. The melting point of fatty tissue was lower in Large White pigs by 14.3% (p <0.05). The fatty tissue of LP × WP hybrids has a 10.0% higher melting point (p <0.05) in contrast to Large White pigs.

Highlights

The productive qualities and pig meat quality depend on many factors including feeding and genotype [1]
In terms of reproductive qualities, the best combination should be considered the selection of White pigs (WP) x LP, in which the superiority over purebred breeding of Landrace pigs in the number of all piglets at birth by 3.9% (p
The combination of breeds according to the ♀LP × WP scheme contributed to an increase in the average daily gain in live weight of the resulting offspring by 13.7% (p

Summary

Introduction

The productive qualities and pig meat quality depend on many factors including feeding and genotype [1]. The health and performance of breeding pigs are key factors depending on heritability and animal genetics. The Landrace pig breed is a relatively modern breed and one of the most widespread breeds in the world. It has high lean meat and is used for high quality pork [2]. The use of Yorkshire pigs results in high quality meat production. Pigs known as the source breed are common in the United States and Canada and are muscular, high in lean meat and low in fat [3]

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