<abstract xmlns="http://www.w3.org/1999/xhtml">

The aim of the study was a search for new polymorphisms in the genes related to lactogenesis, including lactose synthesis in colostrum and milk, and determine their relationship with the content of colostrum and milk components and body weight of the piglets. Colostrum and milk were sampled during the second lactation on d 1, 7, 14 and 21 from 112 sows of Polish Large White (PLW) and Polish Landrace (PL). The piglets’ rearing performance was determined based on the number and body weight at 1, 7, 14 and 21 d of age. In the study six polymorphisms located in different genes were analysed. Among the six polymorphisms under analysis, those identified in the <italic>B4GALT1</italic> genes had the most significant effect on colostrum and milk composition and the piglets’ body weight changes. Sows of the <italic>B4GALT1GG</italic> genotype, when compared to those of <italic>B4GALT1AA</italic>, produced colostrum and milk with a significantly lower lactose content and reared piglets with a substantially higher body weight (by 0.30 kg) at 21 d of age.
</abstract>

The aim of the study was a search for new polymorphisms in the genes related to lactogenesis, including lactose synthesis in colostrum and milk, and determine their relationship with the content of colostrum and milk components and body weight of the piglets. Colostrum and milk were sampled during the second lactation on d 1, 7, 14 and 21 from 112 sows of Polish Large White (PLW) and Polish Landrace (PL). The piglets’ rearing performance was determined based on the number and body weight at 1, 7, 14 and 21 d of age. In the study six polymorphisms located in different genes were analysed. Among the six polymorphisms under analysis, those identified in the B4GALT1 genes had the most significant effect on colostrum and milk composition and the piglets’ body weight changes. Sows of the B4GALT1GG genotype, when compared to those of B4GALT1AA, produced colostrum and milk with a significantly lower lactose content and reared piglets with a substantially higher body weight (by 0.30 kg) at 21 d of age.

Effect of the polymorphism of genes related to lactogenesis in pigs on colostrum and milk composition and on rearing performance of piglets

Annals of Animal Science

This work is licensed under the Creative Commons Attribution 4.0 International License.

The aim of the study was a search for new polymorphisms in the genes related to lactogenesis, including lactose synthesis in colostrum and milk, and determine...

Effect of the polymorphism of genes related to lactogenesis in pigs on colostrum and milk composition and on rearing performance of piglets

Published Online: Jul 19, 2022

Page range: 891 - 901

Received: May 11, 2021

Accepted: Nov 25, 2021

DOI: https://doi.org/10.2478/aoas-2022-0004

Keywords
colostrum and milk, lactose, piglets’ body weight

© 2022 Magdalena Szyndler-Nędza et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Effect of the polymorphism of genes related to lactogenesis in pigs on colostrum and milk composition and on rearing performance of piglets

Published Online: Jul 19, 2022

Page range: 891 - 901

Received: May 11, 2021

Accepted: Nov 25, 2021

DOI: https://doi.org/10.2478/aoas-2022-0004

Keywordscolostrum and milk, lactose, piglets’ body weight

© 2022 Magdalena Szyndler-Nędza et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
colostrum and milk, lactose, piglets’ body weight