PRLR-AluI Gene Polymorphism And Litter Size Traits In Highly Prolific Line Of Topigs 20 Sows

The objective of the present study was to identify the Prolactin Receptor (PRLR) gene polymorphism related to litter size traits. The study included 101 Topigs 20 line of sows with 426 litters. The traits studied were: Total Number of Born (TNB), Number of Born Alive (NBA), Number of Still Born (NSB...

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Autores principales: Menčik Sven, Vuković Vlado, Modrić Mario, Špehar Marija, Ostović Mario, Sušić Velimir, Štoković Igor, Samardžija Marko, Ekert Kabalin Anamaria
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Publicado: Sciendo 2015
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Acceso en línea:https://doaj.org/article/62d01c26ae264cf98e867b5db766b09f
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spelling oai:doaj.org-article:62d01c26ae264cf98e867b5db766b09f2021-11-17T21:27:50ZPRLR-AluI Gene Polymorphism And Litter Size Traits In Highly Prolific Line Of Topigs 20 Sows1820-744810.1515/acve-2015-0039https://doaj.org/article/62d01c26ae264cf98e867b5db766b09f2015-12-01T00:00:00Zhttps://doi.org/10.1515/acve-2015-0039https://doaj.org/toc/1820-7448The objective of the present study was to identify the Prolactin Receptor (PRLR) gene polymorphism related to litter size traits. The study included 101 Topigs 20 line of sows with 426 litters. The traits studied were: Total Number of Born (TNB), Number of Born Alive (NBA), Number of Still Born (NSB), and Number of MUMmified (NMUM) piglets. Polymorphism was identified with the polymerase chain reaction-restriction fragment length polymorphism method. Allelic and genotype frequencies and deviation from Hardy-Weinberg equilibrium were verified with the chi-square test. Analysis of litter size traits was performed using the General Linear Model, which included the potential environmental effects. Additive and dominant allele variances were observed by the regression procedure. In the studied population of sows, the frequency of heterozygotes (0.5149) for PRLR gene exceeded the total number of AA (0.0198) and BB (0.4653) homozygotes, which resulted in a high proportion of B allele (0.7228). The results for PRLR showed statistically significant (P<0.05) differences in first parity sows between BB and AB genotypes for TNB and NBA. Significant differences (P<0.05) were recorded in third parity sows between BB and AB genotypes for NBA, and in AA genotype versus AB and BB genotypes for NMUM. The fourth and subsequent parity sows of AA genotype had a significantly higher (P<0.05) rate of NBA as compared with those of AB and BB genotypes. In all parities analysed, the difference between the BB and AB genotypes for NBA was statistically significant (P<0.05). Interpretation of the results at the levels of phenotypes and either additive or dominant variance was quite difficult due to the small number of AA homozygous sows. The calculation model yielded a significant effect (P<0.05) as well as tendency (P<0.1) for the mentioned effects except for age at first farrowing.Menčik SvenVuković VladoModrić MarioŠpehar MarijaOstović MarioSušić VelimirŠtoković IgorSamardžija MarkoEkert Kabalin AnamariaSciendoarticleprolactin receptor genelitter sizepigstopigs 20Veterinary medicineSF600-1100ENActa Veterinaria, Vol 65, Iss 4, Pp 463-476 (2015)
institution DOAJ
collection DOAJ
language EN
topic prolactin receptor gene
litter size
pigs
topigs 20
Veterinary medicine
SF600-1100
spellingShingle prolactin receptor gene
litter size
pigs
topigs 20
Veterinary medicine
SF600-1100
Menčik Sven
Vuković Vlado
Modrić Mario
Špehar Marija
Ostović Mario
Sušić Velimir
Štoković Igor
Samardžija Marko
Ekert Kabalin Anamaria
PRLR-AluI Gene Polymorphism And Litter Size Traits In Highly Prolific Line Of Topigs 20 Sows
description The objective of the present study was to identify the Prolactin Receptor (PRLR) gene polymorphism related to litter size traits. The study included 101 Topigs 20 line of sows with 426 litters. The traits studied were: Total Number of Born (TNB), Number of Born Alive (NBA), Number of Still Born (NSB), and Number of MUMmified (NMUM) piglets. Polymorphism was identified with the polymerase chain reaction-restriction fragment length polymorphism method. Allelic and genotype frequencies and deviation from Hardy-Weinberg equilibrium were verified with the chi-square test. Analysis of litter size traits was performed using the General Linear Model, which included the potential environmental effects. Additive and dominant allele variances were observed by the regression procedure. In the studied population of sows, the frequency of heterozygotes (0.5149) for PRLR gene exceeded the total number of AA (0.0198) and BB (0.4653) homozygotes, which resulted in a high proportion of B allele (0.7228). The results for PRLR showed statistically significant (P<0.05) differences in first parity sows between BB and AB genotypes for TNB and NBA. Significant differences (P<0.05) were recorded in third parity sows between BB and AB genotypes for NBA, and in AA genotype versus AB and BB genotypes for NMUM. The fourth and subsequent parity sows of AA genotype had a significantly higher (P<0.05) rate of NBA as compared with those of AB and BB genotypes. In all parities analysed, the difference between the BB and AB genotypes for NBA was statistically significant (P<0.05). Interpretation of the results at the levels of phenotypes and either additive or dominant variance was quite difficult due to the small number of AA homozygous sows. The calculation model yielded a significant effect (P<0.05) as well as tendency (P<0.1) for the mentioned effects except for age at first farrowing.
format article
author Menčik Sven
Vuković Vlado
Modrić Mario
Špehar Marija
Ostović Mario
Sušić Velimir
Štoković Igor
Samardžija Marko
Ekert Kabalin Anamaria
author_facet Menčik Sven
Vuković Vlado
Modrić Mario
Špehar Marija
Ostović Mario
Sušić Velimir
Štoković Igor
Samardžija Marko
Ekert Kabalin Anamaria
author_sort Menčik Sven
title PRLR-AluI Gene Polymorphism And Litter Size Traits In Highly Prolific Line Of Topigs 20 Sows
title_short PRLR-AluI Gene Polymorphism And Litter Size Traits In Highly Prolific Line Of Topigs 20 Sows
title_full PRLR-AluI Gene Polymorphism And Litter Size Traits In Highly Prolific Line Of Topigs 20 Sows
title_fullStr PRLR-AluI Gene Polymorphism And Litter Size Traits In Highly Prolific Line Of Topigs 20 Sows
title_full_unstemmed PRLR-AluI Gene Polymorphism And Litter Size Traits In Highly Prolific Line Of Topigs 20 Sows
title_sort prlr-alui gene polymorphism and litter size traits in highly prolific line of topigs 20 sows
publisher Sciendo
publishDate 2015
url https://doaj.org/article/62d01c26ae264cf98e867b5db766b09f
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