Association study of PIT1 and GHRH SNPs with economically important traits in pigs of three breeds reared in Poland
Journal Title: Animal Science Papers and Reports - Year 2013, Vol 31, Issue 4
Abstract
Using the GLM procedure an association was analysed between PIT1 and GHRH SNPS and economically important traits in pigs of three breeds reared in Poland. Significant effect of GHRH/ AluI SNP was observed on several quality traits such as water-holding capacity and meat colour (A, B and L*) in Polish Large White pigs (P<0.05), with the differences between alternative homozygotes being 8.1%, and 5% (meat colour), and 16% and 3% (WHC), respectively. With respect to the PIT1 gene polymorphism, it was found that pigs carrying AA genotype presented lower values of growth traits such as feed:gain ratio, daily feed intake and number of days on test compared to BB animals (P<0.05) as well as lower pH24 in loin and ham. In turn, heterozygous pigs (AB) had the highest level of fat and the lowest values of meat traits when compared to both homozygotes. It was concluded that polymorphisms in GHRH and PIT1 genes were not directly associated with quality and carcass traits, and likely they are linked to genetic markers localized on chromosomes 17 and 13. Therefore, further investigations should aim at thorough testing of GHRH and PIT1 loci.
Authors and Affiliations
Katarzyna Piórkowska, Maria Oczkowicz, Marian Różycki, Kacper Żukowski
Keywords
Related Articles
- EP ID EP70692
- DOI -
- Views 147
- Downloads 0
Induced pluripotent stem (iPS) cells in domestic animals − recent achievements − a review
Pluripotent cells show the unlimited self-renewal capacity and the potential to differentiate into the cell lineages originating from three germ layers. To date real pluripotent stem cell lines, able to generate germ lin...
Alternative supplemental mixture for organic dairy herds to maintain desirable milk fatty acid profile throughout the indoor feeding period
The aim of the study was to evaluate the effect of diet containing a supplemental mixture with alternative components suitable for organic herds on the yield and composition of milk and the fatty acid profile. The on-far...
Factors affecting the shape of lactation curves in Polish Holstein-Friesian cows
The objectives of this study were (1) to examine different shapes of lactation curves when the Wilmink function is fitted to test-day yields, and (2) to analyze the relationships between lactation curve shape and factors...
Direct detection of Mycobacterium avium subsp. Paratuberculosis in bovine milk by multiplex Real-time PCR
The study aimed at direct detection of Mycobacterium avium subsp. Paratuberculosis (MAP) in milk by evaluating a multiplex real-time PCR assay targeting IS900 and ISMAV2 sequences including the amplification of PUC19-pla...
Polymorphism in coding and regulatory sequences of beta-casein gene is associated with milk production traits in Holstein-Friesian cattle
Beta-casein gene (CSN2) is considered a marker of milk production traits in dairy cattle. Allele A2, the most common in Holstein-Friesian breed, is beneficial for milk protein yield. However, within CSN2 other mutations...