Analysis of associations of PIT1 genotypes with growth, meat quality and carcass composition traits in pig
2002
Brunsh, Ch. | Sternstein, I. | Reinecke, P. (Humbolt University, Berlin (Germany) Dept. of Breeding Biology and Molecular Animal Breeding) | Bieniek, J. (Krakow Agricultural University (Poland). Dept. of Genetics and Animal Breeding)
PIT1 is known as the pituitary-specific activator of the growth hormone in several mammals. Two informative three-generation families of the University of Hohenheim were used for the presented investigations. The families were based on crosses of the European Wild boar (W) x Pietrain (P). Each family included 310 F2 animals. A Rsal (PCR) RFLP described by Yu et al. was used for genotyping the animals. Altogether over 50 parameters of growth, meat quality, carcass composition and stress susceptibility were evaluated concerning their associations with Rsal PCR-RFLP. The statsistical model of association analyses was used including fixed effects of sex, family, PIT1 genotypes and covariate age at slaughter. Results from the study suggest that there are contributions of PIT1 gene to variations in the analysed performance traits in pigs
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