Fattening and carcass performance and meat- and fat quality of Pietrain pigs of different MHS-genotype and sex. I. Fattening and carcass performance and meat quality

For the purpose of the comparison of the fattening and carcass performance and meat quality of different MHS-genotypes and sexes of the Pietrain race 60 fattening pigs with equal numbers of the three MHS-genotypes (NN, Np, pp ) and both sexes (castrates, gilts) had been gone in the fattening and carc ass performance testing of a liner testing station. The animals had been fa ttened from 30 to 105 kg. With decreasing presence of the stress allele p (pp>Np>NN) as well in the c astrates compared with the gilts there could be shown increasing growth rat es combined with decreasing feed conversion, decreasing carcass quality tha t is higher degree of fatness and lower lean meat content of the carcass, m ore advantageous meat quality and a higher intramusculare fat content. According to the results a general selection for stress-resistance of the P ietrain race is recommended.