The influence of MHS-genotypes on fattening and carcass performance traits of purebred Pietrain pigs and PI X DL slaughter pigs at testing station
Wittmann, W.; Goetz, K.-Uwe; Peschke, W.; Lindner, J.-Peter; Hauser, M.
Archiv fuer Tierzucht 42(2): 139-147
For the comparison of fattening and carcass performance traits as well as the meat quality of different MHS-genotypes, one Pietrain group with 434 and another one of 64 PI X DL animals of both sexes were evaluated. The LSQ-means from an animal model showed in tendency a lower fattening performance of the stress-susceptible genotypes. Significant differences were found for higher fat layers and fat surfaces and for lower meat surfaces and percentage of lean meat in NP- and NN-genotypes as compared to the PP-animals. The differences between the MHS-genotypes of the PI X DL animals were similar to those of the Pietrain animals. Both statistical models confirmed a better meat quality already in the NP-genotypes. With respect to lower loss rates, reduction of insufficient meat qualities (PSE, DFD) and a still high proportion of lean meat of the NP- and NN-animals, a selection of the Pietrain race for stress-resistance should be suitable.