The analysis was conducted on the national database of the station tests carried out between May 1996 and February 2001, using the Hungarian Large White (LW) and Hungarian Landrace (LR) breeds, and the A-line of the Ka-Hyb hybrid (MLW). Days of test, total amount of feed consumed and valuable cuts were taken into the analysis to test the random distribution of the animals' phenotypic measurements and predicted breeding values across the contemporary groups of origin. The phenotypic measurements of all traits were clearly positively associated with the herds of origin (b = 0.52-1.08). Animals with favourable phenotypic measurements originated from better herds. On the contrary, the predicted breeding values seemed to be independent of the herd effects (b= -0.16-0.08) and suggested a possible random distribution across the contemporary groups.
Mrode, R. A. 1996: Linear models for the Prediction of Animal Breeding Values. CAB International, Wallingford, Oxon, UK.
Linear models for the Prediction of Animal Breeding Values, ().
Linear models for the Prediction of Animal Breeding Values)| false
Hofer, A. 1995: On problems related to data structures and models in genetic evaluation. 2nd Workshop on Advanced Biometrical Methods in Animal Breeding, Salzburg, June 12-20.
Hofer, A. and Frey, M. 1995: Prediction of breeding values for litter size in pigs using an animal model with a fixed or a random herd year effect. 2nd Workshop on Advanced Biometrical Methods in Animal Breeding, Salzburg, June 12-20.
Ugarte, E., Alenda, R. and Carabano, M. J. 1992: Fixed or random contemporary groups in genetic evaluations. J. Dairy Sci.75, 269-278.
'Fixed or random contemporary groups in genetic evaluations.' () 75J. Dairy Sci.: 269-278.
Fixed or random contemporary groups in genetic evaluations.J. Dairy Sci.75269278)| false