Genetic Determinism of the Growing Rate and Carcass Quality in a Pig Population (original) (raw)

Studying the genetic parameters presents importance for choosing selection method, breeding system and the goal objective of selection. The study was carried out on a sample from LS 345-Periș pig population consist of 2759 offspring belonging to 80 of sire families. The studied sample consist of 1443 descendants from big white breed, belonging to 50 families of semi-sisters –semi-brothers with an average size of 28,9 SS-SF. There were analyzed the following seven characters: live weight at the age of 182 days, slaughter yield, fat thickness, muscle size, lean meat percentage corrected, average daily spore per life and average daily spore in meat. The growing and carcass traits have a genetic determinism intermediate towards intense. The heritability values range from 0,264 (back fat thickness) to 0,411 (percentage of muscle tissue). On the basis of phenotypic interand intrafamilial variance and covariance there were estimated the phenotypic, genotypic and environmental correlation c...

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