Genetic parameters of fertility traits in large white pigs
1986
Suwat Rattanaronchart | Pakorn Puprasert (Chiang Mai Univ. (Thailand). Faculty of Agriculture. Dept. of Animal Husbandry)
Data from the swine herd of Chiangmai Livestock Research Center were used to estimate heritabilities, six fertility traits, litter size and average weight of pig per litter at birth, three weeks of age, and at weaning and genetic and phenotypic correlations among them; and to examine the importance of effects of season of birth for three traits. Heritabilities for traits studied were small, except that for litter size at three weeks of age in which the heritability was moderate. Genetic correlations were moderate or large. The effects of season of birth were not significantly different (P .05) for most of the traits studied, except for average weight of pig per litter at three weeks of age in which the effects were significantly different (P .05)
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