Herd specific effects of the ESR gene on litter size and production traits in Czech Large White sows
|Kateg. publikace||Vědecké publikace impaktované|
The effect of the PvuII polymorphism of the oestrogen receptor gene on litter size and production traits in a Czech Large White population was evaluated with four-trait animal models. The traits analyzed were lifetime average daily gain in the field test, lean meat percentage, number of piglets born alive in 1st litter and in 2nd and later litters. The animal models differed in considering the herd-year-season effect as random or fixed and in including or not including the dominance effect. On the genetic level, no significant overall effects of the ESR gene were detected. The effects of the ESR gene within herds were mostly nonsignificant as well. There was a certain tendency for allele A to increase litter size in 1st litter. Nevertheless on the basis of the present knowledge, the use of the ESR gene for selection on litter size in the Czech Large White breed seems to be of questionable benefit and cannot be recommended.
|Oddělení||Genetika a šlechtění hospodářských zvířat|
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