Analysis of the influences acting on the reproductive performance of sows

The purpose of this dissertation is the evaluation of the fertility and the reproduction index of the sows in the breeding of the agricultural cooperative Lukavec. The herd of sows was divided into three groups according to age structure of the sows in the risk litter (litters 1 and 2), the sows in the production litters (litters 3 ? 5) and the sows in 6 and more litters. The reproduction process is influenced by a lot of impacts endogenous and exogenous