Analysis of influences on reproduction of sows

The aim of the bachelor thesis is to analyse the reproductive traits of sows, namely their fertility, the lactation performance as well as the influences that affect them. The reproductive traits are in particular influenced by the animals? breeding affiliation, heterosis, the age and weight of the sow, the litter size and number, the farrowing index, the heritability of the boar, nutrition and the technology of stabling. The thesis deals with these aspects and clarifies them. Furthermore, it provides a description of the pig maternal breeds in which these reproductive traits were monitored, and focuses on controlled reproduction as well