POSSIBILITIES OF IMPROVING THE SWINE BREEDING MANAGEMENT

In order to improve the reproductive indicators the fact that the maximum duration of sperm cells fertilizing capability is 24 hours must be considered and that the egg must be fertilized in 6-8 hours maximum, therefore the implementation of specific breeding farm management is needed. It is necessary that the checking for sows during oestrus be made twice a day between 7 and 15 o’clock, in order for the first insemination to occur 1-2 hours after discovering the sows on heat and the second insemination after 6 to 15 hours, when the best indicators of fertility and prolificacy are achieved. For days with reduced working hours, 7-12, we recommend the separation of lactating sows from their piglets to be made twice a week on Mondays and Thursdays. Based on the breeding management in the reproductive sector, the classical program of identifying sows during oestrus will be cancelled, as well as the insemination at intervals larger than 15-20 hours, due to the fact that many sows have short estruses and will not accept a second insemination, which determines lower reproductive indicators.