OPTIMAL MODEL INSEMANTION SOWS EXPLOITED IN SMALL AND MEDIUM FARMS

Abstract

The optimal time for inseminating breed sows can be chosen if we know well how to detect mating sows, taking into account the fact that ovulation takes place 30-36 hours after the moment the syndrome of immobility appeared, and that the favourable interval for the ovule to get fecundated is between  and 6 hours starting from the moment of follicular dehiscence. This is why it is imperious to practice a farm management focused on inseminating. Birth rate percentage in sows, no matter their age, is similar if the duration between the inseminations is of 5 hours or of 15 hours. A longer duration between inseminations (17 hours) leads to a decrease in birth rate up to 77.2% in primiparous and up to 75.2% in multiparous sows.