REPRODUCTIVE PROPERTIES OF IRISH BREEDING SOWS WHILE WELL BREEDING AND CROSSING
Research results show the efficiency of crossing Irish Large White sows with Duroc he-swines. Multiple pregnancy of sows increases on 1.01 piglets or 7.8%; milking capacity increases on 7.3 kilos or 11.3%; amount of piglets increases on 0.9 pigs or 8.4% in relation to weaning and nest mass increases on 10 kilos or 12.8% in relation to weaning.