Bài báo khoa học

The objective of this experiment was to study average daily gain, feed conversion ratio and economic efficiency of GF399xGF24 crossbred pigs at three slaughter weights: 100, 110 and 120kg. The experiment was carried out on 136 GF399xGF24 crossbred pigs at 60 days old (initially 20,96±3,42kg). The male:female ratio was 1:1. The experiment was arranged according to a completely randomized design with 12 experimental units (3 treatments * 4 replications). The experimental unit was pigs in each pen. Pigs were fed ad libitum according to growing phases. The results showed that the average daily gain (ADG) and average daily feed intake (ADFI) and feed conversion ratio (FCR) all increased as slaughter weight increased from 101.4 to 118.4kg, the ADG increased from 788.6 to 812.2 g/ngày (P=0.11), the ADFI increased from 2.02 to 2.19 kg/head/day (P=0.00) and the FCR increased from 2.56 to 2.69kg feed/kg WG (P=0.08), respectively. Each farm with breeding scale of 500 heads, increased the net profit from 712,180,165 to 875,260,982 VNĐ/year when they increased slaughter weight from 100 to 120 kg. It is feasible to increase the slaughter weight of the GF399xGF24 crossbred pigs to 120kg in the industrial pig production system.