Bài báo khoa học

The objective of this experiment was to evaluate the effect of GF280xGF24, GF337xGF24, GF399xGF24 crossbreds and two diets on the growth capacity and meat productivity of pigs in the industrial pig production system in Central Vietnam. The experiment was done on 36 crossbred pigs in the period from 60 to 150 days old (3 crossbreds x 2 diets x 6 replications) raised in the openned barns. The experiment was arranged according to a completely randomized design with 2 factors: (i) the crossbred with 3 treatments: GF280xGF24; GF337xGF24; GF399xGF24, (ii) the diet with 2 treatments: Premium line and standard line. Results showed that GF280xGF24, GF337xGF24, GF399xGF24 crossbred pigs had high growth capacity, low feed conversion ratio and high meat productivity. The ADG in the period from 60 to 150 days old of the 3 crossbreds were between 809 and 873 g/day, in which the GF337xGF24 crossbred had superiority over the other two crossbreds. The feed conversion ratio of 03 crossbreds were low- between 2.25 and 2.76 kg feed/kg WG, in which the GF399xGF24 crossbred had the lowest feed conversion ratio (P<0.05). The lean meat percentage in carcasses of GF280xGF24, GF337xGF24, GF399xGF24 crossbreds were high, 60.30, 61.59 and 64.42%, respectively; in which the GF399xGF24 crossbred had the highest lean meat percentage (P<0.05). Diets and interactions between diets and crossbreds did not affect the growth and meat productivity of GF280xGF24, GF337xGF24, GF399xGF24 crossbreds. These crossbreds and the two diets should be considered used in the industrial pig production system.