Effects of dietary sodium humate supplementation on production performance,antioxidant capacity and gas emission of finishing pigs
The study was designed to research the effects of dietary sodium humate(HNa)supplementation on production performance,antioxidant capacity and gas emission of finishing pigs.A total of 300"D×L×Y"foreign crossbred pigs with an initial weight of(65.23±1.34)kg were randomly divided into 5 groups,with 6 replicates per group and 10 pigs per replicate.Blank group was fed with basal diet,experimental groups were supplemented with 0.25%(HNa1 group),0.50%(HNa2 group),0.75%(HNa3 group)and 1.00%(HNa4 group)HNa in basal diet.Experiment lasted for 63 days,pre-experiment lasted for 4 days.The results showed as follows:compared with Blank group,adding 0.75%and 1.00%HNa in the diet of finishing pigs significantly increased final weight(FBW),average daily gain(ADG),and significantly decreased the ratio of feed to gain(F/G)(P＜0.05);Compared with Blank group,the serum total antioxidant capacity,glutathione peroxidase and superoxide dismutase(SOD)indexes of finishing pigs supplemented with 1.00%HNa were significantly increased,and malondialdehyde(MDA)index was very significantly decreased(P＜0.01).Compared with Blank group,adding 0.75%and 1.00%HNa in the diet of finishing pigs could significantly reduce the gas emissions of ammonia,hydrogen sulfide and methane(P＜0.05).In conclusion,adding 0.75%HNa to the diet of finishing pigs can significantly improve production performance and optimize gas emission index,and the antioxidant capacity of pigs is better when adding 1.00%HNa.
NETL
NSTL
万方数据
