Effects of selenium-enriched mealworm powder on growth performance,serum biochemical indices,carcass performance,and meat quality in growing-finishing pigs
The experiment investigated the effects of selenium-enriched mealworm powder on the growth performance,serum biochemical indices,carcass performance,and meat quality in growing-finishing pigs.A total of 72 healthy pigs(Duroc x Landrace x Yorkshire),weighing about 21 kg,were randomly divided into three groups,with six replicates in each group and four pigs per replicate.The control group was fed with a basal diet,and the 0.1％group and 0.2％group were supplemented with 1 kg/t and 2 kg/t of selenium-enrich mealworm powder in the basal feed,respectively.The experiment lasted for 17 weeks.The results showed that compared with the control group,0.1％selenium-enriched mealworm powder to the diet could significantly increase the average daily gain of growing-finishing pigs(P＜0.05).0.2％selenium-enriched mealworm powder could significantly increase serum immunoglobulin A(IgA)content,glutathione peroxidase(GSH-Px),and superoxide dismutase(SOD)activities(P＜0.05),while significantly decreasing serum malondialdehyde(MDA)content in pigs(P＜0.05).0.1％and 0.2％selenium-enriched mealworm powder could increase the concentrations of intramuscular fat,selenium,linoleic acid,α-linoleic acid,arachidic acid,eicosenoic acid,and eicosadienoic acid in the longissimus dorsi muscle of pigs(P＜0.05).The results show that dietary supplementation with selenium-enriched mealworm powder can improve growth performance,immunity,antioxidant ability,and the nutritional value of meat in growing-finishing pigs.
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