Effects of dietary supplementation with turmeric powder on antioxidant and lipid metabolism in yellow-feathered broilers
This study was conducted to investigate the regulatory effects of dietary supplementation with turmeric powder on redox homeostasis and lipid metabolism in yellow-feathered broilers,aiming to provide a theoretical basis for the application of turmeric powder in the production of yellow-feathered broilers.Three hundred and twenty one-day-old healthy male fast-type yellow-feathered broilers were randomly divided into four groups with eight replicates per group and 10 broilers per replicate.The control group was fed a basal diet;the curcumin group incorporated 150 mg/kg curcumin into the basal diet;the 0.5％turmeric powder group incorporated 5 g/kg turmeric powder into the basal diet;the 1％turmeric powder group incorporated 10 g/kg turmeric powder into the basal diet.The experiment lasted for 70 days.Antioxidant and lipid metabolism indices in the serum and livers of broilers were measured on days 28 and 70,respectively,and the expression levels of genes related to antioxidant and lipid metabolism in the liver were detected using qRT-PCR.Both turmeric powder and curcumin significantly increased antioxidant enzyme activity,including SOD and GSH-Px,in both serum and liver(P＜0.05),and serum and liver lipid metabolism of broilers improved to a certain extent.Expression of antioxidant-related genes including Keap1,Nrf2 and HO-1,and lipid metabolism-related genes including FAS,ACC,HSL,and PPARα in the liver of yellow-feathered broilers were effectively regulated by both curcumin and turmeric powder.In conclusion,dietary supplementation with turmeric powder can effectively regulate the expression of genes that regulate antioxidant and lipid metabolism in the livers of yellow-feathered broilers,improve antioxidant capacity in the serum and liver,and regulate lipid metabolism in yellow-feathered broilers.The effect was most significant with 1％supplemental turmeric powder.
万方数据
维普
