This study aims to evaluate the impact of varying doses of curcumin on the growth performance and blood biochemical indices of Dorper×Hu crossbred sheep under heat stress conditions.The trial involved 30 healthy Dorper×Hu crossbred rams,each weight with(28.03±0.32)kg,which were randomly divided into three groups of 10.Each group received a different daily curcumin dosage:0 mg/head/day(CON group),450 mg/head/day(CUL group),and 900 mg/head/day(CUH group).The experiment included a 15-day pre-feeding period followed by a 60-day main trial period.The results indicated that:(1)The average daily gain and total weight gain of the CUL group were significantly higher than those of the CON and CUH groups(P＜0.05).(2)The levels of total protein and globulin in the serum of the CUL group were significantly higher than those in the CON and CUH groups(P＜0.05).(3)The serum immunoglobulin G levels in the CUL group were significantly higher than those in the CON and CUH groups(P＜0.05),while the malondialdehyde levels in the serum of the CON and CUH groups were significantly higher than those in the CUL group(P＜0.05).In summary,supplementing the diet with 450 mg/head/day of curcumin can improve the stress response and health status of Dorper×Hu crossbred sheep under heat stress,thereby enhancing their growth performance.
curcuminhybrid offspring of boer and huai goatsheat stressgrowth performanceblood index
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