Effects of Fatty Acid Calcium on Redox State and Immune Function in Stressed Broiler Chickens

Abstract:

The aim of the present study was to evaluate the effect of fatty acid calcium on redox status and immune function of stressed broilers. A total of 360 yellow-feather broilers with 1-day-age were randomly divided into 4 groups: control （group I）and stress groups（group II，group III，group IV）. The oils added in each group were soybean oil（group I），soybean oil（group II），feed grade lard（group III），soybean oil fatty acid calcium（group IV），with 9 repetitions per group. After 63 days,the redox status and immune function related indicators in blood，liver and intestine were detected. The content of HSP70 in jejunum and plasma of group IV was significantly lower than that of group II and III（P<0.05）. The levels of ACTH and CORT in plasma of group IV were significantly lower than those of group II and III（P<0.05）and close to those of group I. The liver CAT activity，liver and duodenal total SOD activities in group IV were significantly higher than those in group III（P<0.05），and the MDA content in serum，liver and duodenum was significantly lower than that in group III（P<0.05）. Liver MDA content was significantly lower than group II and there was no significant difference from groupⅠ. Plasma IgG and IgA contents in group IV were significantly higher than those in group III（P<0.05）. The plasma and liver IL-6 levels in group IV were significantly lower than those in group III（P<0.05）. The results indicated that，the redox state of stressed broilers was improved，the adverse effects of stress on the immune function of broilers was relieved，and the anti-stress ability was enhanced by fatty acid calcium.