Effects of fructooligosaccharides on growth performance,antioxidant and immune function of broilers
To analyze the effects of fruit oligosaccharides on growth performance,antioxidant indicators,immunoglobulins,and inflammation related factors in broiler chickens.[Method]The 200 1-day-old yellow feathered broiler chickens from a broiler farm in Gansu Province were selected as the experimental subjects.They were evenly divided into 4 groups(i.e.control group,test group A,B,C),with 10 replicates in each group and 5 broiler chickens in each group.The control group was fed with basic diet,while experimental group A,B and C were respectively fed with 1.0,2.0,3.0 g/kg fruit oligosaccharides on the basis of the control group.The results showed that the average daily feed intake and average daily weight gain of broiler chickens in the fruit oligosaccharide experimental group were significantly increased(P＜0.05).The average daily feed intake of experimental group A,B and C increased by 7.12%,10.82%,and 9.99%,respectively,and the average daily weight gain increased by 15.01%,29.61%,and 28.90%,respectively;The ratio of feed to gain in test groups A,B and C was significantly decreased by 7.06%,14.51% and 14.90%,respectively(P＜0.05);The activities of T-SOD,GSH Px,and T-AOC in the serum of broiler chickens in the control group were significantly lower than those in the fruit oligosaccharide experimental group(P＜0.05),and the MDA activity was significantly higher than that in the fruit oligosaccharide experimental group(P＜0.05);The serum IgG and IL-4 levels of broiler chickens in the experimental group were significantly increased(P＜0.05),and IL-6 and TNF-α levels were significantly decreased(P＜0.05).[Conclusion]Fructooligosaccharides can significantly promote the growth performance of broilers,improve the body's antioxidant and serum immune indicators,and the optimal dosage of 2.0 g/kg Fructooligosaccharides is added.This provides a reference basis for the rational addition of Fructooligosaccharides in local yellow feathered broilers in the future.
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