[Objective] The effect of oligosaccharides, citric acid, and Chinese herb medicine on performance and immune function in broilers was investigated. [Method] The broilers were fed the corresponding diets. The performance and index of immune organs, T lymph cells, erythrocyte C3b receptor rosette rate (E-C3bRR) and immune complex rosette rate (E-ICRR) were determined. [Result] The results showed that weight gains effect, feed efficiency (gains/feed) and immune function were unproved. The 2 trial groups were significant superior to the control group and the other trial groups.
broiler chickenoligosaccharidescitric acidChinese herb-medicineperformanceimmune function