Effects of dietary supplementation with leonurine hydrochloride on growth performance, immune response, antioxidant capacity and blood parameters in male broiler chicks
2018
Yang, Li | Qiao, Yanjie | Liu, Gang | Zhu, Xiaoqing | Luo, Yan | Chen, Jie | Liu, Xiaoting | Ma, Zhao | Shang, Yunxia | Gu, Xinli
The aim of the present study was to explore the effects of different dietary levels (0, 15, 30, 60, 120 mg/kg) of leonurine hydrochloride (LHy) supplementation on growth performance, immune response, antioxidant capacity, hematological parameters and serum lipid profiles in broiler chicks. A total of 600 1-day-old Ross × Ross male broilers were randomly allocated to five treatment groups consisting of eight pens of fifteen birds. The feeding programme included a starter diet until day 21 and a finisher diet from day 22 to day 42. The results indicate that LHy did not alter the growth performance of broilers (P > 0.05). Supplementation of the basal diet with LHy increased (linear, P < 0.05) relative spleen weights at d 21 and 42. In both 21- and 42-day-old chicks, dietary LHy supplementation linearly increased (P < 0.05) the serum immunoglobulin A (IgA) and M (IgM) concentrations, catalase (CAT), total superoxide dismutase (T-SOD), total antioxidant capacity (T-AOC) activities, low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) levels, while linearly (P < 0.05) decreased serum malondialdehyde (MDA) activity, red blood cell (RBC) count, hemoglobin, triglyceride (TC) levels and total cholesterol (CHOL) content. In addition dietary LHy supplementation linearly (P < 0.05) increased the GSH activity in 42-day-old broilers. Taken together, dietary LHy supplementation was able to promote immune function and antioxidant capacity, and decrease blood lipid levels in broilers.
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