Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (4): 610-617.DOI: 10.3969/j.issn.1004-1524.2021.04.06

• Animal Science • Previous Articles     Next Articles

Effects of oral Panax notoginseng saponins on immunity of large yellow croaker (Pseudosciaena crocea)

CHEN Xiuxia(), CHI Hongshu, XU Binfu, XIE Anhua, FANG Donglan, GONG Hui*()   

  1. Biotechnology Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
  • Received:2020-11-10 Online:2021-04-25 Published:2021-04-25
  • Contact: GONG Hui

Abstract:

In this study, large yellow croaker (Pseudosciaena crocea) were fed with diets containing 0,10,50,250 mg·kg-1 Panax notoginseng saponins (PNS) for 14 d. To evaluate the effects of PNS on the immunity of large yellow croaker, the expression of some immune-related genes in the liver, spleen and head kidney tissues, the activities of some serum immune factors and the resistance against Pseudomonas plecoglossicida were determined. Results showed that the activities of serum superoxide dismutase (SOD), lysozyme (LZM), acp acid phosphatase (ACP) and alkaline phosphatase (AKP) in the experimental groups were not significantly different from the control group; the expression of Mx in spleen of fish fed with 250 mg·kg -1 PNS was significantly higher than that of control; the expression of Mx in spleen of fish fed with 50 mg·kg -1 PNS and in head-kidney of fish fed with 10 mg·kg-1 PNS were higher than that of control, but not significantly; the expression of TNF-α in all the exprimental groups were lower than that of control, but not significantly; the expression of IL-10 and MHCⅡ-α in all the exprimental groups were not significantly different from the control. The mortalities of the exprimental fish challenged with P. plecoglossicida were not significantly different from the control. It was indicated that feeding diets containing 10-250 mg·kg -1 PNS for 14 d did not improve the immunity of large yellow croaker

Key words: Panax notoginseng saponins, large yellow croaker (Pseudosciaena crocea), immunity

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