Effects of dietary Astragalus Propinquus Schischkin polysaccharides on growth performance, immunological parameters, antioxidants responses and inflammation-related gene expression in Channa argus.

Comp Biochem Physiol C Toxicol Pharmacol

College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin 130118, China; Jilin Provincial Key Laboratory of Animal Nutrition and Feed Science, Jilin Agricultural University, Changchun, Jilin 130118, China; Ministry of Education Laboratory of Animal Production and Quality Security, Jilin Agricultural University, Changchun, Jilin 130118, China.

Published: November 2021

AI Article Synopsis

  • The study examined the impact of different levels of Astragalus propinquus polysaccharides on the growth and immune response of Channa argus over 56 days.
  • Results revealed that these polysaccharides improved growth measures, such as body weight and growth rate, while also enhancing antioxidant activity and lowering indicators of inflammation and stress in the fish.
  • The optimum dosage identified for maximizing these benefits was 1000 mg/kg, which positively influenced gene expression related to inflammation and immune function in various tissues.

Article Abstract

The present study investigated the effects of dietary Astragalus Propinquus schischkin polysaccharides on growth, immune responses, antioxidants responses and inflammation-related genes expression in Channa argus. Channa argus were randomly divided into 5 groups and fed 5 levels diets of A. propinquus schischkin polysaccharides (0, 250, 500, 1000 and 2000 mg/kg) for 56 days. The results showed, dietary A. propinquus schischkin polysaccharides addition can increase the final body weight, weight gain and specific growth rate, decrease the feed conversion ratio of Channa argus. And dietary A. propinquus schischkin polysaccharides supplementation can increase the levels of serum superoxide dismutase, catalase, glutathione peroxidase, lysozyme, complement 3, complement 4, immunoglobulin M and alkaline phosphatase, decrease the levels of serum malondialdehyde, cortisol, aspartate aminotransferase and glutamic-pyruvic transaminase. Furthermore, dietary A. propinquus schischkin polysaccharides can decrease the gene expression levels of interleukin-1β, interleukin-, tumor necrosis factor-α and nuclear factor-κB, increase the gene expression levels of glucocorticoid receptor in liver, spleen, kidney, intestine. To sum up, dietary A. propinquus schischkin polysaccharides can accelerate growth, enhance immune responses and antioxidants responses, regulate inflammation-related genes expression in Channa argus and the optimum amount is 1000 mg/kg.

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Source
http://dx.doi.org/10.1016/j.cbpc.2021.109121DOI Listing

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