Effects of Glutamine on Antioxidant Capacity and Non-Specific Immunity of Juvenile Yellow Catfish (Pelteoobagrus fulvidraco)

ZHANG Jie, CHEN Haimin, ZHOU Qicun, ZHU Fangzhou

doi:10.3969/j.issn.1006-267x.2016.03.016

2016 , Vol. 28 >Issue 3: 759 - 765

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.03.016

Aquaculture Nutrition

Effects of Glutamine on Antioxidant Capacity and Non-Specific Immunity of Juvenile Yellow Catfish (Pelteoobagrus fulvidraco)

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1. Key Laboratory of Applied Marine Biotechnology, School of Marine Sciences, Ningbo University, Ningbo 315211, China;
2. Laboratory of Fish Nutrition, School of Marine Sciences, Ningbo University, Ningbo 315211, China;
3. Zhengzhou Xinwei Nutrition Technology Company, Zhengzhou 450100, China

Received date: 2015-09-09

Online published: 2016-03-14

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Abstract

A 10-week feeding trial was conducted to investigate the effects of dietary glutamine (Gln) on antioxidant capacity and non-specific immunity of juvenile yellow catfish (Pelteoobagrus fulvidraco). A total of 240 juvenile yellow catfish with an average body weight of (2.49±0.04) g were randomly divided into 4 groups with 3 replicates per group, and 20 fish in each replicate. The fish in those groups were fed 4 iso-nitrogenous and iso-energetic diets with the Gln additions of 0 (control), 0.1%, 0.2% and 0.4%, respectively. The results showed that fish fed the diet containing 0.2% Gln could significantly improve the contents of total protein (TP), globulin (GLOB), triglyceride (TG), high-density lipoprotein (HDL) and low-density lipoprotein (LDL) in serum (P<0.05). No significant differences in the activities of alanine aminotransferase (ALT), aspertate aminotransferase (AST) and alkaline phosphatase (ALP) in serum among groups (P>0.05). However, fish fed the diet containing 0.1% Gln could significantly improve the activities of catalase (CAT), glutathione peroxidase (GSH-Px) in liver and superoxide dismutase (SOD), GSH-Px in muscle (P<0.05). Phagocytosis index of macrophages from head-kidney showed an increasing trend with the dietary Gln addition increasing, and 0.2% and 0.4% groups were significantly higher than control group (P<0.05), but no significant difference was found between 0.2% and 0.4% groups (P>0.05). The results indicate that diet adding 0.1% to 0.2% Gln can improve the antioxidant capacity and non-specific immunity of juvenile yellow catfish.

Key words： yellow catfish (Pelteoobagrus fulvidraco); glutamine; hematological characteristics; antioxidant function; non-specific immune

Cite this article

ZHANG Jie, CHEN Haimin, ZHOU Qicun, ZHU Fangzhou . Effects of Glutamine on Antioxidant Capacity and Non-Specific Immunity of Juvenile Yellow Catfish (Pelteoobagrus fulvidraco)[J]. Chinese Journal of Animal Nutrition, 2016 , 28(3) : 759 -765 . DOI: 10.3969/j.issn.1006-267x.2016.03.016

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