Effects of M. oleifera leaf extract on the growth, physiological response and related immune gene expression of crucian carp fingerlings under Aeromonas hydrophila infection
文献类型： 外文期刊
作者： Zhou, Xixun 1 ; Providence-Forrester, Samantha 2 ; Fan, Junde 1 ; Liu, Bo 2 ; Zhou, Qunlan 2 ; Miao, Linghong 2 ; Shao, Peng 4 ; Li, Xiaoxiang 5 ;
作者机构： 1.Yueyang Yumeikang Biotechnol Co Ltd, Yueyang 414100, Peoples R China
2.Nanjing Agr Univ, Wuxi Fishery Coll, Wuxi 214081, Peoples R China
3.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Freshwater Fisheries & Germplasm Resources, Minist Agr & Rural Affairs, Wuxi 214081, Peoples R China
4.Yancheng Acad Fishery Sci, Yancheng 224051, Peoples R China
5.Yancheng Zhongsui Technol Co LTD, Yancheng 224000, Peoples R China
6.9 Jinxin Rd,High Tech Ind Pk, Yueyang, Hunan, Peoples R China
7.CAFS, FFRC, 9 Shanshui East Rd, Wuxi 214081, Peoples R China
关键词： Aeromonas hydrophila; M; oleifera leaf extract; Growth; Immune response; Crucian carp
期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.622； 五年影响因子：4.799 ）
ISSN： 1050-4648
年卷期： 2022 年 131 卷
页码：
收录情况： SCI
摘要： We evaluated the effect of dietary supplementation with Moringa oleifera leaf extract on the resistance to Aer-omonas hydrophila infection in crucian carp. The fish were randomly divided into five groups: the basal diet, the basal diet supplied with 0.25% (0.25 M), 0.5% (0.5 M), 0.75% (0.75 M) and 1.0% M. oleifera leaf extract (1.0 M) for 8 weeks. The growth, antioxidant capabilities, related immune genes as well as resistance to A. hydrophila infection were determined. The results showed that compared with the control group, the weight gain, specific growth rate in the group of 0.5% M. oleifera leaf extract, serum superoxide dismutase (SOD), albumin (ALB) and glutathione peroxidase (GSH-Px), the gene expression of hepatopancreas BTB and CNC homolog 1 (Bach1), NF -E2-related factor 2 (Nrf2), peroxidases (PRX) and NADPH oxidase (NOX) in the group of 0.5%-1.0% M. oleifera leaf extract increased, while feed conversion ratio, serum cortisol, red blood cell (RBC), alanine aminotransferase (ALT), malonaldehyde (MDA) decreased in the group of 0.5%-1.0% M. oleifera leaf extract before the stress. After the infection, the group of 0.5% or 0.75% M. oleifera leaf extract also could improve the serum ALB, hepato-pancreas Kelch-like-ECH-associated protein 1 (Keap1), Bach1, Nrf2, TOR, PRX and NOX and reduce cortisol compared with the control group. In summary, this study suggested that 0.5% M. oleifera leaf extract inclusion increased the growth performance, even had positive effects on physiological and immune function, and enhanced resistance against pathogenic infections in crucian carp. The optimum level of M. oleifera leaf extract for crucian carp was estimated to be 0.35%-0.48% based on polynomial comparison with FCR and SGR.
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