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作者

Guan, D. Sun, H. Meng, X. Wang, J. Wan, W. Han, H. Wang, Z. Li, Y.

作者单位

Department of Basic Medicine, Taishan Medical University, Shandong Province, a Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Lab of Aquatic Animal Nutrition & Environmental Health, Shandong Agricultural University, Shandong Province, 61 Daizong Street, 271018, China Yingsheng East Road, 271018, China

刊名

Fish & shellfish immunology

年份

2019

卷号

Vol.93

页码

500-507

ISSN

1095-9947;1095-9947

关键词

Antioxidant capacity Chitooligosaccharides Disease resistance GIFT tilapia Growth Immune response

摘要

A feeding trial was conducted to evaluate the effects of different molar mass chitooligosaccharides on growth, antioxidant capacity, non-specific immune response, and resistance to Aeromonas hydrophila in GIFT tilapia . A total of 600 fish were divided into four treatments with five replicates of thirty fish per tank. The results showed that the supplementation of 1000 Da and 3000 Da COS significantly improved the growth performance and feed utilization in GIFT tilapia. The trend of decreasing ...更多

A feeding trial was conducted to evaluate the effects of different molar mass chitooligosaccharides on growth, antioxidant capacity, non-specific immune response, and resistance to Aeromonas hydrophila in GIFT tilapia . A total of 600 fish were divided into four treatments with five replicates of thirty fish per tank. The results showed that the supplementation of 1000 Da and 3000 Da COS significantly improved the growth performance and feed utilization in GIFT tilapia. The trend of decreasing total cholesterol, triglyceride, ALT, and ACP activity was observed in fish fed diet supplemented COS. The supplementation of 1000 Da and 3000 Da COS significantly improved the serum TAC activity, and decreased the serum MDA and catalase activities . The lysozyme activity of blood, liver, and gills in fish fed diets supplemented with 1000 Da and 3000 Da COS was significantly higher than that of fish fed control diet after 56 days of feeding . The phagocytic activity and phagocytic index of fish fed diets supplemented with 1000 Da and 3000 Da COS were significantly higher than those of fish fed control diet. Post-challenge test showed that fish mortality in 1000 Da, 3000 Da, and 8000 Da COS groups were significantly lower than that of fish in control group . In conclusion, the present study indicated that dietary 1000 Da and 3000 Da COS supplementation could enhance more performance and immune response of GIFT tilapia than 8000 Da COS.收起

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