Effects of flow velocity on the growth performance, antioxidant activity, immunity and intestinal health of Chinese Perch (Siniperca chuatsi) in recirculating aquaculture systems

生物 超氧化物歧化酶 动物科学 水产养殖 鲈鱼 抗氧化剂 过氧化氢酶 食欲 溶菌酶 渔业 内分泌学 生物化学
作者
Tong Zhu,Runqiang Yang,Runguo Xiao,Liwei Liu,Songming Zhu,Jian Zhao,Zhangying Ye
出处
期刊:Fish & Shellfish Immunology [Elsevier BV]
卷期号:138: 108811-108811 被引量:4
标识
DOI:10.1016/j.fsi.2023.108811
摘要

The cultivation of Chinese Perch (Siniperca chuatsi) in recirculating aquaculture systems (RASs) has become a common trend. To explore the effect of flow velocity on the growth performance, antioxidant activity, immunity and intestinal health of Chinese Perch in RAS, 240 Chinese Perch with an initial weight of 70.66 ± 0.34 g were selected and randomly divided into 4 groups: control group [CK, 0 body length per second (bl/s)], low flow velocity (LF, 0.4 bl/s), middle flow velocity (MF, 0.8 bl/s) and high flow velocity (HF, 1.2 bl/s) for a 56-days experiment. The results showed that the flow velocity significantly increased the weight gain rate and feed intake in Chinese Perch. At 1.2 bl/s, the flow velocity increased the intestinal trypsin content and intestinal villus length. Furthermore, the relative expression of appetite-related genes showed a tendency to increase, and the relative expression of appetite-inhibiting genes had a significant decrease in HF. Regarding immune-related indicators, the activities of alanine aminotransferase (ALT) and aspartate transaminase (AST) were significantly higher in MF and HF. However, the activities of lysozyme (LZM) significantly decreased. Moreover, the activities of total superoxide dismutase (T-SOD) and catalase (CAT) were significantly higher in the CK group than in the other groups. Excessive flow velocity also caused the mRNA level of most immune-relevant genes to markedly decrease. With regard to intestinal health, the intestinal content sequencing results showed that MF could increase the intestinal diversity index of Chinese Perch. In addition, with increasing flow velocity, the relative abundance of Proteobacteria gradually increased, while the proportion of Firmicutes decreased. In conclusion, although the high flow velocity could promote growth, feeding, and digestion, inhibit fat deposition and increase the intestinal microbial abundance, the flow velocity caused stress, which leads to a decline in immunity and increases the death rate and the risk of intestinal disease in Chinese Perch. These findings provide theoretical support for the development of RASs for Chinese Perch.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
谢琉圭发布了新的文献求助10
1秒前
wu发布了新的文献求助10
2秒前
打滚完成签到,获得积分10
3秒前
LJJ发布了新的文献求助10
3秒前
睡觉了完成签到 ,获得积分10
5秒前
量子星尘发布了新的文献求助10
6秒前
乖猫要努力应助精明寻梅采纳,获得10
6秒前
AI完成签到,获得积分10
9秒前
xiaosu发布了新的文献求助30
10秒前
10秒前
谢琉圭完成签到,获得积分10
12秒前
领导范儿应助稳重的若雁采纳,获得10
15秒前
15秒前
16秒前
wu完成签到,获得积分20
16秒前
momo发布了新的文献求助10
17秒前
18秒前
田様应助123采纳,获得10
18秒前
22秒前
zying完成签到,获得积分10
25秒前
26秒前
双楠应助wangjue采纳,获得10
26秒前
31秒前
雪白尔岚发布了新的文献求助10
35秒前
35秒前
35秒前
慕青应助momo采纳,获得10
36秒前
从容冰夏完成签到,获得积分10
38秒前
38秒前
桐桐应助Candy采纳,获得10
39秒前
YR完成签到,获得积分10
41秒前
欧阳月空发布了新的文献求助10
41秒前
周em12_发布了新的文献求助10
42秒前
糊涂涂完成签到 ,获得积分10
42秒前
43秒前
45秒前
Zhang完成签到,获得积分10
46秒前
47秒前
47秒前
48秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989334
求助须知:如何正确求助?哪些是违规求助? 3531428
关于积分的说明 11253936
捐赠科研通 3270119
什么是DOI,文献DOI怎么找? 1804887
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809173