Effects of dietary β-glucan on growth rate, antioxidant status, immune response, and resistance against Aeromonas hydrophila in genetic improvement of farmed tilapia (GIFT, Oreochromis niloticus)

嗜水气单胞菌 谷胱甘肽过氧化物酶 俄勒冈 丙二醛 过氧化氢酶 生物 罗非鱼 葡聚糖 抗氧化剂 超氧化物歧化酶 谷胱甘肽还原酶 食品科学 内科学 内分泌学 生物化学 渔业 医学
作者
Xiaomei Dou,Han Huang,Ying Li,Junming Deng,Beiping Tan
出处
期刊:Aquaculture Reports [Elsevier BV]
卷期号:29: 101480-101480 被引量:9
标识
DOI:10.1016/j.aqrep.2023.101480
摘要

This study was conducted to assess the influences of dietary β-glucan on growth rate, antioxidant status, immunity response, and resistance against Aeromonas hydrophila of genetically improved farmed tilapia (GIFT, Oreochromis niloticus). Four isonitrogenous and isoenergetic diets were formulated to contain 0%, 0.2%, 0.4%, and 0.8% β-glucan, respectively. Fish with similar size (average body weight, 3.43 ± 0.02 g) were randomly distributed into 12 tanks with 40 juveniles per tank and hand-fed to apparent satiation twice daily for 10 weeks. The fish were then challenged by A. hydrophila and their cumulative survival rate was recorded for the next week. No obvious influences on growth rate and feed utilization of GIFT were induced by dietary β-glucan addition (P > 0.05). However, dietary 0.4% β-glucan inclusion increased the serum high-density lipoprotein cholesterol level but decreased the triglyceride, total cholesterol and low-density lipoprotein cholesterol levels as well as alanine aminotransferase and aspartate aminotransferase activities (P < 0.05). Similarly, the increased intestinal superoxide dismutase (SOD), peroxidase and total antioxidant capacity (TAC) activities as well as the decreased intestinal malondialdehyde (MDA) and reactive oxygen species contents were also observed in GIFT fed diet with 0.4% β-glucan (P < 0.05). Dietary addition of 0.8% β-glucan increased the plasma SOD, glutathione peroxidase (GPx), catalase, and TAC activities, but reduced the plasma MDA content (P < 0.05). Dietary β-glucan inclusion regardless of levels improved the hepatic SOD, glutathione reductase, catalase, peroxidase, TAC, and acid phosphatase activities, but depressed the hepatic nitric oxide and MDA contents (P < 0.05). Plasma lysozyme activity was improved by the inclusion of 0.4% and 0.8% β-glucan (P < 0.05); plasma immunoglobulin M, complement 3 and complement 4 contents were improved by dietary β-glucan inclusion (P < 0.05); respiratory burst activity of macrophages was improved by the addition of 0.2% β-glucan (P < 0.05). Additionally, dietary β-glucan supplementation reduced the mortality rate and increased the relative percentage survival of GIFT challenged by A. hydrophila (P < 0.05). These results indicated that suitable β-glucan inclusion (0.4–0.8%) could promote the antioxidant status, immune response and disease resistance of GIFT, and β-glucan can be used as a feed additive for GIFT.
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
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
刚刚
cctv18应助欣喜的念寒采纳,获得10
1秒前
在水一方应助科研通管家采纳,获得10
3秒前
科研通AI5应助科研通管家采纳,获得10
3秒前
科研通AI2S应助科研通管家采纳,获得10
3秒前
酷波er应助科研通管家采纳,获得10
3秒前
CipherSage应助科研通管家采纳,获得10
3秒前
合适忆南完成签到,获得积分10
4秒前
在水一方应助毅诚菌采纳,获得10
6秒前
健壮不斜完成签到 ,获得积分10
8秒前
卿莞尔完成签到 ,获得积分10
8秒前
动漫大师发布了新的文献求助20
8秒前
ycccccc完成签到 ,获得积分10
9秒前
SYLH应助霜降采纳,获得10
11秒前
午休关注了科研通微信公众号
14秒前
科研通AI2S应助平淡南松采纳,获得10
14秒前
15秒前
zzc发布了新的文献求助10
16秒前
ESLG完成签到 ,获得积分10
17秒前
二十二点36完成签到,获得积分10
19秒前
子陵完成签到 ,获得积分10
19秒前
zyq发布了新的文献求助10
20秒前
zhaoxi发布了新的文献求助10
21秒前
小天狼星发布了新的文献求助10
25秒前
26秒前
ljc发布了新的文献求助10
31秒前
姚子敏完成签到,获得积分10
31秒前
打打应助空白采纳,获得10
31秒前
兜兜揣满糖完成签到 ,获得积分10
33秒前
Halo完成签到,获得积分10
36秒前
小天狼星完成签到,获得积分10
38秒前
39秒前
mylaodao完成签到,获得积分0
39秒前
DIDI完成签到,获得积分10
39秒前
40秒前
任性晓霜完成签到,获得积分10
41秒前
所所应助平淡南松采纳,获得10
41秒前
zzc完成签到,获得积分10
42秒前
大美女完成签到,获得积分10
42秒前
好好完成签到,获得积分10
42秒前
高分求助中
【此为提示信息,请勿应助】请按要求发布求助,避免被关 20000
Production Logging: Theoretical and Interpretive Elements 3000
CRC Handbook of Chemistry and Physics 104th edition 1000
Izeltabart tapatansine - AdisInsight 600
Introduction to Comparative Public Administration Administrative Systems and Reforms in Europe, Third Edition 3rd edition 500
Distinct Aggregation Behaviors and Rheological Responses of Two Terminally Functionalized Polyisoprenes with Different Quadruple Hydrogen Bonding Motifs 450
Individualized positive end-expiratory pressure in laparoscopic surgery: a randomized controlled trial 400
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 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3761774
求助须知:如何正确求助?哪些是违规求助? 3305573
关于积分的说明 10134709
捐赠科研通 3019590
什么是DOI,文献DOI怎么找? 1658226
邀请新用户注册赠送积分活动 792019
科研通“疑难数据库(出版商)”最低求助积分说明 754751