摘要
为探究鼠李糖乳杆菌在鱼菜共生系统中对罗非鱼生长特性与抗氧化指标的影响,开展单养罗非鱼组(T_(1)处理)、罗非鱼−水蕹菜组(T_(2)处理)和罗非鱼−水蕹菜−乳酸菌组(T_(3)处理)养殖试验。T_(1)和T_(2)处理投喂基础饲料,T_(3)处理投喂添加1×10^(8)CFU/g鼠李糖乳杆菌的基础饲料。结果表明,T_(3)处理罗非鱼末体长、平均质量增加率、末体质量、平均增长率较T_(1)处理均显著提高(P<0.05);T_(3)处理罗非鱼血清中的总蛋白(BCA)含量、血清和肝脏中的谷胱甘肽过氧化物酶(GSH-PX)活力和过氧化氢酶(CAT)活力较T_(1)、T_(2)处理均显著提高(P<0.05)。在饲料中添加鼠李糖乳杆菌能够更好地提高罗非鱼生长性能,同时优化鱼菜共生系统罗非鱼肠道菌群多样性,能够进一步提高罗非鱼肝脏和血清清除自由基的抗氧化能力,一定程度上提高鱼体代谢水平和免疫能力,最终提高鱼菜共生系统的生产效益。
To investigate effects of Lactobacillus rhamnosus on growth characteristics and antioxidant indexes of tilapia in an aquaponics system,an experiment was established with three groups,tilapia monoculture group(T_(1)),tilapia-water spinach group(T_(2)),and tilapia-water spinach-Lactobacillus rhamnosus group(T_(3)).T_(1)and T_(2)groups were fed with basal diets,while T_(3)group was fed with basal diets supplemented with 1×10^(8)CFU/g Lactobacillus rhamnosus.Results showed that end-body length,average weight gain rate,end body weight,and average growth rate of tilapia treated with T_(3)group were significantly higher than those of T_(1)group(P<0.05).Total protein(BCA)content in tilapia serum,activity of glutathione peroxidase(GSH-PX)and catalase(CAT)in tilapia serum and liver in T_(3)group were significantly higher(P<0.05)than those in T_(1)and T_(2)groups.Adding Lactobacillus rhamnosus to feed could improve tilapia growth performance.Optimizing diversity of intestinal flora of tilapia in aquaponics system could further improve antioxidant capacity of liver and serum to scavenge free radicals.And metabolic level and immune function of fish could be improved to a certain extent,which would ultimately improve production efficiency of aquaponics system.
作者
周子丘
阮洪宽
庄如豪
申旭红
郝彦菊
ZHOU Ziqiu;RUAN Hongkuan;ZHUANG Ruhao;SHEN Xuhong;HAO Yanju(Yantai Institute of China Agricultural University,Yantai Shandong 264670,China;Zhejiang Kesheng Feed Co.,Ltd.,Shaoxing Zhejiang 312073,China)
出处
《农业工程》
2025年第9期82-86,共5页
AGRICULTURAL ENGINEERING
基金
中国农业大学烟台研究院校内引导性基金项目(Z202303)。
关键词
鼠李糖乳杆菌
鱼菜共生
罗非鱼
生长
抗氧化
Lactobacillus rhamnosus
aquaponics
tilapia
growth
antioxidation
作者简介
周子丘,本科生,专业方向为水产养殖,E-mail:18974887927@163.com;通信作者:郝彦菊,博士,副教授,主要从事水产养殖生态学研究,E-mail:yanju_hao@126.com。
