首页|两株功能益生菌的筛选及其对黄颡鱼鱼苗生长指标和肌肉营养成分的影响

两株功能益生菌的筛选及其对黄颡鱼鱼苗生长指标和肌肉营养成分的影响

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为深入了解益生菌在水产养殖业的潜在益处,从鱼池底泥中分离得到两株微生物,分别为沙福芽孢杆菌(Bacillus safensis)BS-1和德尔布乳酸菌(Lactobacillus delbrueckii)LL-1,将这两株益生菌添加到黄颡鱼(Pelteobagrus fulvidraco)鱼苗的饲料中,进行为期28 d的养殖试验,评估其对黄颡鱼生长指标和肌肉营养成分的影响及效果.结果表明,相较于未添加益生菌的对照组(CK),添加BS-1d的BS组黄颡鱼鱼苗的体重、增重率和特定增长率都有显著提升(P＜0.05),饲料系数有显著优化(P＜0.05);添加LL-1的LL组黄颡鱼鱼苗的体重、增重率和特定增长率都有极显著提升(P＜0.01),饲料系数则有显著优化(P＜0.05).此外,两种益生菌对黄颡鱼鱼苗的肌肉营养成分有一定影响,BS组和LL组黄颡鱼的肌肉水分、灰分含量相较于CK组黄颡鱼的肌肉水分、灰分含量差别不大,但肌肉粗蛋白含量显著高于CK组(P＜0.05),BS组与CK组相比,肌肉粗脂肪含量无显著差异,而LL组的肌肉粗脂肪含量显著高于CK组(P＜0.05).
Screening of two strains of functional probiotics and their effects on growth indices and muscle nutrients of Pelteobagrus fulvidraco fry
To explore the potential benefits of probiotics in aquaculture,two microbial strains,Bacillus safensis BS-1 and Lactobacillus delbrueckii.LL-1,were isolated from pond sediment.These probiotics were incorporated into the diet of Pelteobagrus fulvidraco fry for a 28-day feeding trial to evaluate their effects on growth performance and muscle nutritional composition.The results indicated that,compared to the control group without probiotics,the addition of BS-1 significantly improved the body weight,weight gain rate,and specific growth rate of the P.fulvidraco fry(P＜0.05),and significantly optimized the feed conversion ratio(P＜0.05).The inclusion of LL-1 led to even more pronounced enhancements in body weight,weight gain rate,and specific growth rate(P＜0.01),with a significant improvement in feed conversion ratio(P＜0.05).Furthermore,both the probiotics BS-1 and LL-1,significantly increased the crude protein content in the muscle of the P.fulvidraco fry,with LL-1 also significantly elevating the crude fat content(P＜0.05).These find-ings suggest that the two probiotic strains play a crucial role in the sustainable and economical farming of P.fulvidraco.

Pelteobagrus fulvidracoBacillus safensisLactobacillus delbrueckiimusclenutrientsgrowth indices

瞿彬、叶若松、宋雪琳、徐文昌、张赫

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江西科技师范大学生命科学学院,江西南昌 330013

黄颡鱼(Pelteobagrus fulvidraco) 沙福芽孢杆菌(Bacillus safensis) 德尔布乳酸菌(Lactobacillus delbrueckii) 肌肉 营养成分 生长指标

江西省教育厅科学技术研究项目江西省教育厅科学技术研究项目江西省大学生创新创业训练计划项目江西省大学生创新创业训练计划项目

GJJ201133GJJ211133202411318013S202411318071

2024

10.3969/j.issn.1004-6755.2024.07.001

河北渔业
河北省水产学会 河北省水产技术推广站

河北渔业

影响因子：0.179
ISSN：1004-6755
年,卷(期)：2024.(7)