隔离,表征和评估Bacillus rugosus作为水产养殖应用中的新益生菌潜力
Nermeen M Shokrak1, Nabilah Khairi2, Nur Hazlin Hazrin-Chong2
1Faculty of Aquatic and Fisheries Sciences, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
Scientific reports
|October 23, 2024
概括
一种新的Bacillus rugosus NM007菌株显示出作为水产养殖的益生菌的前景. 这种细菌增强了鱼的料消化和营养利用,改善了生长和减少浪费.
科学领域:
- 水生微生物学 水生微生物学
- 动物营养动物营养
- 益生菌研究的研究.
背景情况:
- 水产养殖对全球粮食安全至关重要,但由于鱼类的食消化和营养利用不佳,水产养殖受到影响.
- 消化效率低下导致养殖鱼的生长率下降和库存表现不佳.
- 益生菌通过增强消化功能和鱼类整体健康来提供潜在的解决方案.
研究的目的:
- 识别和评估一种新的Bacillus菌株作为水产养殖的潜在益生菌.
- 描述 Bacillus rugosus NM007 对于改善鱼类料消化和营养同化功能的有效性.
- 评估B. rugosus NM007在水产养殖中的安全性和益生菌潜力.
主要方法:
- 隔离和识别了一种新型细菌粗菌株 (NM007).
- 酶活性测定 (蛋白酶,氨酶,脂酶) 和聚合测试 (自动和协同聚合).
- 耐受性测试 (胆盐,pH,盐度) 和安全性评估 (抗生素敏感性,溶血活性,鱼类试验).
主要成果:
- 粗杆菌NM007证明了关键的消化酶 (蛋白酶,氨酶,脂酶) 的显著生产.
- 这种菌株表现出强烈的自我聚合和与常见的鱼类病原体 (Aeromonas sp.,Streptococcus sp. ) 的情况.
- B. rugosus NM007对胆汁盐,酸性pH和高盐度 (高达60 ppt) 具有耐受性,尼罗河鱼的安全性得到证实.
结论:
- 在水产养殖应用中, Bacillus rugosus NM007 具有有前途的益生菌特性.
- 这种新型菌株可以增强料消化,营养利用,并可能减轻鱼类的病原体挑战.
- B. rugosus NM007 是开发新的益生菌料添加剂的可行候选者,以提高水产养殖的可持续性.
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