Effects of potential probiotic Bacillus velezensis K2 on growth, immunity and resistance to Vibrio harveyi infection of hybrid grouper (Epinephelus lanceolatus♂ × E. fuscoguttatus♀)

• Published in: Fish & shellfish immunology Vol. 93; pp. 1047 - 1055
• Main Authors: Li, Jing, Wu, Zhi-Bin, Zhang, Zhao, Zha, Ji-Wei, Qu, Shen-Ye, Qi, Xiao-Zhou, Wang, Gao-Xue, Ling, Fei
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.10.2019
• Subjects: acid phosphatase; Aeromonas hydrophila; Aeromonas punctata; Aeromonas veronii; Animal Feed - analysis; Animals; Antibacterial activity; Bacillus - chemistry; Bacillus velezensis; bacteria; Bass - growth & development; Bass - immunology; blood serum; death; Diet - veterinary; dietary supplements; disease resistance; Disease Resistance - immunology; Enterococcus casseliflavus; Epinephelus; females; fish culture; fish diseases; Fish Diseases - immunology; gene expression; gene expression regulation; genes; grouper; Growth performance; health status; Hybrid grouper; hybrids; immunity; immunoglobulin M; intestines; intraperitoneal injection; kidneys; Lactococcus garvieae; lysozyme; males; messenger RNA; pathogens; Probiotics; Probiotics - pharmacology; Random Allocation; Resistance; survival rate; Toll-like receptor 3; Toll-like receptor 5; Vibrio - drug effects; Vibrio - physiology; Vibrio alginolyticus; Vibrio harveyi; Vibrio Infections - immunology; Vibrio Infections - veterinary; vibriosis; Resistance; Probiotics; Antibacterial activity; Hybrid grouper; Growth performance; Bacillus velezensis

Nowadays, there is no suitable treatment for vibriosis in groupers. So an eco-efficient and environmentally friendly treatment is necessary for the grouper industry. Probiotic-feeding has been a promising strategy to control the bacterial pathogens in aquaculture. A new Bacillus velezensis strain na...