Prevalence and Risk Factors Associated with Aeromonas hydrophila infection in Clarias gariepinus and Pond Water from Fish Farms in Kaduna State, Nigeria

[摘要] Clarias gariepinus remains important among fish species, and its farming in Africa has contributed immensely to fast growth in pisciculture. However, the successful rearing of fish is hampered by the occurrence of disease. The study was carried out to establish the prevalence, risk factors associated with, and antibiotic susceptible patterns of Aeromonas hydrophila isolates from C. gariepinus obtained from fish farms in the study area in Kaduna state, Nigeria. Two hundred and fifty-five (255) fish samples with their respective pond water from 30 randomly selected fish farms in Kaduna state were examined for the prevalence of Aeromonas hydrophila. The prevalence of A. hydrophila was 19.6% (50/255) and 53.3% (16/30) in fish and pond water respectively. A. hydrophila infected fish exhibited erosions and haemorrhages on the skin and fin and degeneration of the fin and barbell. The age, weight, and holding facilities were significantly associated with the prevalence of A. hydrophila. Multidrug resistance (MDR) ability ranging from two to seven commonly used antibiotics and twelve resistant patterns was also displayed by the isolates. The presence of A. hydrophila with associated MDR characteristics portends public and aquatic health hazards and, therefore, needs active surveillance and monitoring.

[学科分类] 生物科学（综合）

[关键词] Aquaculture;Antibiotics;Clarias gariepinus;management practise;multi-drug resistance