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PREVALENCE AND ANTIBIOGRAM OF GROUP B STREPTOCOCCUS [GBS] ISOLATED FROM A FRESHWATER CATFISH [CLARIAS GARIEPINUS, BURCHELL 1822]

Barika P.N., *Akani, N.P.

This research was carried out to determine the antibiotic susceptibility pattern of Group B Streptococcus [Streptococcus agalactiae] isolated from freshwater catfish [Clarias gariepinus] to some conventional antibiotics. Thirty[30] fish samples from five different locations were collected and analyzed using standard microbiological techniques. Twelve [12] S. agalactiae were isolated, the Total heterotrophic bacteria counts ranged from 1.28±0.21x107cfu/g to 1.89±0.08 x107cfu/g in Wimpey and Rumuokoro respectively. There was a difference [p≤0.05] in the bacterial population between the different markets. The highest occurrence of S. agalactiae was recorded in Creek road and Mile 1 Markets [25%] and the least was observed in Ozouba, Rumuokoro and Wimpey [16.7%]. S. agalactiae was highly susceptible to Ciproflox [83.3%] followed by Tarivid [66.7%]. The susceptibility pattern is as shown in decreasing order of resistance: Nalidixic acid and Augumentin [100%]> Ampicillin [91.7%]>Septrin and Streptomycin [75.0%]>Ceporex and Gentamicin[58.3%]>Pefloxacin [33.3]. All Streptococcus[100%]had a MAR index > 0.2which indicates a high risk source of contamination and often use of antibiotics. Public health awareness campaigns are advocated in markets on safe and hygienic practices in the handling and distribution of C. gariepinus as well as the implication of GBS infection. Drug abuse and misuse should be highly discouraged to reduce the prevalence of resistant strains due to GBS infections. Keywords:Streptococcus agalactiae,Clariasgariepinus, Prevalence, Antibiotic resistance

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