TITLE:
The Occurrence of Bacteria of the Genus Aeromonas spp. in Oreochromis niloticus (Tilapia) and in the Water of Amateur Sport Fish Ponds and Sensitiveness to Antimicrobials
AUTHORS:
Adriana Dos Santos Silva, Ludmilla Santana Soares E. Barros, Danuza Das Virgens Lima, Daniela Simões Velame
KEYWORDS:
Public Health, Oreochromis niloticus, Microbiological Quality, Antimicrobial Resistance, Fish Farms
JOURNAL NAME:
Food and Nutrition Sciences,
Vol.10 No.1,
January
17,
2019
ABSTRACT: Since amateur fishing in fishponds has been on the increase in Brazil, there is a great concern on the microbiological quality of fish. One hundred and thirty-eight samples were collected during the dry and rainy periods in ten fish farms. Aeromonas spp. counts and tests for sensitiveness to antimicrobials were performed, coupled to the physical and chemical analyses of water. Tests revealed that 70% of samples were contaminated by Aeromonas spp., with water averaging 2.92 Log CFU/100 mL during the rainy period and 3.16 Log CFU/100 mL during the dry one. Fish contaminated by Aeromonas spp. averaged 2.58 Log CFU/100 mL during the rainy period and 3.53 Log CFU/100 mL during the dry one. Aeromonas spp. samples were multi-resistant to 2 or 8 antimicrobials in 62.5% of the samples. Ampicillin was the antimicrobial with the highest resistance percentage rate. Results showed that fish bred in amateur fish farms constituted a health risk for the population.