Research Article

Identifying Bacteria with Public Health Significance from Farmed Nile Tilapia (Oreochromis niloticus), Zambia

Table 4

Occurrence of the different bacteria genera on farms A, B, and C.

Bacteria generaOccurrence n (%)Overall (n = 153)
Farm A (n = 60)Farm B (n = 51)Farm C (n = 42)

Acinetobacter2 (3.3)1 (2.0)0 (0.00)3 (2.0)
Aequorivita2 (3.3)0 (0.00)0 (0.00)2 (1.3)
Aerococcus0 (0.00)0 (0.00)2 (4.8)2 (1.3)
Aeromonas18 (30)1 (2.0)0 (0.00)19 (12.4)
Bacillus1 (1.7)1 (2.0)1 (2.4)3 (2.0)
Bordetella0 (0.00)3 (5.9)0 (0.00)3 (2.0)
Carnobacterium3 (5.0)7 (13.7)5 (11.9)15 (9.8)
Citrobacter4 (6.7)0 (0.00)1 (2.4)5 (3.3)
Clostridium2 (3.3)0 (0.00)1 (2.4)3 (2.0)
Corynebacterium0 (0.00)1 (2.0)1 (2.4)2 (1.3)
Dermatophilus0 (0.00)1 (2.0)1 (2.4)2 (1.3)
Enterococcus1 (1.7)2 (3.9)0 (0.00)3 (2.0)
Escherichia coli1 (1.7)0 (0.00)0 (0.00)1 (0.7)
Flavobacterium3 (5.0)2 (3.9)1 (2.4)6 (3.90
Klebsiella10 (16.7)0 (0.00)0 (0.00)10 (6.5)
Lactococcus0 (0.00)3 (5.9)5 (11.9)8 (5.2)
Lactococcus/Streptococcus0 (0.00)1 (2.0)0 (0.00)1 (0.7)
Listeria1 (1.7)0 (0.00)0 (0.00)1 (0.7)
Micrococcus0 (0.00)7 (13.7)3 (7.1)10 (6.5)
Planococcus0 (0.00)1 (2.0)1 (2.4)2 (1.3)
Proteus2 (3.3)0 (0.00)0 (0.00)2 (1.3)
Pseudomonas0 (0.00)8 (15.7)1 (2.4)9 (5.9)
Rhodococcus1 (1.7)1 (2.0)0 (0.00)2 (1.3)
Shewanella0 (0.00)1 (2.0)1 (2.4)2 (1.3)
Staphylococcus9 (15.0)4 (7.8)13 (31.0)26 (17.0)
Streptococcus0 (0.00)1 (2.0)0 (0.00)1 (0.7)
Vagococcus0 (0.00)0 (0.00)1 (2.4)1 (0.7)
Unidentified bacteria0 (0.00)5 (9.8)4 (9.5)9 (5.9)

The table shows occurrence of the different bacteria genera isolated from the three farms.