Antibiotic and Disinfectant Susceptibility Patterns of Bacteria Isolated from Farmed Fish in Kirinyaga County, Kenya

Table 5

Inhibitory activity of disinfectants on bacterial isolates.

Bacterial strains	Sodium hypochlorite		Iodine		Hydrogen peroxide		Formalin		QAC
	1%	2%	0.5%	1%	1%	3%	1%	2%	1%	1.5%
Aer. hydrophila	_	_	_	+	+++	+++	++	++	_	_
Proteus spp.	_	_	+	+	+++	+++	++	+++	_	_
Kleb. pneumoniae	_	_	_	+	+++	+++	+	++	_	_
Citrobacter freundii	_	_	_	+	+++	+++	++	+++	_	+
Salm. enteritidis	_	_	_	++	+++	+++	++	++	_	_
Streptococcus spp.	_	_	_	+	+++	+++	++	+++	_	+
Escherichia coli	_	_	_	_	+++	+++	++	+++	_	+
Ser. marcescens	_	_	_	+	++	+++	++	++	_	_
Ps. aeruginosa	_	_	_	_	++	+++	+	++	_	++
Micrococcus spp.	_	_	+	++	++	+++	++	+++	+	++
Mean inhibition	_	_	_	+	++	+++	++	+++	_	+

User-recommended concentration by the manufacturer; the concentrations are as recommended by Noga [16]; QAC- quaternary ammonium compound; Aer.- Aeromonas; Kleb.- Klebsiella; Salm.- Salmonella; Ser.- Serratia; Ps.- Pseudomonas.