Table 9. Antibacterial efficacy of sodium hypochlorite on carcasses and contaminated water

Classification			50 ppm	100 ppm	150 ppm	200 ppm	SEM	p-value
Before treatment	Carcasses	General bacteria	8,791.7	8,791.7	8,791.7	8,791.7	23.61	0.99
	Carcasses	Escherichia coli	1,877.5	1,877.5	1,877.5	1,877.5	32.17	0.97
	Contaminated water	General bacteria	3.6×10⁸	3.6×10⁸	3.6×10⁸	3.6×10⁸	1.4×10⁷	0.97
	Contaminated water	E. coli	3.8×10⁷	3.6×10⁷	3.6×10⁷	3.6×10⁷	1.7×10⁶	0.98
After treatment	Carcasses	General bacteria	4,633.0^a	3,638.5^a	3,343.0^a	1,909.0^a	749.07	0.08
	Carcasses	E. coli	1,246.5^a	1,100.0^a	1,000.0^a	640.5^a	581.91	0.06
	Contaminated water	General bacteria	2.5×10^8a	2.3×10^8a	1.9×10^8a	1.6×10^8a	3.7×10⁷	0.06
	Contaminated water	E. coli	1.6×10^7a	1.5×10^7a	1.3×10^7a	1.3×10^7a	3.7×10⁶	0.07
Redution rate (%)¹⁾	Carcasses	General bacteria	47.31^b	58.64^b	62.00^ab	78.38^a	12.80	<0.05
	Carcasses	E. coli	33.65^b	41.47^b	46.75^b	65.96^a	13.75	<0.05
	Contaminated water	General bacteria	29.46^b	35.07^b	48.39^a	56.31^a	12.26	<0.05
	Contaminated water	E. coli	57.27^a	59.25^a	63.31^a	63.07^a	2.99	0.09

Each values are mean±SD of at least three repeated experiments.
(Initial bacterial count – Count of bacteria after 10 min) / Initial bacterial count × 100.
Values with different letters within a row are different at p<0.05.