Table 4. Mean ± SD values of enrofloxacin (ER) and ciprofloxacin (CP) in feces following intravenous and subcutaneous administrations at doses of 5.0 and 7.5 mg/kg BW in Thai swamp buffaloes (n=5 per group).

Time (hr)	5.0 mg/kg				7.5 mg/kg
	Intravenous		Subcutaneous		Intravenous		Subcutaneous
	ER (µg/ml)	CP (µg/ml)	ER (µg/ml)	CP (µg/ml)	ER (µg/ml)	CP (µg/ml)	ER (µg/ml)	CP (µg/ml)
0–4	NF	NF	0.03 ± 0.003*	0.05 ± 0.04*	0.24 ± 0.05	ND	NF	NF
4–12	3.63 ± 1.12	3.46 ± 0.72	0.57 ± 0.33*	0.20 ± 0.17*	2.06 ± 0.13	0.51 ± 0.45	0.33 ± 0.06*	0.14 ± 0.06
12–24	0.10 ± 0.33	0.32 ± 0.03	0.62 ± 0.14*	0.28 ± 0.08	0.24 ± 0.10	0.20 ± 0.08	0.86 ± 0.53*	0.53 ± 0.21*

NF: no fecal collection; ND: not detected. *P<0.05 (statistically significant value if compared to the corresponding i.v. group).