Repeated disinfectant use in broiler houses and pig nursery units does not affect disinfectant and antibiotic susceptibility in Escherichia coli field isolates

Table 1 Cleaning and disinfection (C&D) protocols carried out at the start of the longitudinal study (conventional C&D) followed by C&D with 3 C&D protocols (A, B and C) carried out during 5 successive production cycles in each of the broiler houses or pig nursery units at the pilot farms

Conventional C&D (sampling after production cycle 0)			Broiler house (1050 m³)			Pig nursery unit
			A	B	C	A	B	C
	Cleaning	Product	Kenosan^®			No cleaning product
		Concentration	1%
		Method	foaming
	Disinfection	Product	CID20^®			MS Megades^®
		Concentration	3 l / 6 l water			1%
		Method	fogging			foaming
		Active components^*	QAC-GA-F			QAC-GA
C&D protocol (sampling after production cycle 1, 3 and 5)			Broiler house			Pig nursery unit
			A	B	C	A	B	C
	Cleaning	Product	Kenosan®			Kenosan®
		Concentration	1%			1.5%
		Method	foaming			foaming
	Disinfection	Product	Virocid^®	CID20^®	D50^®	Virocid^®	CID20^®	D50^®
		Concentration	2 l / 4 l water	4 l / 4 l water	4 l / 8 l water	0.25%	0.5%	0.5%
		Method	fogging	fogging	fogging	foaming	foaming	foaming
		Active components^*	QAC-GA	QAC-GA-F	PA-H₂O₂	QAC-GA	QAC-GA-F	PA-H₂O₂

^*QAC quaternary ammonium compound, GA glutaraldehyde, F formaldehyde, PA peracetic acid, H₂O₂ hydrogen peroxide

ISSN: 1746-6148