Zinc oxide enriched peat influence Escherichia coli infection related diarrhea, growth rates, serum and tissue zinc levels in Norwegian piglets around weaning: five case herd trials

Table 3 Pathotyping and virotyping of E. coli strains isolated during trials at Farms 1 to 5

Farm	Pathotype	Virotype	Fimbriae and toxin prevalence (%)
1	ETEC	STa:F5:F41	50.0
		LT:STb	12.5
		LT:STb:F4	37.5
2	ETEC	STa:STb	13.3
		STa:STb:F4	13.3
		STxA	13.3
		STb	46.7
		STb:F18	6.7
		LT:STb	6.7
3	ETEC	F18	100.0
4	ETEC	LT:STb:F4	100.0
5	STEC	Stx2e:F18	100.0

E. coli isolates from Farms 1 to 5. Pathotypes and virotypes are described. At Farms 1 to 4, the pathotype Enterotoxigenic E. coli (ETEC) was found. At Farm 5, Shiga-toxigenic E. coli (STEC) was present. At Farms 1 to 5, the predominant virotypes detected by multiplex PCR analysis were STa:F5:F41, STb, F18, LT:STb:F4 and Stx2e:F18, respectively

ISSN: 2055-5660