Transmission and genetic diversity of Enterococcus faecalis among layer chickens during hatch

Table 1 Prevalence of Enterococcus faecalis originating from Brown or White Lohmann layer parents flocks aged 45 weeks from the same farm.

Flock	Age of chickens (hours)	PCR positive *E. faecalis*	Total samples	Prevalence in %	CI^95% *	Yates corrected Chi² value	P
Brown	0	14	100	14.0	0.094-0.247	98.8	0.000
Brown	24	58	60	96.7	0.991-0.999
White	0	1	200	0.5	0.001-0.036	41.4	0.000
White	24	28	120	23.3	0.161-0.319

All isolates were confirmed to be E. faecalis by a species specific polymerase chain reaction (PCR).
* CI^95% is the 95% confidence interval.

ISSN: 1751-0147