Occurrence and Characterization of Salmonella Isolated from Large-Scale Breeder Farms in Shandong Province, China

Table 1

The prevalence of Salmonella in chicken farms.

Location	Variety	Sample type	No. of samples	No. of positive samples
Binzhou Farm 1	breeders	chicken embryos	180	63 (35.0%)
Binzhou Farm 2	breeders	fecal swabs	39	0
Heze Farm1	breeders	fecal swabs	60	0
Heze Farm2	breeders	fecal swabs	60	0
Liaocheng Farm1	breeders	fecal swabs	70	0