Epidemiological investigation of Mycoplasma Synoviae in native chicken breeds in China

BMC Veterinary Research

Table 4 Survey of M. synoviae infection in a farm of Zhejiang in December 2013

Flock	Week-old	Breed	Antibody of serum samples from breeder flock^b				Infection proportion of M. synoviae in hatching embryos^c
Flock	Week-old	Breed	Positive rate	AMn^a	CV	No. of sample	No. of positive	Infection proportion	Infection proportion of breed
1001	24 W	San Huang	100%	5648	40	16	0/27	0.00%	4.63%
1002	29 W	San Huang	100%	8634	47.6	16	2/27	7.41%
1003	33 W	San Huang	100%	9265	48.2	16	1/24	4.20%
1004	39 W	San Huang	100%	10,944	40.8	16	2/30	6.67%
1005	30 W	Silky	73.33%	2770	83.3	16	3/29	10.34%	9.25%
1006	54 W	Silky	100%	16,693	39.7	16	2/25	8.00%
1007	35 W	Qingyuan Ma	100%	11,545	34.4	16	5/32	15.62%	9.83%
1008	47 W	Qingyuan Ma	100%	11,320	34.9	16	1/29	3.45%

^a Arithmetic mean; ^bSerum samples were collected from the breeder flocks (1001–1008) on December 11, 2013 and detected by ELISA; ^c7–9 days-old embryos corresponding to the breeder flocks (1001–1008) were collected on December 20, 2013. Allantoic fluid was collected from embryos for M. synoviae antigen detection by PCR on December 20, 2013

ISSN: 1746-6148