. 2009 Apr 8;16(6):830–834. doi: 10.1128/CVI.00455-08

TABLE 3.

Prevalence of anti-PCV2 IgG antibodies and PCV2 DNA in colostrum of nonvaccinated and noninoculated sows (group 1), sows vaccinated at 28 days of gestation (groups 2 and 3), and sows oronasally inoculated with PCV2b (groups 3 and 4) at 56 days of gestation

Group	No. of positive animals/total no. of animals (mean S/P ratio ±SE or log-transformed PCV2 DNA level ±SE)
Group	PCV2 antibodies	PCV2 DNA^a
1	0/3 (0.00 ± 0.00)	0/3 (0.00 ± 0.00)^A
2	3/3 (0.75 ± 0.22)	0/3 (0.00 ± 0.00)^A
3	3/3 (0.49 ± 0.12)	2/3 (2.41 ± 1.20)^A
4	3/3 (0.50 ± 0.14)	3/3 (4.68 ± 1.15)^B

Different superscripts within the column indicate significant (P < 0.05) differences in group mean PCV2 DNA amounts.