Evaluation of natural porcine circovirus type 2 (PCV2) subclinical infection and seroconversion dynamics in piglets vaccinated at different ages

Table 1 Experimental design

Group	Total number of pigs	Number of bled pigs	Number of pens tested by OF samples		Treatment
Group	Total number of pigs	Number of bled pigs	Nursery unit^a	Fattening unit^b	3 weeks of age	6 weeks of age	10 weeks of age
3W-VAC	161	28	6	10	Vaccination^c	–	–
6W-VAC	161	28	6	10	–	Vaccination^c	–
10W-VAC	161	28	6	10	–	–	Vaccination^c
NON-VAC	161	28	6	10	–	–	–

^aApprox. 23 pigs were allocated in each nursery pen.
^bApprox. 11 pigs were allocated in each fattening pen.
^cAnimals were vaccinated with a single dose (0.5 mL) of CIRCOVAC® (Merial SAS, Lyon, France).

ISSN: 1297-9716