Table 1.

Salmonella seroprevalence among the 100 pigs included in the base line study.

Date	Type of pig	No. of animals	Age	Salmonella serology positive samples (%)	Average seroprevalence
10/8/20	Lactating sows	10	1 year	6 (60.0%)	59.0%
10/8/20	Weaned piglets	30	6 weeks	9 (30.0%)
17/8/20	Growing pigs	30	13 weeks	21 (70.0%)
17/8/20	Finishing pigs	30	22 weeks	23 (76.7%)
26/10/21	Lactating sows	10	1 year	7 (70.0%)	47.0%
26/10/21	Weaned piglets	30	9 weeks	3 (10.0%)
21/10/21	Growing pigs	30	13 weeks	18 (60.0%)
21/10/21	Finishing pigs	30	22 weeks	19 (63.3%)