Table 2 General information of case herds A and B
From: Clinical problems due to encephalomyocarditis virus infections in two pig herds
Herd A | Herd B | |
|---|---|---|
Herd size (number of sows) | 300 sows | 300 sows |
% of piglets raised as fattening pigs on the same site | 90 | 30 |
Type of batch farrowing system for sows | 4-week | 3-week |
Age of weaning (weeks) | 3 | 4 |
Breed of sows | Topigs | Danbred |
Breed of boar for artificial insemination | Belgian Piétrain | Belgian Piétrain |
Purchase of breeding gilts | No | No |
Floor structure | Fully slatted | Fully slatted |