vaccination of IC pigs was performed 9 weeks later (average age was 142.2 ± 3.3 days), i.e. 5 weeks
prior to slaughter, as recommended by the vaccineproducer.
Pigs were fed ad libitum a commercial diet containing 13.0 MJ/kg of metabolisable energy, 17% crude protein, 2.6% crude fat, 4% crude fibre, 6% crude ash, and 1% lysine. Feed intake was not recorded.