I undersøgelsen blev blodprøver fra smågrisene i hvert kuld fra hver so testet for antistoffer mod Pasteurella multocida- toksin og mod Bordetella bronchiseptica.
In this study, blood was taken from piglets in each litter born from each sow, and tested for antibodies to Pasteurella multocida toxin and Bordetella bronchiseptica.