Table 1

Herd description and health management practices

Herd AHerd B
Number of sows400600
Breed of sowsTopigs 20DanBred
Breed of boars (sperm)Belgian PiétrainBelgian Piétrain
Vaccination of the sows
 Atrophic rhinitisRhiniseng (Hipra) four weeks before farrowingPorcilis AR-T (MSD) 4 weeks before farrowing
 Parvovirus+Erysipelothrix rhusiopathiae Eryseng Parvo (Hipra) three weeks before breedingPorcilis Ery-Parvo (MSD) 2 weeks before breeding
Escherichia coli Suiseng (Hipra) three weeks before farrowingPorcilis coli (MSD) 3 weeks before farrowing
 PRRS(V)Ingelvac MLV (Boehringer Ingelheim) eight weeks before farrowingIngelvac MLV (Boehringer Ingelheim) applied twice/year
Vaccination of the quarantined gilts
 PRRS(V)Ingelvac MLV (Boehringer Ingelheim) four4 weeks after arrivalIngelvac MLV (Boehringer Ingelheim) 2 weeks after arrival
 PCV-2Ingelvac Circoflex (Boehringer Ingelheim) twice three weeks apartIngelvac Circoflex (Boehringer Ingelheim) twice 3 weeks apart
 Atrophic rhinitisRhiniseng (Hipra) twice four weeks apartPorcilis AR-T (MSD) twice 6 weeks apart
Management of the piglets
 Days 2–4Amoxicillin (intramuscular)Amoxicillin (IM)
Tail dockingTail docking
Iron (Uniferon, Pharmacosmos)Iron (Ferraject, Eurovet)
Toltrazuril (Baycox, Bayer)
 VaccinationsAt weaningN/A
 PRRS(V)Ingelvac MLV (Boehringer Ingelheim)N/A
 Mhyo and PCV-2Ingelvac FLEXcombo (Boehringer Ingelheim)N/A
Nursery (days 21–70)
 MedicationAmoxicillin days 21–28 (IF)Zinc oxide after weaning for 14 days at 2500 ppm (IF)
 FacilitiesOne unit with four compartmentsone unit with 12 compartments
12 pens/compartment4 to 12 pens/compartment
40 pigs/pen (0.26 m2/pig)20 to 26 pigs/pen (0.24 to 0.27 m2/pig)
 VentilationConventional mechanical ventilationconventional mechanical ventilation
Fattening unit (days 70–220)
 MedicationFlubendazole (days 70–75; IF), repeat every six weeksFlubendazole (day 84 to 91 and day 110 to 117; IF)
 Facilitiesthree fattening units, each having four compartmentstwo fattening units, each having 5 compartments
14 or 16 pens/compartment8 or 10 pens/compartment
12 or 15 pigs/pen (0.75 m2/pig)10 or 15 pigs/pen (0.75 m2/pig)
 VentilationMechanical door ventilationnatural ventilation
  • IF, in-feed medication; N/A, non-applicable; PRRS(V), porcine reproductive and respiratory syndrome virus; PCV-2, porcine circovirus type 2.