quarantine (yes/no), annual mortality rate of calves and adults, annual abortion and diarrhoea rates, bovine herpesvirus 1 (BHV-1) seropositive(serodiagnosis: yes/no), bovine viral diarrhoea virus(BVDV) seropositive (serodiagnosis: yes/no), bovine respiratory syncytial virus (BRSV) seropositive (sero-diagnosis: yes/no) and bovine leukosis virus (BLV)seropositive (serodiagnosis: yes/no).