Animal health: respiratory illness during sampling(yes/no), disinfection of the umbilical cord (yes/no),deworming of adults (yes/no), deworming of calves(yes/no), quarantine (yes/no), annual mortality rateof calves and adults, annual abortion and diarrhoearates, bovine herpesvirus 1 (BHV-1) seropositivity(serodiagnosis: yes/no), bovine viral diarrhoea virus(BVDV) seropositivity (serodiagnosis: yes/no), bovinerespiratory syncytial virus (BRSV) seropositivity (sero-diagnosis: yes/no) and bovine leukosis virus (BLV)seropositivity (serodiagnosis: yes/no).