Risk factors associated with within-herd transmission of bovine leukemia virus on dairy farms in Japan
1 Epidemiological Research Team, National Institute of Animal Health, 3-1-5, Kannondai, Tsukuba-shi, Ibaraki, Japan
2 Research Team for Viral Diseases, National Institute of Animal Health, 3-1-5, Kannondai, Tsukuba-shi, Ibaraki, Japan
BMC Veterinary Research 2010, 6:1 doi:10.1186/1746-6148-6-1Published: 7 January 2010
Additional file 1:
Questionnaire used for the sero-epidemiological survey of the enzootic bovine leukosis in Japan, 2007. The questions inquired about cattle housing conditions, cow replacement, provision of own grazing area or free range on the farm, the presence of horseflies in summer, dehorning, the use of plastic sleeves for rectal palpation, change of needles used for herd vaccination, colostrum feeding, and general data on herd demography.
Format: DOC Size: 35KB Download file
This file can be viewed with: Microsoft Word Viewer