Korean Journal of Veterinary Research 1989;29(2):115-121.
A serological survey of bovine leukemia virus infection in dairy cattle in the suburban farming area of Japan
Takeo Sakai1, Won-Chang Lee2
1Department of Preventive Veterinary Medicine, College of Agriculture and Veterinary Medicine, Nihon University
2Department of Veterinary Medicine, College of Animal Husbandry, Kon Kuk University
일본도시근교낙농장(日本都市近郊酪農場) 유우(乳牛)의 우백혈병감염(牛白血病感染)에 대한 혈청학적(血淸學的) 조사연구(調査硏究)
사카이타케오1, 이원창2
1일본대학 농수의학부 수의학과
2건국대학교 축산대학 수의학과
A survey on the prevalence and distribution of antibodies to BLV was performed by the agar-gel immunodiffusion test over a period from 1983 to 1985. More than 2,407 serum samples were collected from Holstein cattle raised in the eastern part of Saitama prefecture where suburban dairy farm is operated. The average positive rate of this period was 4.9%. The rates of reactive samples varied from 2.6 to 9.8% among the age groups of cattle from younger than one year to 14 years of age. The positive rate increased gradually with age. The positive rates also varied widely from 0 to 21% among areas surveyed. Furthermore, there were large differences in this rate among farms even in the same area. The results were interpreted and discussed in connection with the enzootic feature of BLV infection.
Key Words: bovine lekemia virus, dairy cattle, serological survey

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