| Studies on Dairy Cattle Infected with Trypanosoma |
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Chang Ki Kim |
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Department of Animal Husbandry, Chungbug National College |
| 유우(乳牛)의 Trypanosoma에 관(關)한 조사(調査) |
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김창기 |
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충북대학 축산학과 |
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| Abstract |
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1. The length of Trypanossoma was $20{sim}40{mu}m$ (including flagellum) in dairy cattle in Korea, 2. Crithidia of Trypanosoma was found out in the head of depressed Tabanid fly and 77% in the flies. 3. The Trypanosoma in the tryptose blood agar was changed its form from 6 weeks after cultivation. 4. Infectious rate of Trypanosoma in dairy cattle was the same as in Korean cattle. 5. Infectious rate of Trypanosoma in dairy cattle was higher in summer than in winter. 6. No Trypanosoma was found in the blood from the jugular vein of calves born in winter. 7. Erythrocyte increased while leukocyte decreased in nummber in the blood of the cattle infected with Trypanosoma. |
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