Korean Journal of Veterinary Service (한국동물위생학회지)

The Korean Society of Veterinary Service (한국동물위생학회)
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Treatment of acute bovine theileriosis in grazing Korean native cattle

방목중인 한우에서 발생한 급성 타일레리아증 치료

  • Lim, Yeoun-Su (Nonghyup Hanwoo Improvement Center) ;
  • Kim, Young Jun (Nonghyup Hanwoo Improvement Center) ;
  • Kim, Jongho (Animal Disease Diagnosis Division, Animal and Plant Quarantine Agency) ;
  • Kong, JooYeon (Animal Disease Diagnosis Division, Animal and Plant Quarantine Agency) ;
  • Song, Kunho (College of Veterinary Medicine, Chungnam National University)
  • 임연수 (농협 한우개량사업소) ;
  • 김영준 (농협 한우개량사업소) ;
  • 김종호 (농림축산검역본부 질병진단과) ;
  • 공주연 (농림축산검역본부 질병진단과) ;
  • 송근호 (충남대학교 수의과대학)
  • Received : 2019.03.12
  • Accepted : 2019.03.24
  • Published : 2019.06.30
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Abstract

Bovine theileriosis caused by Theileria sergenti is a tick-borne hematoprotozoan disease that is characterized by chronic anemia and fever in cattle. In this study, results of microscopic examination and PCR detection confirmed 17 Korean native cattle with emaciation and fever as acute bovine theileriosis caused by T. sergenti. Buparvaquone was injected as treatment, but was proved to be an inappropriate measure according to our study. After 6 months of injection, clinical signs and hematological values were recovered, but T. sergenti was still identified in blood sample as a result of microscopic exam and PCR. These results suggest that continuous management is necessary to control bovine theileriosis. Therefore, findings of this study may provide significant guideline on the control of bovine theileriosis.

Keywords

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Fig. 2. DNA of T. sergenti from bovine blood samples. Lane M, 100 bp DNA ladder; lane N, negative control; lane P, positive control; lane 1~17, bovine blood samples.

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Fig. 1. (A, B) Theileria protozoan parasites (arrow) in blood, Giemsa stain. ×1000. Bar=10μm.

Table 1. Mean hematological values for 17 cattle infected by T. sergenti after treatment

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