bovine theileriosis 1
TRANSCRIPT
Bovine theileriosisA case study survey at chitwan,Nepal
Dr.Jibachha SahM.V.Sc (T.U.),VHRTC(P)LTD.B.N.P.-5,Lanku,Narayanagarh,Chitwan,Nepal.Phone:00977-56-570726,[email protected]
Theileriosis
• It is disease of exotic cattle.
• Characterized by high fever,enlargements of superficial lymph nodes,anemia.
• Prostration & death.
Etiology
• Theileria annulata,round,ovoid,rod shaped organism found within erythrocyte
.
• Blue kotch bodies found in lymphoblast of lymph nodes biopsy.
Pathogenesis of theileriosis
• When parasite – infected tick bites a susceptible animal.first parasite go to lymphnodes and spleen.
• Where they invade the lymphocyte multiply ,producing “Koch’s blue bodies”,are merozoints.
• Early macromerozoites produce micrimerozoites ,entered in blood as piroplasm.
Epidemiologyof theileriosis
District Theileria Babesia Anaplasma Negative Total
Chitwan 13 16 4 7 40
Gorkha 3 23 4 10 13
Total 16 23 4 10 53
Symptoms
• Enlargement of superficial lymph nodes
• High fever,105 –108 F
• Increase heart and respiratory rate
• Labored breathing,serous nasal discharged.
Cont…
• Coughing,restlessness,coat become rough
• In latter fever become decline,develop of anemia
• Jaundice also occurs followed by weakness.
• Prostration and death.
Hematology
• Fall hemoglobin level ( low as 2 gm/100 ml.).
• Decrease TEC (1.5 –2 million/cmm),PCV 7-9 % .
• Leukocytesis earlier followed by leucopoenia..
Cont…
• Anisocytosis,polychromasia(many co lour erythrocytes).
• Comma,ovoid,round shaped organism seen in smears.
Postmortem Change
• Emaciated ,pale mucous membrane.
• Distention of gall bladder with thick bile.
• Punch necrotic ulceration in abomasums.
• Petechial necrotic hemorrhage on kidney & lungs.
• Enlarged lymph nodes.
Treatment
• Buparva quine @ 2.5 mg per kg body wt I/m with supportive therapy.
• Diminazene diaceturate @ 10 mg /kg body wt + oxy tetracycline @ 20 mg/kg body wt. On four occasion with supportive therapy is beneficial.
prevention
• Prevention depends upon tick control.
• Tick can be eliminated by repeated dipping.
• In endemic area theleria vaccine “ Raksha Vac- T(Indian Immunological) can be used.