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Tropical Animal Health and Production

, Volume 13, Issue 1, pp 63–69 | Cite as

Acutetrypanosoma vivax infection in dairy cattle in coast province, Kenya

  • G. N. Mwongela
  • R. M. Kovatch
  • M. A. Fazil
Article

Summary

In an outbreak of a fatal haemorrhagic disease in exotic dairy cattle (Friesian, Guernsey, Ayrshire and Jersey) on 2 farms in the Coast Province of Kenya, an investigation was conducted to establish the aetiological agent involved. Blood and lymph node smears made from clinically sick cattle indicated infection withTrypanosoma vivax. Five calves were then experimentally inoculated with heparinised blood from cows naturally infected withT. vivax. All calves had a highT. vivax parasitaemia, marked depression and fever; 2 developed blood-tinged diarrhoea 6 and 7 days respectively after blood inoculation. On 2 farms where the disease occurred cattle were treated with isometamidium chloride while others were left untreated. Cases of abortions, bloody diarrhoea and deaths dropped markedly in the treated animals whereas they continued to occur in the untreated animals.

Keywords

Como Dairy Cattle Trypanosoma Controles Bloody Diarrhoea 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Trypanosomose Aigue (Trypanosoma Vivax) Chez Les Bovins Laitiers Dans La Province Cotiere, Au Kenya

Résumé

A l'occasion de l'apparition d'une maladie hémorragique mortelle sur du bétail importé (Frison, Guernsey, Ayrshire et Jersiais) dans deux fermes situées dans la Province cotière du Kenya, des recherches ont été entreprises pour déterminer l'agent étiologique responsable. L'examen de frottis de sang et de ganglions lymphatiques en provenance d'animaux malades ont montré une infection àTrypanosoma vivax. Cinq veaux ont été expérimentalement inoculés avec du sang hepariné de vaches naturellement infectées avecT. vivax. Tous ces veaux ont manifesté une intense parasitémie avec dépression marquée et fièvre, deux ont fait une diarrhée à teinte hémorragique respectivement 6 et 7 jours après avoir reçu le sang infecté. Dans les deux fermes où la maladie est apparue des animaux ont été traités avec le Samorin alors que d'autres n'étaient l'objet d'aucun traitement. Les cas d'avortements, de diarrhée hémorragique et de mortalité diminuent de façon marqueé chez les animaux traités alors qu'ils ont persisté chez les animaux non traités.

Tripanosomiasis Aguda PorTripanosoma Vivax En Ganado Lechero De La Provincia Costa En Kenia

Resumen

Se presentó un brote de una enfermedad hemorrágica en ganado exótico (Fríesian, Guernsey, Ayrshire y Jersey) en dos haciendas en la provincia Costa de Kenia. Las investigaciones llevadas a cabo para establecer el agente etiológico dieron como resultado el hallazgo deTripanosoma vivax en frotis de sangre y nódulos linfáticos. Se inocularon 5 terneros experimentalmente con sangre heparinizada de vacas, naturalmente infectadas conT. vivax. Todos ellos presentaron una (parasitémia) alta, depresión marcada y fiebre; dos de ellos desarrollaron diarrea sanguinolenta 6 y 7 días respectivamente después de la inoculación. En las haciendas en donde ocurrió la enfermedad, el ganado se trató con Samorin dejando algunos controles sin tratamiento. Los animales tratados mostraron rápida recuperación, mientras que la mortalidad continuó en los controles.

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Copyright information

© Longman Group Limited 1981

Authors and Affiliations

  • G. N. Mwongela
    • 1
  • R. M. Kovatch
    • 2
  • M. A. Fazil
    • 3
  1. 1.Veterinary Research LaboratoryNairobiKenya
  2. 2.Walter Reed Project, Veterinary Research LaboratoryPO Kabete, NairobiKenya
  3. 3.Provincial Veterinary Officer, Coast ProvinceMombasaKenya

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