KARI Veterinary Research Department Annual Report 1983

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Date
1983
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Kenya Agricultural Research Institute
Abstract
As in the previous years, investigations on the major livestock diseases common to the three East African countries continued. The Bacteriology Division continued to produce the T. broth culture vaccine. Unlike previous years only 750,000 doses were produced and issued. Work continued to produce a suitable vaccine against contagious caprine pleuropneumonia and a comparison of a heat inactivated vaccine with ultrasonicated vaccine was made. The CCPP vaccine is in great demand in the pastoral areas. In Helminthology Division, the possibility of using T. saginata onchosphere antigen in the diagnosis of cysticercus bovis was investigated. The research on the use of certain species of Eucalyptus, such as E. globulus, for the control of snails continued throughout the year. In the Virology Division, production of tissue culture rinderpest vaccine continued throughout the year and some seven million doses were produced and issued. Screenina for neutralising rinderpest antibodies from serum samples submitted from the field continued. Malignant catarrhal fever virus was isolated from a ranch at Athi River. Research in Protozoology Division was confined to the studies on the mechanism of survival of Theileria annulata sporozoites with the bovine peripheral blood lymphocytes, effects of tick infestation on the Boran cattle (Bos /indicus), transmission of T parva from tick-naive tick resistant cattle, potential use of acaricide impregnated ear tags for control of ticks and comparison of chemotherapeutic drugs against Theileriosis under field condition.
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