Autor: | P Sinyangwe, J Otte, A D James, B Minjauw, J. J. De Castro |
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Rok vydání: | 1997 |
Předmět: |
Veterinary medicine
Ecology business.industry animal diseases Theileria parva chemical and pharmacologic phenomena General Medicine biochemical phenomena metabolism and nutrition Biology biology.organism_classification Rhipicephalus Animal ecology Insect Science parasitic diseases Immunology bacteria East Coast fever Tick Control Livestock business Hyalomma Amblyomma variegatum |
Zdroj: | Experimental and Applied Acarology. 21:715-730 |
ISSN: | 0168-8162 |
DOI: | 10.1023/a:1018417004323 |
Popis: | Five different East Coast Fever (ECF) (Theileria parva infection) control strategies, based on tick control and/or ECF immunization, were tested in groups of traditionally managed Sanga cattle in the Central Province of Zambia over a period of 2.5 years. Two groups were kept under intensive tick control (sprayed weekly), one group immunized and one non-immunized. Two further groups were under no tick control, one group immunized and one non-immunized, while a fifth group was immunized against ECF and maintained under strategic tick control (18 sprays per year). Tick control increased milk production and weight gain but not fertility. Immunization had neither marked detrimental nor beneficial effects on the cattle productivity. The combination of strategic tick control and immunization resulted in the highest level of production and at the same time reduced the potential risk from other tick-borne diseases. |
Databáze: | OpenAIRE |
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