Effect of different East Coast Fever control strategies on fertility, milk production and weight gain of Sanga cattle in the Central Province of Zambia |
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Authors: | B Minjauw J Otte AD James JJ de Castro P Sinyangwe |
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Institution: | (1) VEERU, Department of Agriculture, University of Reading, PO Box 236, Reading, UK;(2) Animal Health and Production Division, FAO, Via delle Terme di Caracalla, 00100 Rome, Italy;(3) DVS, DAPH, Mulungushi House, PO Box 50060, Lusaka, Zambia |
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Abstract: | 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. |
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Keywords: | Ticks East Coast Fever Theileria parva immunization Sanga cattle production Zambia |
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