The effect of Amblyomma variegatum on liveweight gain of cattle in Zambia
- 1 July 1990
- journal article
- research article
- Published by Wiley in Medical and Veterinary Entomology
- Vol. 4 (3) , 327-330
- https://doi.org/10.1111/j.1365-2915.1990.tb00448.x
Abstract
The effect of the tick Amblyomma variegatum Fabricius on liveweight gain (LWG) on yearling cattle over 16 weeks was evaluated under quasi-natural conditions. Early in the exposure period when animals may have been in a state of suppressed metabolism, the effect of tick feeding on LWG was negligible. Overall, however, the difference in LWG between tick-free and tick-infested groups of cattle was 4.95 kg after 16 weeks. This difference between the groups was used to estimate a lower LWG of 48-63 g due to each engorging female tick.Keywords
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