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The effect of plane of nutrition on the response by Trypanotolerant cattle to infection with Trypanosomiasis

Published online by Cambridge University Press:  21 November 2017

D L Romney
Affiliation:
Natural Resources Institute, Chatham Maritime Chatham Kent ME4 4TB
A Njie
Affiliation:
International Trypanotolerance Centre, P.M.B. 14, BanjulThe Gambia
P Holmes
Affiliation:
University of Glasgow Veterinary School, Bearsden road, Glasgow, G611QH
M Gill
Affiliation:
Natural Resources Institute, Chatham Maritime Chatham Kent ME4 4TB
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Extract

Tse-Tse flies inhabit over 11 million km2 of Africa and are vectors of trypanosomes which cause trypanosomiasis in domestic livestock. The disease has a negative effect on productivity and is fatal in non tolerant breeds. The effect of nutrition on response to the disease was studied.

Thirty two N'Dama heifers (initial mean liveweight 113 + 17.0) were offered ad libitum andropogon hay plus 10.2 g/kg LW groundnut hay (GNH) (L) or GNH and 3.9 g/kg LW groundnut cake (GNC) (H). After 4 weeks on diet, half of each group were inoculated intradermally with trypanosomes (T. Congolense) (LI and HI). Intake was measured daily and liveweights weekly, while thrice weekly blood samples were examined for parasitaemia and packed cell volume (PCV).

Type
Cattle
Copyright
Copyright © The British Society of Animal Production 1994

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