Biological and economic impact of trypanosome infections on milk production in N'Dama cattle managed under village conditions in The Gambia
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Animal Production;50(pt. 3):383-389
Permanent link to this item: http://hdl.handle.net/10568/28281
Examines the productivity characteristics of village N'Dama cattle exposed to different levels of trypanosomiasis challenge in The Gambia over a 3-year period. 60 lactating cows in which Trypanosoma congolense and T. vivax had been detected on blood examination were compared with 50 cows which had not been found infected with trypanosomes during the monitoring period. The quantity of daily extracted during the 1st month of infection decreased by proportionately 0.25 in comparison to the amount extracted during the preceding month when parasites were not detected. The mean daily milk extracted for human consumption from uninfected cows durng a 6-month period was proportionately 0.26 higher than the mean for the infected cows.