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Considerable progress has been made in defining and measuring criteria of trypanotolerance since the late 1970's, when ILCA, FAO and UNEP worked with researchers in 18 West and Central African countries to show clear relationship between level of trypanosomiasis risk and animal performance. Durin...
This paper reviews studies on the relationships between trypanotolerance and performance of cattle, and the genetics of trypanotolerance traits. Results of these studies are used to discuss the practical possibilities of increasing trypanotolerance through selection.
Approximately 90 village Ethiopian Highland Zebu cattle at Gullele in southwest Ethiopia were ear-tagged in March 1986 and they and their offspring monitored monthly until February 1996. In January 1991 a tsetse control campaign began using a synthetic pyrethroid cypermethrin pour-on applied mont...
Presents results of experiments to determine phenotypic & genotypic relationships of the abilities to control parasitaemia, resist anaemia or develop an immune response with animal performance in terms of daily weight gain, maintenance of packed cell volume levels and disease prevalence in trypan...
Tsetse populations and trypanosome prevalence in cattle were monitored from 1986 to 1993 in the Ghibe valley, southwest Ethiopia. From January 1991 to October 1993 between 2000 and 4000 cattle were treated at monthly intervals with a synthetic pyrethroid insecticide, cypermethrine high-cis. A dos...
Host ability to control the Development of trypanosomes is a major component of trypanotolerance. However, practical indicators of the parasite control capability have still to be identified as they rely on the availability of more precise diagnostic techniques that could be carried out at the fa...
Earlier research had provided clear indications of an ability of N'Dama cattle to acquire, over time, some control of the Development of parasitaemia following a T. vivax infection but not apparently, following a T. congolense infection. The objective of this study is to further assess the import...
A paper dealing with research conducted to reduce the effect of trypanosomiasis on animal production in Africa. Looks into the African Trypanotolerant livestock Network and discusses the exploitation of trypanotolerant breeds, trypanosome prevalence and animal performance. Also examines specific ...
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