Monica Natalie Wymann: Calf mortality and parasitism in periurban livestock production in Mali
PhD-thesis, Faculty of Science, 2005
Though cattle production is very important in the economy of Mali, domestic milk production does not cover the local demand. To increase local milk production, a modernization of livestock management in peri-urban areas has taken place recently, especially around Bamako. This change may have an impact on calf mortality and could therefore affect negatively the production of milk. So far very little is known about calf mortality in modernized private peri-urban livestock production in West Africa. It exists no comparison between mortality in modernized and in traditional management, which would be useful for an economic evaluation of the modernization process. The aim of this study is to overcome this gap, by determining calf mortality rates in both modernized and traditional managed herds and by analyzing the causes for mortality in the peri-urban area of Bamako. The focus lies especially on the effects of endo- and ectoparasites. The results reveal high calf mortality in peri-urban livestock production that has doubled with modernization of management. Main management problems are hygiene, surveillance and milk off-take. Vector and vector-borne diseases are of low importance, while gastrointestinal parasites are important causes of death in modernized livestock keeping. In view of the ongoing modernization of management this results are rather alarming.