[Causes of mortality of N'Dama breed cattle on the plateau of Sankaran, Faranah, Guinea 1993-1994].

The principal causes of mortality of 280 N'Dama breed cattle heads are presented with data obtained in the plateau of Sankaran, Faranah, Guinea in 1993-1994. Diarrhea caused 40.81% and 58.62% of calves mortality between birth and six months and between six and 18 months, respectively. Pasteurellosis provoked 61.88% of cattle mortality up to 18 months of age. Hot and rainy seasons clearly increased the mortality rate of calves between birth and six months, whereas that of cattle increased notably up to 18 months of age during the rainy season. The absence of vaccination, sufficient care and new methods of husbandry were also responsible for cattle mortality.