N'Dama

Originating in the Guinea highlands, they are also found in southern Senegal, Guinea-Bissau, the Gambia, Mali, Ivory Coast, Liberia, Nigeria, and Sierra Leone.

[1][2] They also show superior resistance to ticks and the diseases they carry and to Haemonchus contortus stomach worms.

Annual mortality rate is 12% overall, with 30% for calves under one year, 15% for one to two-year-olds, 5% for two to three-year-olds, and 2% for adults.

International research conducted by ILRI in Nigeria, the Democratic Republic of the Congo and Kenya has shown that the N'Dama is the most resistant breed.

[7] While in Kenya research conducted by KALRO has shown a similarity with crossbreeding N'Dama x Boran cattle.