Sanga cattle
Sanga cattle is the collective name for indigenous cattle of sub-Saharan Africa. They are sometimes identified as a subspecies with the scientific name Bos taurus africanus. These cattle originated in East Africa, probably the western shores of Lake Victoria, and have spread down the river Nile (i.e. northwards), with depictions on Ancient Egyptian murals. Sanga are an intermediate type, probably formed by hybridizing the indigenous humpless cattle with Zebu cattle. However, archaeological evidence indicates this cattle type was domesticated independently in Africa, and bloodlines of taurine and zebu cattle were introduced only within the last few hundred  years. The timeline for their history is the subject of extensive debate. A combination of genetic studies with archaeological research, including cultural history, has clarified the question of the complex origin of African cattle in recent years. Thus African cattle descend firstly from an aurochs domesticated in the Near East. After their introduction to Egypt, about eight thousand years ago, they spread all over the Sahara which was then still green, up to West Africa. The north African pastoralists interbred their domestic cattle with wild African Aurochs of various regional races, both in the paternal and maternal lines over a  long time, which is reflected in the genetic distinctness of African cattle from both European / near Eastern and from Indian Zebu cattle. Hereby special adaptations to the African climate and conditions were introduced, that characterise African cattle - both those deriving solely from Aurochs and the Sanga cattle with their Zebu admixture. Morphological features of early African cattle, such as lyre-shaped horns, are depicted on murals of Ancient Egypt. Some authors date the first Sanga cattle, which originated through by crossing in of Zebu bulls in northeast and east Africa, from 1600 BC on. They are distinguished by having small  cervicothoracic humps, that are typical for (wild) Aurochs, instead of the high thoracic humps which characterize the Zebu. Breeds of Sanga cattle. Pure Sanga cattle. Sanga cattle (Bos taurus africanus x Bos indicus) Zenga cattle. Zenga = (Zebu x Sanga) Somalia) Blukwa cattle (Democratic Republic of Congo); Trypanotolerance in Sanga cattle. Trypanosomiasis poses a considerable constraint on livestock agricultural development in Tsetse fly infested areas of sub Saharan Africa, especially in west and central Africa. 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 . In Nigeria, research has shown that N'Dama is up to 2-3x (or 25%) more resistant than Nguni cattle. And F1 N'Dama x Nguni 16.5% better than pure Nguni. While in Kenya research conducted by KALRO has shown a similarity with crossbreeding N'Dama x Boran cattle.