Tuli are best adapted to desert type conditions with spase forage, and will thrive on a high percentage of woody species. Heat tolerant, parasite tolerant and in their natural environment have natural resistance to diseases such as Anaplasmosis, Babesiasis, Heartwater, sweating sickness etc, which are hard on exotic breeds. Carcase quality is similar to Aberdeen Angus in marbling, fine grained and slightly lower shear force than British breeds, and similar succulence, do not do well in intensive feedlotting as will flounder unless fed a high roughage ration, F1 crosses to commercial breeds do not have this problem. Mashona has the same beef quality traits, but is more adapted to bulky, low octane forage, both breeds are exceptionally fertile under harsh tropical conditions have small, robust calves, and are very docile due to their being herded for thousands of years by young herd boys, so no aggressive cattle have been bred, however they are excellent mothers, and still have strong protective instincts toward their calves (I had a large leopard population and lost less calves than neighbours) They cross well with all commercial breeds, expressing high levels of heterosis when bred to either European Taurus, Indicus or composites as they are unique genetics from a separate domestication event in modern day Tanzania. Bonsmara are the most performance tested breed, excellent feedlot performance in both pure and F1 steers. The Bonsmara does not have much marbling, but has a low shear force, they are well adapted to extreme climates, from the Kalahari and Namib eco systems in Southern Africa, to the extreme cold of Alberta (Thornbush Bonsmara). Here is a link to the Facebook page African Genetics in Australia -
https://www.facebook.com/groups/1845266292191223 Brows these forums for further research -https://sangacattle.webs.com/apps/forums/ I am available to answer any specific questions
