“…Trypanotolerant breeds, although equally susceptible to initial infection by trypanosomes, possess the ability to survive, reproduce and remain productive in areas of high tsetse challenge without the need for the use of chemicals to control the vector or drugs to control the parasite (
Dayo
et al , 2009;
Mattioli
et al , 1998;
Rege
et al , 1994;
Trail
et al , 1990;
Yaro
et al , 2016), where other breeds rapidly succumb to the disease (
Berthier
et al , 2015;
Mattioli
et al , 1998;
Murray & Dexter, 1988). The trypanotolerant trait is generally attributed to the taurine breeds of cattle in West and Central Africa, namely, the N’Dama and the West African shorthorn (WASH) (
Hoste
et al , 1992;
Maganga
et al , 2017;
Mattioli
et al , 1998;
Mattioli
et al , 1999;
Roelants, 1986;
Trail
et al , 1990;
Trail
et al , 1994). Similar observations have been made for the Orma Boran X Maasai Zebu (Orma Zebu) crossbred cattle in East Africa (
Maichomo
et al , 2005;
Mwangi
et al , 1998a;
Mwangi
et al , 1998b).…”