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Reports the viability, reproduction and associated growth rates achieved by grade Boran cattle maintained by chemoprophylaxis at Mkwaja Ranch in Tanzania, over the ten years, from 1973 to 1983.


Jibbo, J.M.C.Durkin, J.W.Light, D.Murray, M.Sones, Keith R.Trail, J.C.M.[Chemoprophylaxis: Its successful use in the control of trypanosomiasis in Boran cattle, at Mkwaja ranch, Tanzania]Chemoprophylaxis: Its successful use in the control of trypanosomiasis in Boran cattle, at Mkwaja ranch, Tanzania

Trypanosomosis is one of the major constraints on animal production in areas of Africa which have the greatest potential for significant increases in domestic livestock populations and livestock productivity. While the eradication of trypanosomosis from the entire continent is an unrealistic goal...


D'Ieteren, G.D.M.Authié, E.Wissocq, N.M.Murray, M.[Trypanotolerance, an option for sustainable livestock production in areas at risk from trypanosomiasis]Trypanotolerance, an option for sustainable livestock production in areas at risk from trypanosomiasis

Reports the productivity levels achieved by grade Boran cattle maintained by chemoprophylaxis at Mkwaja ranch (Tanzania) from 1973 to 1982. Analyses the effects of year and season of calving on birth, cow age, calf sex and area & location of herd on performance of the environmental influences. Ev...


Trail, J.C.M.Murray, M.Sones, Keith R.Jibbo, J.M.C.Durkin, J.W.Light, D.E.[Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk]Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk

While an increasing number of examples of innate resistance to disease are being identified in domestic livestock, resistance to the effect of trypanosomes is one of the best-recognized and most thoroughly investigated. Experimental and field studies reviewed in this chapter are providing the bas...


D'Ieteren, G.D.M.Authié, E.Wissocq, N.M.Murray, M.[Exploitation of resistance to trypanosomes and trypanosomosis]Exploitation of resistance to trypanosomes and trypanosomosis

Evaluates the productivity of grade Boran cattle maintained by chemoprophylaxis under severe trypanosomiasis risk at Mkwaja ranch, Tanzania; uses data based on more than 20,000 calving records over the 10-year period from 1973 to 1982; discusses environmental influences on performance traits and ...


Trail, J.C.M.Sones, Keith R.Jibbo, J.M.C.Durkin, J.W.Light, D.E.Murray, M.[Productivity of Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk]Productivity of Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk

Reproductive performance, mortality, growth, and culling and replacement rates based on 20000 calving records were evaluated for grade Boran beef cattle maintained with trypanosomiasis risk in Tanzania. Under ranching conditions, over a 10-year period in this area of high Glossina moistens morsi...


Trail, J.C.M.Murray, M.Sones, Keith R.Jibbo, J.M.C.Durkin, J.W.Light, D.E.[Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk]Boran cattle maintained by chemoprophylaxis under trypanosomiasis risk

Evaluates in detail how environmental and stress factorts affect trypanosome infection in N'Dama cows and their calves, the linkages with curative drug treatment given under the management regime prevailing, the linkages with anaemia control as measured by packed red cell volume (PCV), and the re...


Trail, J.C.M.D'Ieteren, G.D.M.Murray, M.Ordner, G.Yangari, G.Collardelle, C.Sauveroche, B.Maille, J.C.Viviani, P.[Measurement of trypanotolerance criteria and their effect on reproductive performance of N'Dama cattle]Measurement of trypanotolerance criteria and their effect on reproductive performance of N'Dama cattle

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