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A whole farm simulation model, Technology Impact Evaluation System (TIES), was used to assess ex-ante financial and economic impacts of immunization of dairy cattle against East Coast Fever (ECF) by the infection and treatment method (ITM) on smallholder farms from two sites in Kenya. Four alternative strategies of immunization in combination with different levels of acaricide usc were compared with the current acaricide-based method of control. The economic impacts were estimated using simulated net present values, present values of ending net worth, internal rates of return, benefit-cost ratios, annual cash farm incomes, cash expenses, and net farm incomes. The results from the analysis indicate that ECF immunization strategies are financially and economically viable on smallholder farms. Based on the risk preference for risk averse producers, the most preferred strategy was to adopt ITM in combination with a 75% reduction in acaricide use. The results obtained provide a good indication of the relative orders of magnitude of the farm level financial and economic effects of ECF immunization by ITM. The whole farm simulation model used for the analysis has the advantage of incorporating the risks involved in farm production. Whole farm simulation offers a flexible method for assessing the financial and economic impacts of alternative disease control methods on smallholder farms. , Corresponding author. and social uses for feasts and ceremonies. The main types of cattle in Kenya are the indigenous Zebu cattle (Bos indicus), the purebred breeds (Bas taurus), and crosses between the two. Purebred and cross-bred cattle are referred to as grade cattle. Grade cattle are highly productive but more susceptible to tropical diseases such as East Coast Fever (ECF) than the lower producing Zebu cattle.ECF is a disease of cattle caused by the parasite Theileria parva which is transmitted by ticks. 0169-5150/96/$15.00 © 1996 Elsevier Science B.Y. All rights reserved SSDl 0169-5150(95)01169-2

No abstract

A whole farm simulation model, Technology Impact Evaluation System (TIES), was used to assess ex‐ante financial and economic impacts of immunization of dairy cattle against East Coast Fever (ECF) by the infection and treatment method (ITM) on smallholder farms from two sites in Kenya. Four alternative strategics of immunization in combination with different levels of acaricide use were compared with the current acaricide‐based method of control. The economic impacts were estimated using simulated net present values, present values of ending net worth, internal rates of return, benefit‐cost ratios, annual cash farm incomes, cash expenses, and net farm incomes. The results from the analysis indicate that ECF immunization strategics are financially and economically viable on smallholder farms. Based on the risk preference for risk averse producers, the most preferred strategy was to adopt ITM in combination with a 75% reduction in acaricidc use. The results obtained provide a good indication of the relative orders of magnitude of the farm level financial and economic effects of ECF immunization by ITM. The whole farm simulation model used for the analysis has the advantage of incorporating the risks involved in farm production. Whole farm simulation offers a flexible method for assessing the financial and economic impacts of alternative disease control methods on smallholder farms.