Objectives

The objectives of the analysis within this particular study are to determine the effects of tsetse control on livestock productivity of village cattle in south west Ethiopia exposed to high levels of trypanocidal drug resistance. The particular variables that are to be used in the analysis are:

• tsetse apparent density

• body weight, packed cell volume, trypanosome prevalence, trypanocidal drug treatment, separately for male and female adult cattle

• growth rate in calves, body weight at 12 months of age

• mortality rate in adult males, adult females and calves

• abortion rate and calf/cow ratio to reflect fertility rate

• herd size to reflect overall change in animal numbers

These variables are based on previous experiences in the analysis of such data (Rowlands et al., 1999)