Background

The sampling framework is outlined in Case Study 11; however, certain key features are repeated here.

The country is divided into four administrative regions - Hhohho, Manzini, Shiselweni and Lubombo (primary strata). These regions represent distinct socio-economic patterns and modes of livelihood. Within each of these regions there are 28 livestock sub-regions (secondary strata) - 6, 7, 7 and 8 for the four regions, respectively. It had been decided to include each of the 28 sub-regions in the survey and select dip-tank areas from each sub-region.

The homesteads that kept livestock in Swaziland (approximately 180,000) were defined as the population for the survey. The numbers of homesteads in each dip-tank area were known from census data obtained before the commencement of the survey.