Livestock is poorly represented in N budgets for the African continent although some studies have examined livestock-related N flows at different levels. Livestock plays an important role in N cycling and therefore on N budgets including livestock-related flows. This study reviews the literature on N budgets for Africa to identify factors contributing to uncertainties. Livestock densities are usually modelled because of the lack of observational spatial data.

The authors started the discussion with the fundamental question: why are property rights important? The central hypothesis of this collaborative venture is that inappropriate property rights institutions lead to resource degradation. Two cases were distinguished: single-user resources and multiple-use resources. A good example of a single-user resource is land. Absence of secure property rights will result in land degradation, as incentives to improve the resource base do not exist under such conditions.

This conference proceeding is divided in four major sessions, viz, regional overviews; technology and adoption processes; markets and smallholder participation; and food safety and quality quality. The overviews include ILRI, HOPEA (a regional small scale start-up project for household poultry enterprises in Asia); SEARCAR & D programme; Asia-Pacific region and other global studies.

The resilience of rangeland soils and vegetation to different levels of grazing is still poorly understood. A study was conducted to determine the recovery of a rangeland grazed at different intensities and allowed a two-year rest period. The following treatments were applied to 0.5 hectare plots: 0, 4, 8 and 16 heifers per hectare, hereafter referred to as CL, X, 2X and 4X respectively.