Livestock and water in developing countries (SSA) (Invited paper) BSAS Annual Conference (2 to 4 April 2007) Southport, UK Presented by Don Peden, ILRI, Addis Ababa, Ethiopia
LWP Schematic Rain Surface inflow Non-productive depletion Transpiration GW H 2 O recharge Trees Pas- ture Feed crops Food crops Grain Residues Evapo-ration Discharge & flood Contami- nation Available animal feeds Drinking Water Conserving strategies Benefits from plants Feed Sourcing strategies Imported feed Net Animal benefits Meat, milk, hide, manure, power & wealth Productivity- enhancing strategies
Case 1 Preliminary Comparison of WP in rainfed farming in Ethiopia * Source: LWP from ILRI; Grain WP from ECSA (2005); Tomato WP from SG2000. 0.73 Tomatoes Water harvesting & drip irrigation 0.68 Multiple animal products & services Rainfed mixed crop-livestock Wheat Barley Teff Commodity 0.18 0.18 0.28 WP (US$/m 3 ) Rainfed grain production System & Scale