The main livestock feeds available at farm level are natural pastures, which are mainly grasses, and crop residues such as maize (Zeamays L.) stover. Generally, these feeds are of poor quality. Commercial concentrates are available but only a few farmers can afford to buy sufficient quantities for feeding their dairy cows (Thorpe et al. 1993). However, the region has great potential for dairy development because of the high demand for milk and other dairy products (Staal and Mullins 1996). The urban centres in the region, such as Mombasa, offer good markets for the dairy products and currently the price of milk is at US$0.40 per litre (US$1 = Ksh75). The region is milk deficient and more than 50% of the dairy products consumed in the region are supplied by other parts of Kenya (Staal and Mullins 1996).