Which is the best reason to raise cattle in the desert? These dairies raise cattle in the desert, rather than on pastures. Zoom out to look at the region around this dairy. Hundreds of cows consume vast amounts of feed and water every day. Which is the best reason to raise cattle in the desert? Land is good for farming, and water is abundant here. Local demand for milk is especially high here. There is a large labor force for staffing diary operations. Land is inexpensive and imported water is cheap