Surveys have shown that feed intake varies by at least 25% among commercial farms. This may under-estimate the problem, since accurate data on feed intake is not readily available on many farms. Some of the data which is available, if estimated from long-term averages or calculated on an inventory basis, fails to identify short-term deviations from this average. Once feed intake has been identified as a problem, the next step, obviously, is to resolve it. Where does one look and what does one do to assist farms? Different genotypes are suspected of having different capacities for ad libitum feed intake; however, actual comparative data is very rare. One must be bvery careful in not ascribing too much of the a