*5.4.1 Evaluation of feed*

One of the main factors preventing poultry feed suppliers from contemplating the use of alternative ingredients is the difficulty in evaluating the nutritional value of an ingredient because of the unavailability of suitable facilities for research and analysis. Over the years, there has been a lot of interest in assessing alternate feed resources, particularly from developing nations. However, frequent feed evaluation and constant updating of matrix values are essential for the effective use of these substances because there are so few published data on the digestible AA and apparent metabolizable energy (AME) of alternative feed ingredients.
