1. Adeola, O and Bedford, MR. (2004) Exogenous dietary xylanase ameliorates viscosity-induced antinutritional effects in wheat-based diets for White Pekin ducks (Anas platyrhynchos domesticus) British Journal of Nutrition, 92, pp. 87 - 94.
2. Adeola, O and Sands, JS. (2003) Does supplemental dietary microbial phytase improve amino acid utilization? A perspective that it does not Journal of Animal Science, 81, pp. 78 - 85.
3. AOAC.(1990) Tryptophan in foods and food ingredients. In Official Methods of Analysis of the Association of Official Analytical Chemists15. ( pp. 1101 - 1102 ). Washington DC 20044 : AOAC.
4. Barnes, WC and Blakeney, AB. (1974) Determination of cereal alpha-amylase Starch, 26, pp. 193 - 197.
5. Cowieson, AJ. (2005) Factors that affect the nutritive value of maize for broilers Animal Feed Science and Technology, 119, pp. 293 - 305.