1. Growth factors in the fish meal component of catfish diets;Andrews;J. Nutr.,1974
2. Soybean carbohydrates appear to restrict the utilization of nutrients by Atlantic salmon (Salmo salar L.);Arnesen,1989
3. The determination of chromium in animal feed and excreta by atomic absorption spectrophotometry;Arthur;Can. Spectr.,1970
4. Official Methods of Analysis,1984
5. Sulfur amino acids in food and feed ingredients;J. Assoc. Off. Anal. Chem.,1985