1. The effect of threonine on mucin2 gene expression, intestinal histology and performance of broiler chicken;Moghaddam Sepehri;Ital. J. Anim. Sci.,2011
2. Threonine requirement of broiler from 22–42 days;Ayasan;Int. Poult. Sci. J.,2009
3. Reassessing amino acid levels for Pekin Ducks;Lemme;Poult. Int.,2003
4. Gastrointestinal mucus: Synthesis, secretion and function;Neutra,1987
5. Modern Nutrition in Health and DiseaseModern Nutrition in Health and Disease;Shils,2006