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Effects of dietary metabolizable energy and standardized ileal digestible lysine content of the diet on performance and egg quality of brown-egg laying hens from 18 to 41 weeks of age
Scappaticcio, R., H. Herrera, G. Fondevila, A. de Juan, L. Camara and G. Mateos
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Effects of varying protein/amino acid level of diets with or without protease on 30-50 wk layer performance and egg production parameters
Williams, V., K. Wamsley, K. Roberson and P. Adhikari