1.
Attia Y, Hassan R, Shehatta M, El-Hady SBA. Growth, Carcass Quality and Serum Constituents of Slow Growing Chicks as Affected by Betaine Addition to Diets Containing 2. Different Levels of Methionine. Int. J. Poult. Sci. 2005;4(11):856–865. doi:10.3923/ijps.2005.856.865