El-Husseiny, O. M., M. O. Abd-Elsamee, I. I. Omara, and A. M. Fouad,
"Effect of Dietary Zinc and Niacin on Laying Hens Performance and Egg Quality.",
International Journal of Poultry Science, vol. 7, issue 8: Asian Network for Scientific Information, pp. 757-764, 2008.
Abstractn/a
El-Husseiny, O. M., A. Z. Soliman, I. I. Omara, and H. M. R. El-Sherif,
"Evaluation of Dietary Methionine, Folic Acid and Cyanocobalamin (B12) and Their Interactions in Laying Hen Performance",
International Journal of Poultry Science, vol. 7, issue 5: orgz, pp. 461-469, 2008.
Abstractn/a