1. Ragaa, N.M., N.M. Abu Elala, A.M. Kamal and N.F. Kamel, 2017. Effect of a serine-protease on performance parameters and protein digestibility of cultured Oreochromis niloticus fed diets with different protein levels. Pak. J. Nutr., 16: 148-154.
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2. Ragaa, N.M., R.M.S. Korany and F.F. Mohamed, 2016. Effect of thyme and/or formic acid dietary supplementation on broiler performance and immunity. Agric. Agric. Sci. Procedia, 10: 270-279.
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3. Ragaa, N.M. and R.M. Korany, 2016. Studying the effect of formic acid and potassium diformate on performance, immunity and gut health of broiler chickens. Anim. Nutr., 2: 296-302.
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4. Abu-Elala, N.M., M.K. Galal, R.M. Abd-Elsalam, O. Mohey-Elsaeed and N.M. Ragaa, 2016. Effects of Dietary Supplementation of Spirulina platensis and Garlic on the Growth Performance and Expression Levels of Immune-related Genes in Nile tilapia (Oreochromis niloticus). J. Aquac. Res. Dev., .
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5. Kamel, N.F., Naela, M. Ragaa, R.A. El-Banna and F.F. Mohamed, 2015. Effects of a monocomponent protease on performance parameters and protein digestibility in broiler chickens. Agric. Agric. Sci. Proc., 6: 216-225.
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6. Elala, N.M.A. and N.M. Ragaa, 2015. Eubiotic effect of a dietary acidifier (Potassium diformate) on the health status of cultured Oreochromis niloticus. J. Adv. Res., 6: 621-629.
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7. Kamal, A.M. and N.M. Ragaa, 2014. Effect of dietary supplementation of organic acids on performance and serum biochemistry of broiler chicken. Nat. Sci., 12: 38-45.
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8. Bakeer, A.M., I.B. Shaheed, S.S.A. El Gayed, R.M.S. Korany and N.M. Ragaa, 2012. Spontaneous pathological affections of thyroid glands in different animal species with special reference to related biochemical parameters. Egypt. J. Comp. Pathol. Clin. Pathol., 25: 131-147.
9. Ragaa, N.M., A.A. Sabry and A.A. Hoda, 2008. Effect of dietary selenium source with or without probiotic on productive performance and immune status of broiler chicken. New Egypt. J. Med., 38: 335-342.
10. Naela, M.R., A.A. Hoda, F.F. Mohamed and A.A. Sabry, 2008. Effect of dietary chromium source with or without probiotic on productive performance and immune status of broiler chicken. Vet. Med. J. Giza, 2: 7-19.