Asian Journal of Animal and Veterinary Advances1683-99191996-3289Academic Journals Inc.10.3923/ajava.2016.24.33Coturnix coturnix japonica)]]>HanafyA.M. KhalilH.A. E. KilanyOmnia HassanMarwa A. YusufMohamed S. IbrahimAbdelazim FaresI.M. HassanA.M. ReddyP.G. 12016111The objective of this study was to determine the optimal level of an Oil Mixture (OM) supplementation in drinking water to enhance the performance of older Japanese quail. Five hundred forty Japanese quail, 40 weeks old, were randomly assigned to 4 experimental groups (90 female and 45 male/group) that received OM at 0, 0.5, 1 and 2 mL/L1 of drinking water during the experimental period of 42 days. Egg production, egg quality, fertility and hatchability percentages were evaluated. Serum alanine aminotransferase (ALT), aspartate transferase (AST), total protein, albumin, urea, creatinine, total lipids, cholesterol and triglycerides were estimated. Livers were examined for histopathological changes. Results showed that birds received 0.5 mL/L1 of OM had significantly improved in most studied traits compared to the other treated and control groups. Laying rate, fertility, hatchability percentage, yolk index, internal quality unit and ovarian yellow follicle number were superior in 0.5 group than the other experimental groups. In contrast, birds received 1 or 2 mL had significantly higher concentrations of ALT and AST than birds that received 0.5 mL or control birds. Serum chemistry analysis revealed no significant effects due to treatments on kidney functions. Histopathological findings revealed disruption of normal hepatic architecture in birds that received 1 or 2 mL of OM supplementation compared to 0.5 mL and control birds. Our findings suggest that 0.5 mL/L1 of OM could be enough and useful in improving productive and physiological performance of laying Japanese quail.]]>Alcicek, A., M. Bozkurt and M. Cabuk,200434217222Al-Kassie, G.A.M., R.A. Abd-Al-Jaleel and A.M. Mohseen,2011212791282Abd El-Latif, A.S., N.S. Saleh, T.S. Allam and E.W. Ghazy,2013Rosemarinus afficinalis) and garlic (Allium sativum) essential oils on performance, hematological, biochemical and immunological parameters of broiler chickens.]]>21624Arachchige, P.G., Y. Takahashi and T. Ide,200655381390Botsoglou, N.A., P. Florou-Paneri, E. Christaki, D.J. Fletouris and A.B. Spais,200243223230Bozkurt, M., A. Alcicek, M. Cabuk, K. Kucukyilmaz and A.U. Catli,20098823682374Cabuk, M., S. Eratak, A. Alcicek and M. Bozkurt,20142014Choi, A.M., S.B. Lee, S.H. Cho, I. Hwang, C.G. Hur and M.C. Suh,2008Sesamum indicum L.) seeds.]]>46127139Christaki, E., E. Bonos and P. Florou-Paneri,201141126133Crowell, P.L.,1999129775S778SDuncan, D.B.,195511142Fernandez-Panchon, M.S., D. Villano, A.M. Troncoso and M.C. Garcia-Parrilla,2008in vitro results to in vivo evidence.]]>48649671Frankic, T., M. Voljc, J. Salobir and V. Rezar,20099495102Giannenas, I., E. Bonos, E. Christaki and P. Florou-Paneri,20132013Gopi, M., K. Karthik, H.V. Manjunathachar, P. Tamilmahan and M. Kesavan et al.,2014217Greathead, H.,200362279290Hernandez, F., J. Madrid, V. Garcia, J. Orengo and M.D. Megias,200483169174Hwang, D.,200020431456Khalil, H.A., A.M. Hanafy and A.M.M. Hamdy,20162016Kiso, Y.,200421191196Lee, K.J. and T. Shibamoto,2001Syzygium aromaticum and Eucalyptus polyanthemas S.]]>3911991204Lee, K.G. and T. Shibamoto,20025049474952Lee, K.W., H. Everts, H.J. Kappert, H. Wouterse, M. Frehner and A.C. Beynen,20043608612Lim, J.S., Y. Adachi, Y. Takahashi and T. Ide,2007978595Toghyani, M., M. Tohidi, A.A. Gheisari and S.A. Tabeidian,2010968196825Okokon, J.E., P.A. Nwafor and M.D. Ekpo,2010Croton zambesicus.]]>23160169Ozek, K., K.T. Wellmann, B. Ertekin and B. Tarim,201120575586Peric, L., N. Milosevic, D. Zikic, S. Bjedov and D. Cvetkovic et al.,201053350359SAS.,20018th Edn., 8.2 Version,Wu, W.H.,2007104341344Cabuk, M., M. Bozkurt, A. Alcicek, A.U. Catlii and K.H.C. Baser,200636135141NRC.,19949th Edn.,