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APA Citation
Abd El‐Hack, M. E., Alagawany, M., Amer, S. A., Arif, M., Wahdan, K. M. M., & El‐Kholy, M. S. (2018). effect of dietary supplementation of organic zinc on laying performance, egg quality and some biochemical parameters of laying hens. Journal of animal physiology and animal nutrition, 102(2), e542–e549. http://access.bl.uk/ark:/81055/vdc_100057839823.0x00003c