The author has reversed years in his article of these two cited articles:
STASTNIK, O., KARASEK, F., ROZTOCILOVA, A., DOLEZAL, P., MRKVICOVA, E. and PAVLATA, L. (2014) The influence of feeding wheat with purple grain to performance and biochemical parameters of broiler chickens. Proceedings of the International Ph.d. Students Conference on Mendelnet.
The year should be 2016.
STASTNIK, O., MRKVICOVA, E., KARASEK, F., TROJAN, V., VYHNANEK, T., HRIVNA, L. and JAKUBCOVA, Z. (2016) The influence of coloured wheat feeding on broiler chickens performance parameters. Proceedings of the International Ph.D. Students Conference on Mendelnet.
The year should be 2014.
doi: 10.017/S0043933918000053, published in World's Poultry Science Journal 74 (2): 251-264, published online by Cambridge University Press, 12 March 2018.