G.Q. Liu, A.M. Donoghue, J.R. Moyle, I. Reyes-Herrera, P.J. Blore, R.K. Bramwell, D.E. Yoho, K. Venkitanarayanan and D.J. Donoghue
International Journal of Poultry Science 11 ( 8 ): 536 - 540 , 2012