Alfredo Gutiérrez, A. G. R., Sánchez, C. and Mendoza, G. D. (2019) “Effect of including herbal choline in the diet of a dairy herd; a multiyear evaluation”, Emirates Journal of Food and Agriculture, 31(6), pp. 477–481. doi: 10.9755/ejfa.2019.v31.i6.1971.