Genotype differences in the long-term response to different levels of energy supply of dairy cows kept under tropical conditions - Jenet, A.; Yimegnuhal, A.; Fernández Rivera, S.; Tegegne, Azage; Osuji, P.O.; McCrabb, G.J.; Wettstein, H.R.; Kreuzer, M. (Wageningen University & Research, 2003)