Genetic Architecture of Feed Efficiency in Mid-Lactation Holstein Dairy Cows

L.C. Hardie, M.J. van de Haar, R.J. Tempelman, K.A. Weigel, L.E. Armentano, G.R. Wiggans, R.F. Veerkamp, Y. de Haas, M.P. Coffey, E.E. Connor, M.D. Hanigan, C.R. Staples, Z. Wang, D.M. Spurlock