Biological implications of longevity in dairy cows: 1. Changes in feed intake, feeding behavior and digestion with age.
Grandl, F., Luzi, S.P., Furger, M., Zeitz, J.O., Leiber, F., Ortmann, S., Kreuzer, M., Schwarm, A.
J. Dairy Sci. 99, 3457-3471, 2016