R. Ehrhardt

Decreased concentration of plasma leptin in periparturient dairy cows is caused by negative energy balance.

W. R. Butler, A. Bell, A. Bell, 2001, The Journal of endocrinology.

Effects of plane of nutrition and feed deprivation on insulin responses in dairy cattle during late gestation.

K. Schoenberg, R. Ehrhardt, T. R. Overton, 2012, Journal of dairy science.