Perry, R.C.; Corah, L.R.; Stevenson, J.S.; Beal, W.E.; Kiracofe, G.H.; Minton, J.E.; Cochran, R.C.; Brethour, J.R.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1991)
Twenty-six, Hereford × Angus, suckled
cows were utilized to determine patterns of
follicular development and associated changes in
reproductive hormones during postpartum
anestrus and first estrous cycles. Ultrasonography
per ...