Ward, S.; Odde, K.; Kiracofe, G.; McKee, M.
(Kansas State University. Agricultural Experiment Station, 1979)
Weaning calves from cows that had not cycled after calving caused a higher percentage of cows to show estrous in the next 25 days than cows suckling calves. However, 78.3% of the nonsuckling cows had short cycles (7-10 ...