Lamb, G.C.; Thompson, K.E.; Heldt, J.S.; Löest, C.A.; Stevenson, J.S.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1998)
Three treatments were initiated at approximately 15 days after calving and continued
for 4 weeks: 1) cows were suckled ad libitum by their calves (calf present [CP]); 2)
calves were present but nonsuckling 24 hr/day and ...