Response of dairy cows to high doses of a sustained-release bovine somatotropin administered during two lactations. 2. Health and reproduction.

@article{Cole1992ResponseOD,
  title={Response of dairy cows to high doses of a sustained-release bovine somatotropin administered during two lactations. 2. Health and reproduction.},
  author={W. John Cole and Philip J Eppard and Birgitte Boysen and Kathleen S. Madsen and Roy Sorbet and M. A. Miller and Raymond L. Hintz and Timothy. R. White and W E Ribelin and Bruce G. Hammond},
  journal={Journal of dairy science},
  year={1992},
  volume={75 1},
  pages={111-23}
}
Eighty-two lactating Holstein cows in their first, second, or third lactation received either one, three, or five concurrent i.m. injections of a unit dose (.6 g) of zinc methionyl bST (sometribove) or five doses of the vehicle. Injections were given at 14-d intervals from 60 +/- 3 d postpartum until the end of lactation or necropsy. Thirty-eight animals were continued on treatment for a 2nd yr. Sometribove did not affect the incidence of ketosis, milk fever, tetany, or pneumonia. Digestive… CONTINUE READING