Use of bovine somatotropin in lactating dairy cows receiving timed artificial insemination.

@article{Moreira2000UseOB,
  title={Use of bovine somatotropin in lactating dairy cows receiving timed artificial insemination.},
  author={Fonseca Moreira and Carlos A. Risco and Maria Francisca Pires and Jagongo Ambrose and Melissa Drost and William Watters Thatcher},
  journal={Journal of dairy science},
  year={2000},
  volume={83 6},
  pages={1237-47}
}
Objectives of the research were to examine the effect of bovine somatotropin (bST) on pregnancy rates to a timed artificial insemination protocol and to test a resynchronization system with two consecutive synchronized services. Lactating Holstein cows (n = 403) were assigned to the following treatments: bST treatment (500 mg) was initiated at 63 +/- 3 d postpartum concomitantly with initiation of the timed artificial insemination protocol or bST treatment was initiated at 105 +/- 3 d… CONTINUE READING

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