Effect of modified dry period lengths and bovine somatotropin on yield and composition of milk from dairy cows.

@article{Annen2004EffectOM,
  title={Effect of modified dry period lengths and bovine somatotropin on yield and composition of milk from dairy cows.},
  author={Ehrin L Annen and Robert J. Collier and Mark A. McGuire and John L. Vicini and Joan M. Ballam and M J Lormore},
  journal={Journal of dairy science},
  year={2004},
  volume={87 11},
  pages={3746-61}
}
Dry periods of 40 to 60 d have been an industry standard because dry periods <40 d have resulted in reduced milk yields in the subsequent lactation by 10 to 30%. However, recent research has demonstrated no production losses for cows given a 30-d dry period. The current study evaluated milk production effects of shortened or omitted dry periods for cows at mature-equivalent production >12,000 kg of milk and treated with bovine somatotropin (bST). The study used 2 commercial dairies and one… CONTINUE READING
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