Factors affecting pregnancy loss for single and twin pregnancies in a high-producing dairy herd.

@article{SilvadelRo2009FactorsAP,
  title={Factors affecting pregnancy loss for single and twin pregnancies in a high-producing dairy herd.},
  author={Noelia Silva-del-R{\'i}o and Jill Colloton and Paul M. Fricke},
  journal={Theriogenology},
  year={2009},
  volume={71 9},
  pages={1462-71}
}
Our objective was to determine the magnitude of, and factors affecting, pregnancy loss for lactating Holstein cows on a commercial dairy farm when diagnosed with twin (n=98) or single (n=518) pregnancies using transrectal ultrasonography. Pregnancy losses were assessed with records of non-viable embryos at first pregnancy examination and embryo losses between the first (25-40 d after AI) and second (48 and 82 d after AI) post-breeding pregnancy examinations. Among cows diagnosed with single… CONTINUE READING

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