The effect of embryonic death rates in cattle on the efficacy of estrus synchronization programs.

@article{Santos2004TheEO,
  title={The effect of embryonic death rates in cattle on the efficacy of estrus synchronization programs.},
  author={Jonathan Santos and William Watters Thatcher and Ricardo C. Chebel and Ronaldo L. A. Cerri and Klibs N Galv{\~a}o},
  journal={Animal reproduction science},
  year={2004},
  volume={82-83},
  pages={513-35}
}
Reproductive failure in inseminated cattle results from poor fertilization and embryo survival. Recent studies utilizing dairy and beef cattle indicate that fertilization rates are higher for nulliparous dairy and beef heifers and nonlactating beef cows than lactating beef and dairy cows and nonlactating dairy cows. Several factors affect fertilization rates, but the greatest impact was observed for high producing cows under heat stress, when fertilization was only 55%. Once fertilization has… CONTINUE READING
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