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Last Updated: August 10, 2007
Heat stress will negatively impact reproduction. Some Florida producers stop breeding because conception rates drop below 5%. Possible reasons include:
- a 10 to 20% drop in dry matter intake,
- negative energy balance impacts blood hormone levels, and
- high body temperature may impact the fertile embryo, resulting in early abortion or lack of implantation.
Mike Hutjens, Extension Dairy Specialist, University of Illinois - Illini DairyNET
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