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June 20, 2026Journal of Reproduction and DevelopmentOpen Access

Six things to know about how heat stress compromises fertility of the cow (and probably other mammals as well)

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Authors

PHPeter J. Hansen

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Overview

Review examines how heat stress impacts fertility in cows, suggesting implications for other mammals.

Key Points

  • To understand the effects of heat stress on female bovine fertility by reviewing primary literature.
  • Developed six propositions based on a review of primary literature regarding heat stress and fertility.
  • Focused on areas such as oocyte competence, embryonic development, and spermatozoa damage.
  • Investigated the interplay between hyperthermia and fertility outcomes.
  • Heat stress negatively affects oocyte competence and supports embryo death under elevated temperatures.
  • Embryos gain some resistance to heat stress post-activation of their genome.
  • Effects of heat stress on embryonic survival are minimal after the initial days of pregnancy.

Cite This Study

Peter J. Hansen (2026) studied this question.

synapsesocial.com/papers/6a362de1db0793dc1a535d78https://doi.org/10.1262/jrd.2025-098
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Heat stress as a multilevel disruptor of gamete function and early embryo development in cattle2026 · 1 citations
  2. 2Reproductive Challenges in Ruminants Under Heat Stress: A Review of Follicular, Oocyte, and Embryonic Responses2025
  3. 3Impact of heat stress on female reproduction in farm animals: challenges and possible remedies2024 · 3 citations
  4. 4Heat-Stress Impacts on Developing Bovine Oocytes: Unraveling Epigenetic Changes, Oxidative Stress, and Developmental Resilience2024 · 40 citations
  5. 528. Invisible Effects of Heat Stress on Swine Reproduction: Biology, Critical Stages, and Solutions2026