Gestational Thermal Environment Alters Postnatal Response to Heat Stress

  • Jay Johnson (Iowa State University)
  • Rebecca Boddicker (Iowa State University)
  • Maria Victoria Sanz Fernandez (Iowa State University)
  • Jason W. Ross (Iowa State University)
  • Lance H. Baumgard (Iowa State University)
  • Joshua T. Selsby (Iowa State University)


Pigs were exposed to heat stress (HS) and thermoneutral (TN) conditions in-utero. Post-weaning, they were exposed to acute heat-stress for a 24-hour period, and differences in physiological response between in-utero treatment groups were determined. Our results indicated that in-utero heat-stress had no effect on core body temperature; however the HS group had a larger cumulative difference (~50%) between rectal and skin temperatures compared to TN pigs. Preliminary, this provides evidence suggesting pigs exposed to in-utero HS may have an altered tolerance to post-natal HS.

Keywords: ASL R2738

How to Cite:

Johnson, J., Boddicker, R., Sanz Fernandez, M. V., Ross, J. W., Baumgard, L. H. & Selsby, J. T., (2012) “Gestational Thermal Environment Alters Postnatal Response to Heat Stress”, Iowa State University Animal Industry Report 9(1). doi: https://doi.org/10.31274/ans_air-180814-690

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Published on
01 Jan 2012
Peer Reviewed