Impact of In Utero Heat Stress on Subsequent Lactational Performance and Offspring Performance

This experiment evaluated the effects of heat stress across multiple generations. In a previous experiment, pregnant gilts were housed in heat–stress or thermos–neutral (control) conditions throughout gestation.

Key Points:

  • Piglets’ exposure of to heat stress while in utero has long–lasting effects.
  • For females, it results in altered milk composition, but not production, after first farrowing. In utero heat stress of dams did not affect the offspring’s market weight, days to market, loineye area or lean percentage at slaughter.

Read the full May/June 2016 issue of Research Review