A Physiological Test for Sow Longevity

The objective was to determine whether vulva reddening and swelling in response to low levels of gonadotropins given to gilts at an early age could provide a screening tool to estimate potential longevity.

Key Points:

  • Farrowing rates and pigs born alive were similar between gilts responding to PG600 and early boar exposure.
  • Vulva redness and swelling in response to PG600 administered as early as 140 days of age is an accurate predictor of sow longevity.

Read the full November/December 2015 issue of Research Review