Impact of the Recombinant PRRSv Horsens Strain on the Reproductive Performance of Pregnant Sows

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

In this article published by Zoetis in collaboration with the University of Denmark and Copenhagen, the authors discuss that there are currently at least 18 commercially licensed modified live vaccines (MLVs) for the control of PRRS in the global market and because these vaccines are live viruses, precautions need to be followed in order to maintain their safety.

Continue reading “Impact of the Recombinant PRRSv Horsens Strain on the Reproductive Performance of Pregnant Sows”

Litter birth weight phenotype and its influence on embryonic and placental development at day 30 of gestation

The Science Page this week is a collaboration between the University of Alberta and Hendrix Genetics regarding low litter birth weight phenotypes in sows.

Key points

  • In every herd there is a population of sows that produce low birth weight piglets independent of the litter size
  • The litter birth weight phenotype (LBWP) is a sow-related phenotype
  • Low LBWP sows show delayed embryonic and placental development on day 30 of gestation
Continue reading “Litter birth weight phenotype and its influence on embryonic and placental development at day 30 of gestation”