Review of MSHMP PRRS Chart 2 ‐ Prevalence.

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.

Key Points: 

  • Chart 2 depicts the prevalence (e.g. the proportion of breeding herd in each of the PRRS status categories over time).
  • Since 2013, the proportion of farms that vaccinate (2vx) and that use field virus (2fvi) has not changed dramatically.
  • The cyclical pattern of farms in status 1 observed early in the program is slowly disappearing after 2019. 
Continue reading “Review of MSHMP PRRS Chart 2 ‐ Prevalence.”

Is the 2020-21 PRRS a different one?

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.

Key points

  • MSHMP data shows a slight lower PRRS incidence than in previous years
  • There has been PRRS outbreaks clustered in time and space in specific regions where the virus has generated important losses 
  • PRRS prevalence has been at an all-time high, contributing to the general perception of a higher burden of PRRS
Continue reading “Is the 2020-21 PRRS a different one?”

PRRS 2019-2021 Exponentially Weighted Moving Average by State

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.

This week, the MSHMP team shares the 2019-2021 PRRS incidence by state and how it influenced exponentially weighted moving average (EWMA).

Reminder: What is Exponentially Weighted Moving Average?

Keypoints

  • We continue to observe different EWMA patterns across states.
  • Iowa, Minnesota and Nebraska are undergoing an epidemic of larger magnitude and duration when compared to the previous year.
  • Even though fall and winter continue to be the seasons with overall higher incidence, sporadic cases in warmer months were observed throughout the states.
Continue reading “PRRS 2019-2021 Exponentially Weighted Moving Average by State”

Turnover events of animal caretakers and productivity in Ohio swine farms

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.

This week, we are sharing the results from a recent study conducted under the direction of Dr. Andreia Arruda at Ohio State University. In this project, researchers are looking at the impact of labor turnover on farm productivity.

Key Points

  • The US swine industry faces critical labor supply issues and is plagued by high rates of employee turnover.
  • This study investigated the association between employee turnover and productivity using a sample of eleven farrow-to-wean farms in Ohio.
  • There was a considerable amount of variability in the turnover rate for the year among the participating farms.
  • The occurrence of an involuntary turnover event (employee was terminated) was significantly associated with improvements in monthly number of pigs weaned per sow and pre-weaning mortality 2-months after the event.
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Antimicrobial use in wean to market pigs in the United States assessed via voluntary sharing

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.

This wee, Drs. Peter Davies and Randall Singer from the University of Minnesota, share a summary of their publication on the use of antimicrobials in wean-to-market pigs in the United States.

Key Points

  • Obtained data on antimicrobial use in the US swine industry through voluntary and confidential sharing of proprietary data
  • First substantial description of antimicrobial use in US swine beyond FDA sales and distribution data  
  • Critically important classes were only 5% of use, and fluoroquinolones and ceftiofur (drugs of most concern) were <1%
  • The project is ongoing and seeking further participation from interested systems for 2018 to 2020.
Continue reading “Antimicrobial use in wean to market pigs in the United States assessed via voluntary sharing”