What was the “tipping point” that caused a health problem on farm? Todd Duffield, a veterinarian and dairy scientist at the University of Guelph in Canada, recommends using the W-5 approach to find out:

  • What is the problem? Define it, calculate incidence, and determine if it’s old or new.
  • Who has the problem? Does the problem occur in a certain age group of cows or body-condition score?
  • When did it occur?
  • Where did it occur? Determine if the affected animals are in the same pen or portion of the farm.
  • Why did it occur? Evaluate what has changed  —  cows, feed, people and facilities  —   to try to find the why.