What was the “tipping point” that caused a health problem on your farm? Todd Duffield, 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 within a certain parity of cows, stage of lactation or body condition score?
  • When did it occur? Is it tied to days in milk or to the calendar?
  • Where did it occur? Determine if the affected animals are in the same pen or portion of the farm.
  • Why it occurred? Evaluate what has changed — cows, feed, people, and facilities — to try and find out why.