The Canadian Food Inspection Agency revised the Transportation of Animals regulations a few years ago. Among other things, the revised regulations require longer and more frequent feed, water and rest stops during long-haul transport. Over the past few years, this column has summarized three research trials conducted by Karen Schwartzkopf-Genswein’s team at Agriculture and Agri-Food Canada’s Lethbridge Research Station. Those results repeatedly demonstrated that rest stops during long-haul transport do not provide measurable benefits for recently weaned beef calves.
In fact, new data suggests that those rest stops may pose a risk to calves. Nasal samples were collected and tested for respiratory bacteria during the three trials. The first results from those analyses have just been published (“Auction market placement and a rest stop during transportation affect the respiratory bacterial microbiota of beef cattle”; doi: 10.3389/fmicb.2023.1192763).
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