DO TRANSPORT REST STOPS PUT CALF HEALTH AT RISK?

Oct 31, 2023

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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Video: Porcine Gut Models in Nutrition Research - Dr. Li-Hsuan Chen

In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Li-Hsuan Chen, postdoc researcher at Aarhus University, discusses how porcine intestinal cell lines and organoids can help study the impact of nutrition on gut health. He explains how in vivo piglet trials identify diet-driven shifts in microbiota and metabolites, while in vitro models allow researchers to test specific metabolites, barrier function, immune markers, and future organ-on-chip systems before moving back to animal studies. Listen now on all major platforms!

"In vitro models can reduce early animal use by helping researchers screen nutritional candidates before moving back to in vivo trials."

Meet the guest: Dr. Li-Hsuan Chen / li-hsuan-chen-9a95a7279 is a postdoc researcher at Aarhus University in Denmark. Research focuses on porcine gut health, host-microbe interactions, cell lines, and organoids, with PhD work at Aarhus University studying how dietary protein and amino acid levels shape gut microbiota, microbial metabolites, and intestinal epithelial responses. Learn more from Dr. Li-Hsuan Chen on The Swine Nutrition Blackbelt Podcast, available on all major platforms.