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Economics of herd rebuilding depend on cull rate, study finds

The study drew information from 17 farms registered with the council’s cow-calf production network from Western Canada and northern Ontario, said Brenna Grant, executive director of CanFax. It then modelled the farms’ recovery, based on a projected cull level (ranging from no extra culls to a 25, 50 or 75 per cent herd loss) and recovery strategy (purchased replacement stock versus replacement heifers).

“The overall objective that we wanted to answer with this study was: How do you minimize the equity drain on the operation?” Grant said.

A farm’s circumstances are rarely cut and dried, she said. Choices might hinge on availability of local feed or how strongly the producer wants to preserve herd genetics or level of concern about biosecurity when bringing in new stock. Cash flow also affects a producer’s ability to buy replacements.

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Assessing Welfare Resources During Late Finish - Dr. Anna Johnson & Emma Coursey

Video: Assessing Welfare Resources During Late Finish - Dr. Anna Johnson & Emma Coursey


In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Anna Johnson from Iowa State University and Emma Coursey from the University of Illinois discuss research evaluating welfare resources during the late finishing stage on commercial swine farms. They explain how feeder management, water use, space allocation, and pig health influence welfare outcomes and practical on-farm management. Listen now on all major platforms!

"Small resource issues can become larger welfare problems when multiple stressors interact across finishing barns."

Meet the guests: Dr. Anna Johnson / anna-johnson-05028a14 is the Morrill Professor of Animal Behavior and Welfare at Iowa State University. She earned her Ph.D. in Animal Sciences from Texas Tech University and completed her master's degree in Applied Animal Behaviour and Welfare at the University of Edinburgh. Her research focuses on practical solutions that improve farm animal welfare, including sow productive lifetime, animal-human interaction, environmental enrichment, and Precision Livestock Farming.

Emma Coursey / emma-coursey-183810241 is pursuing a Doctor of Veterinary Medicine degree at the University of Illinois College of Veterinary Medicine after earning a bachelor's degree in Animal Science from Iowa State University. Her academic interests include swine health, production, and animal welfare, with research experience evaluating welfare resources in commercial finishing pigs.