Tyson Foods cannot predict exactly when U.S. ranchers will start rebuilding the cattle herd in a meaningful way, CEO Donnie King said on Wednesday, as tight supplies squeeze the meatpacker's beef business.

Meat packer announced improving financial outlook this year after losses, consolidation
Virus has spread to new regions, infected cats, tigers, bears, seals and other animals
B.C. researchers found that the Okanagan could produce two thirds of its own food while maintaining exports
NDSU advises keeping livestock separate from potentially-infected poultry
National testing centre is needed to onboard internationally-trained vets, CVMA says
Mammal-to-mammal transmission of virus likely but unconfirmed, scientists say