The article specifically only mentions cereal crops like wheat and barley, so I can't comment on how other crops are being affected.
Canada's Grain Commission estimates that in the first week of June, 9400 tonnes of grain (wheat, barley, canola) in Alberta went to domestic feed.
The beauty of grain crop is that it can be stockpiled and stored for years, but not if livestock are eating those reserves.
Ultimately, this situation will only get worse, so farmers need to either adapt, restrict crops going to livestock, or find a different way to grow them.
Alberta grain farmers work hard for their money and are vital to food security and I believe they are struggling under corporate influence and government management. I hope this brings sustainable change for grain producers.