[1_Rain_Drop]

The video I saw, The lady mentioned Tractor Supply but focused more on Purina.She called them. They admitted there was a problem with their feed "at one time"

Other brands she mentioned was Dumore feed, Producer Pride, Cal-Maine and Moark. (I wrote the names down quickly so they may be typos) It appears one company owns many other companies.

[tired&retired]

Usually feed is contract made regionally due to high shipping cost.

This is true for store brands but not Purina.

There are many micronutrients added to feed production. I could see some being missed in a production batch, but not several runs.