Copper Sulfate has actually been used in poultry feeds since the 30s. Some early research suggested it instilled weight gain in broilers, but research since has definitely shown many negatives. In spite of this, it's still used in many feeds. It's not a good thing. Read your bag tags, folks.
after 1 minute I knew the vet was bullshit. he said it was a chemical and its not its a trace mineral and is needed. put it in the animals water kills all parasites. who needs vets I stop watching after two minutes made me sick.
