calf starter

noun, a type of food given to young calves after weaning

“It was my job to feed the calves, which wasn’t that easy. They’d all come towards you at once, and you’d have a stick, and you had to beat them back so that you could feed them. Yeah, and you’re trying to remember which calf you fed.”
“How would you feed them? With milk?”
“No. Dad would buy that calf starter …  and it came with the little cup.
“Yeah, the white powder.”
“We’d mix it with warm water, and it was for the calves.”