could this be the start of a Niacin Deficiency? I’m currently feeding them meatbird crumble and I’m adding in nutritional yeast. I was only adding 1 tablespoon per pound but then realized I read it wrong and was told to do 1 tablespoon per cup so I have done that. I’ve also just started tonight giving each of them 1ml Vitamin B complex. Anything else I should be doing?