oh and I think my reasoning for the 4 day switch last time was he was on chicken and rice (not hamburger) and we suspected a chicken allergy, so I wanted him off the chicken... the itching and scratching has gone down ALOT since then.. so at least I don't need to worry about scratching with the beef, I can keep that on longer.
http://www.yorkietalk.com/forums/yor...gy-advice.html this is my other thread discussing the allergy issues.