I recently switched my ferrets from kibble to Stella and chewys FDR and their poop has a very strong foul smell. Before it actually had little to no smell but now I can smell it just about as soon as they go. What could that possibly be a sign of?
what were they eating before? are they eating anything else? diet change can cause poop changes, I'm sure you know. Also, how are you serving the s&c? are you rehydrating it first, and what variety is it? I don't think that just chicken breast meat is a balanced enough diet.