What you're raising is an issue that's there right now in the Criminal Code. The approach that Bill C-35 takes is really to model the existing offence, but to carve it out specifically for these particular animals. The issue, I think, is more fundamental with all of the provisions there, but it's there now in the Criminal Code between section 429 and the other animal cruelty provisions.
On April 27th, 2015. See this statement in context.