I like the Merrick Wishbones as a treat, and honestly, they seem to last longer than the bully sticks for us. I never researched to find out if it was a different tendon, etc that would make it last longer.
I will say we had a bad experience with only one Merrick product, and it was the moo tube. Ours had a greasy texture and were dark, like they were smoked. Baxter did not get an upset tummy, but it did not agree with Cooper at all. I never reported it, and I still order from them, I just stay away from anything that could be smoked, have smoke flavoring, or has lamb in it as I know they don't agree with my 3 furkids. The yorkies are just like humans and what works for one will not work for all. That does not qualify as something being wrong with that product to me, it just didn't work for us
I switched to another kibble brand when Merrick started adding the vitamin kibbles, as mine would eat around them. So now, I do not order from Merrick as frequently. I have ordered bully sticks from AMD and Baxter's Mommy and got wonderful service from both, and no bad aftereffects
