My male duck, Guy, isn't a layer (duh) so I don't wanna feed him Layer Pellets b/c of their high Ca levels. He just turned 1 y/o. I was wondering if I can feed him DuMOR Grower/Finisher as his complete feed? I'm feeding soybean meal and DuMOR layer to my 7 chickens so I like the brand DuMOR. DuMOR Grower/Finisher has 15% protein and seems okay for adult ducks? But, I'd like a few more opinions. I do not care for Purina Mills feeds, personally. Plus, DuMOR Finisher is almost $4.00 cheaper per 50lbs verses Purina Flock Raiser! Now, I'm feeding Guy- scratch, some fruit as treats (he LOVES bananas), and all the weeds and bugs he can catch in my back yard too. I've read that scratch dose not have enough nutrition for ducks? Dose he need more protein? Any opinions welcome.