Duck feed for Drake

[Luv Ducks]

My ducks seem to be two Rouen Hens for sure, one drake for sure and the other four are looking like drakes too that have been hatched out this year. No quacks and that makes me sad. I feed them one big scoop of Purina Flock Raiser, one big scoop of scratch and one big scoop of laying mesh. I was hoping the laying mesh would get me some eggs from those drakes but it's not working for me. lol