Scratch is good and many are using the wild bird feed with good success...it has a good protein percentage. The whole grain mix I got recently could be considered scratch grains and it's the usual stuff I add for winter feeding...barley, wheat, oats, cracked corn, BOSS.
They eat even less when this is added to the FF and seem more content, always did and this is one of the reasons I add a variety of whole grains in the winter. The other reasons are variety and cost effectiveness. Birds that are not laying do not need 100% layer mash/ration, so the mixed grains keeps them going in the winter. Now that I am fermenting, it should boost the protein absorption even more, thus getting more bang for the little bit of buck.
They eat even less when this is added to the FF and seem more content, always did and this is one of the reasons I add a variety of whole grains in the winter. The other reasons are variety and cost effectiveness. Birds that are not laying do not need 100% layer mash/ration, so the mixed grains keeps them going in the winter. Now that I am fermenting, it should boost the protein absorption even more, thus getting more bang for the little bit of buck.