https://tlcpetfood.com/product/puppyfood/

This is what the C Litter has been raised on. I made this switch because it's what my newest puppy is on, as it was recommended by her breeder. I like it because it's delivered directly from the factory in Canada( so it's nice and fresh every time, and I've never waited more than a few days for delivery), has multiple great sources of protein (to avoid any potential allergies), has great additives for development (like salmon oil), and has a lot of minerals that Appenzellers need that they may not get otherwise. The only downside is cost, but that comes with good food.

https://www.frommfamily.com/products/dog/four-star/can/

All of our litters have started on this wet food, and it's a good choice if you want to feed wet food. I like it because I'm not disgusted when I open the can, it smells and looks like real food. It has vegetables and meat, with some additives for preservation. I also like that their dry puppy foods have an option for large breed dogs (which Appenzellers basically are), as that is sometimes a good things.

This is what we feed our non-pregnant adult dogs. It's a solid food and keeps their coats healthy. It's ancient grains (which I don't understand the appeal, but some say that's good). All of the dogs like this food and eat it happily.