locally available feed.

[Stoney Meadow Maple]

My local feed store has Poulin products. Our ducks, we think are 4.5 weeks old, have been on purina flock raiser crumbles at 20 percent protein.
Here's what they have locally:
https://www.poulingrain.com/products/202/poultry-grower-finisher-crumblet. this is 15 percent protein, and states it has vitamins, prebiotics, and also mentions calcium.
The store also offers layer crumble at 16.5 percent protein https://www.poulingrain.com/products/203/layer-crumble
or game bird grower at 22 percent gamebird-starter-grower-crumble

I could go to TSC ( although I hate to given the current situation) and get purina duck feed which is clearly formulated for ducks but at 19 percent protein.
purina-duck-feed-pellets-40-lb-3004428-205
I far prefer to support our local feed store, but also really just want to do what's right by our ducks. If any of the Poulin products are good, preferable, or reasonable to feel them I would happily go for it. If I need to look elsewhere, please advise.

 

[Miss Lydia]

This is from Metzers web site maybe it will help. It's always good to support local especially in these times.
https://www.metzerfarms.com/NutritionalRequirements.cfm?affiliate=undef&CustID=25255354

 

[DuckGirl77]

I also use Poulin. I gave my ducklings Purina flock raiser, but it is hard to get ahold of compared to local feed, for sure! I used Poulin's gamebird starter (22% protein) once when my ducklings were very small still and I couldn't get to tsc, but the protein level is a little high for 4.5 week old ducklings I think I'm no expert on feed, so someone correct me if I'm wrong, but it is possible to mix feeds? (Gamebird or Chick Starter with Chicken Grower?)
As for layer feed, I give my ducks Poulin layer pellets supplemented with oyster shells.

Edit: https://metzerfarms.blogspot.com/2011/03/mixing-your-own-duck-feed-and-goose.html - on mixing feeds if you're interested

 

[Miss Lydia]

I’ve never had a problem feeding my flock 20% protein from Purina Flock Raiser. Never added anything to cut the protein.

 

[Isaac 0]

I’ve never had a problem feeding my flock 20% protein from Purina Flock Raiser. Never added anything to cut the protein.

X2!