Manna pro 22% crumbles are just fine. Personally I don’t care for
manna pro as a company because of packaging/price gouging, but their feed is good quality.
Unfortunatly they don’t sell their feed in 50 pound bags, they only sell those tiny things, so to get what you need for a duck or goose you have to buy a lot of those tiny little plastic bags....and they charge a lot for them.
Sorry for the rant, it’s a pet peeve of mine.
But anyway 17%, 20%, 22% can be used as a maintenance feed for ducks and geese, 17% feeds are more suitable for adults in the middle of the summer to fall after they’ve molted and grown in their feathers.
During molting, if it’s cold, or if they’re laying they need more protein, like 20% to 22%.
You can also just keep them on 20 to 22% all year round, smaller breeds can have a little bit of a weight issue so they just need to be monitored a bit more, small breeds as in classic romans, tufted romans, Oregon mini geese, or just very small individuals.
If you have a sick underweight bird 30% gamebird is a good feed to put them on, it can also be an occasional nice treat to add in on really frigid nights. 30% should never be a maintenance feed, it is for putting weight on, so long term that will cause health issues like fatty liver.
If they’re laying you can get a layer feed, or just give access to oyster shells or egg shells if you have boys also, boys, females that aren’t laying, and babies should not have excess calcium because that can cause kidney and pancreas problems.
Checking the percentage labels on feed bags is a good idea, sometimes just because a bag is labeled for babies doesn’t mean it is, for example for awhile Dumor all flock had 4.00% calcium, which is the same percentage as most layer feeds, so in other words it was repackaged layer feed, not an all flock as advertised. Last I checked they changed their recipe though, who knows what it is now.
Geese and ducks like us are individuals and can have different individual metabolisms, especially for mixed breeds, what’s good for some is to much or too little for others so routine physical examination and weighing can help you determine if they’re of a healthy weight.