Yolks keep breaking
What temps were you using?
what do you mean the eggs are broken? Like the shell is broken open and contents everywhere?
are you hand turning?
do you have small children who could be "helping"?
have you cracked the eggs open to confirm the yolks are broken?
if you havent cracked one open you wont know for sure, its a guess at best. Is this your first time incubating eggs?
ok since I am a visual person here are a couple of candled eggs (just took these)
Fresh duck egg from our Silver Appleyards laid in the last 2-3 days
Newly arrived SHIPPED egg for hatching ordered on Saturday. Shipped Monday, arrived today (Wednesday)