Duck has layed soft shelled egg for 3 days

[CarolinaQuackers]

Help! We have a black cayuga that is laying a soft shelled egg now for three days. We give them free choice oyster shells, and thier feed is oyster shell strong too. What else can we do. We are worried she might get one stuck. Any supplements? Please help! She acts totally fine and healthy otherwise.

 

[Miss Lydia]

She needs some help in the form of calcium gluconate or calcium citrate. I'll have to get @casportpony here for dosage.

 

[casportpony]

Can you go to the store and get some calcium citrate with vitamin d3 and give her pills orally? The dose I would use is ~50 mg per pound once or twice a day.