I've got several duck eggs I'm trying to hatch. Here's what I've done:
1. Candled at 10 days saw veins, look viable
2. Turned eggs 3 times a day for 25 days
3. Kept temperature at 100 degrees and humidity at 60%(still air incubator humidity measured with hydro found in home units) )

4. Egg kept at 100 degress except for time required to turn.
5. Eggs handled gently washed hands with soap and water beforetouching

6. Eggs kept level

I'm on day 31 tommorrow
Other than waiting to see if they hatch how do I tell at this point if they are still viable?
I can see the air sac on each egg but that's all. Other research says this breed should have hatched at 28 days. Raised a hatchling last year that mother duck had left this year a hawk killed the mother. Can handle post hatch, just need to get there.
Thanks
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I dont now much about ducks, but i think by now the eggs should be dark, I mean when you see with the candle method.
Have you notice a change during this time?

Paulo
I'm on day 31 tommorrow
Other than waiting to see if they hatch how do I tell at this point if they are still viable?

Try posting to sci.agriculture.poultry
I've got several duck eggs I'm trying to hatch. Here's what I've done: 1. Candled at 10 days saw veins, look ... mother duck had left this year a hawk killed the mother. Can handle post hatch, just need to get there. Thanks

Sounds like you did things right. If they are alive, you should see some movement at the air cell (duckling pushing against the membrane).

I never was successful at hatching swan eggs but the parents do it with ease. I read that I may not have had the humidity high enough at the end (waterfowl are not like parrots) and the cygnets couldn't pip the shell. They would make it right to the end and then expire. It always breaks my heart; I bond easily.

Sincerely,
Joanne
If it's right for you, then it's right, . . . . . for you!!!

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To Paulo the eggs are dark.
To Moose-wil post on sci.ag
Thanks to all
Joanne
Checked this morning one pipping at 33 days. I'll keep my fingers crossed.
New data I guess for wood ducks 33 days to pipping at 100 degrees in still air inc.
Next year if mother duck gets killed I' try 101 F and see if it makes a difference in hatch time.)
Thanks everyone and wish me luck the little guy,s not out yet.
Last question
Once pipping begins how long before hatching its been very quiet for four hours now.
Do I need to intervene?
Last question Once pipping begins how long before hatching its been very quiet for four hours now. Do I need to intervene?

My biggest error has been helping when I should not have.

Parrots can take two days from the first pip mark.

The pipping is caused by the chick's need for oxygen and the involuntary spasms of oxygen deprivation. He may have pipped enough to stop the spasms.

I'd leave him go. He's probably trying to absorb his yolk sac and withdraw his blood vessels into his little belly. If you step in too soon, you could see hemorrhaging.
It's a marvelous process.

Sincerely,
Joanne
If it's right for you, then it's right, . . . . . for you!!!

Play - http://www.jobird.com
Pay for Play - http://www.jobird.com/refund.htm
Looking for Love? - http://www.jobird.com/hearts.htm Garden Kinder CDs
http://www.jobird.com/cd/gardenkinderhome.html
New data I guess for wood ducks 33 days to pipping at 100 degrees in still air inc. Next year if ... see if it makes a difference in hatch time.) Thanks everyone and wish me luck the little guy,s not out yet.

You are lucky that they incubated to hatch at 100F. Max is usually 99.7 most people prefer 99 - 99.5. The still air incubator might make a difference
as temperature zones occur which might possibly have had an actual temp lower than 100 deg. If you try them at 101 deg you might just as well save yourself the effort and boil them instead.
Birdman.
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