Problem solved! It was low temperature, off by probably less then half a degree.
I'm adding this here to help people in the future, since none of the Troubleshooting Guides I found have low temperature as "Probable cause" for "Pipped eggs, but died without hatching" symptom.
Problem solved! It was low temperature, off by probably less then half a degree.
I'm adding this here to help people in the future, since none of the Troubleshooting Guides I found have low temperature as "Probable cause" for "Pipped eggs, but died without hatching" symptom.
It's been very hard to hatch bobwhite in my incubator, and I'm wondering if my fan might be blowing air to fast (not right into the chicks/eggs, but the air "bounces" around and obviously ends up sucking moisture from the chicks).
I'm using a computer fan (12v), anyone know if it is to fast...
Thank you again for your response.
I can't understand how my incubator could lack oxygen, I have hatched coturnix, chickens and goose whit no problem. How different are bobwhites?
I bet that my problem resides in the humidity somewhere along the incubation but I'm not getting what I'm doing...
My bobwhite eggs, develop very good, but then they can't get out of the shell. They can't rupture the membrane, they just do a little crack the shell, then I need to go and crack the shell for them. It appears to me that the air chamber is too small so the run out of oxygen to keep going.
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Thank you very much, I will address all those issues, although I'm pretty sure the eggs position during incubation is correct. The other issues, humidity, oxygen, seem the cause to me. Thank you a lot!
It is 71% on the 2 eggs that are hatching.
My incubator has no vents, I think. I don't think it can sustain having vents(?), in fact every time I open it the temperature gets off by a lot, and humidity drops to around 50%.
My incubator has a fan that circulates the air.
Thanks for the advice of...
My temperature is 37.5ºC or 99.5F at incubation tray level, and 37.9ºC or 100.22F at the hatcher tray level, the humidity is 71% (but i'm not sure how accurate my hygrometer is).
I have two bob hens laying so I save the eggs until the older ones are 5 days old and I put them all in the incubator...
I am desperate because for the second year I'm trying to hatch bobwhites and I can't.
Last year, my breeders were 1 year old and in their first breeding season so I blamed the lack of fertility on that.
Now they are 2 years old, and all the eggs are fertile, BUT the chicks die.
The first egg...
After he crows (I think it is when he breaths in) he makes a sound almost like if he has a sore/clogged throat, I have search for video of a rooster that made the same sound and found this video, (listen carefully after the crow) http://www.youtube.com/watch?v=wEZUY_iDGZ0#t=10s
Does anyone know...