Incubation Questions

davenkim

In the Brooder
6 Years
Dec 14, 2013
12
1
26
Texas
Hello all,

I'm new to Backyard Chickens. I've been fairly successful at hatching some chicks off & on for about 3 years now in a simple styrofoam still air Hova Bator. However, now I've moved up in size of operation & purchased a GQF 2500 Sportsman cabinet forced air. I live near Dallas, TX. My temp has been set at 100˚F & humidity is averaging 60%. I've been taking my eggs out to hatch in the Hova Bator so that I can leave my humidity alone in the cabinet. I've hatched ~15 eggs using this method with only about 1 or 2 dead in shell at end. However, they have been our own personal stock & have been smaller bantam eggs (some cochin, silkie, & sultan). We recently purchased some online tolbunt polish hatching eggs & tried. When I received them, the air sacs did look a bit messed up / detached some, but I continued anyway as I knew this was a possibility. I had 10 eggs that I put in that candled well & seemed fully formed with good sized air sacs. One pipped, then did nothing for 24 hours. I decided to help. He lived a couple of hours, but died. So, I determined I was not helping any more. Next day (actual day 21), one made it all the way to unzip egg & was pushing, but suddenly just stopped & died. 1 hatched naturally, but seems somewhat crippled / limps, but still eats & is finally getting stronger after 24 hours. 1 other pipped & started to unzip, but membrane looked dry, so I helped again. I was careful to make the movement of the chick turn prior to taking out as to mimic the finishing of the unzipping & it had no blood & was our healthiest, largest chick. 4 never pipped & upon post mort - did not pip through inner membrane. So, out of the original 10, we ended up with 3 live chicks, but one is limping. I know I probably opened the Hova Bator hatcher too much because I was starting to get panicky. Noted. My question is regarding the cabinet temperature & humidity. Should I adjust those any, or was my results probably because of the shipped eggs & the detached air sacs?
 
For some reason this site won’t let me save the page I want to. If you open this then follow “Incubation Troubleshooting” you can get a lot of help for possible causes.

http://urbanext.illinois.edu/eggs/res00-index.html

In general, if the embryo dies in the first week, it had something to do with what happened before the eggs went in the incubator, like handling. If it dies in the last week of incubation, it generally has something to do with the actual incubation, like the eggs were incubate upside down. That’s in general and there can be a lot of different causes at each stage.

But for those of yours that had trouble pipping, the messed up air cell makes a lot of sense to me.

Where are my manners? Welcome to the forum!
 
Thanks for the tips :). Love the website! Very informative!

Thanks!

Update!!! The one little chick that was limping is doing much better now!!! I put some tri-vi sol in the water & gave them all plenty of food & he is walking & hopping around with all of the others :jumpy


Another update!!! I talked with the supplier & she says that she commonly has the same experience with the Tolbunt Polish having a tough time emerging from the egg & that the membrane on this particular breed seems to dry out easily & seems excessively tough. She admits she frequently has to finally help hers out of the shells as well. So, hopefully, I wasn't necessarily doing anything wrong, but was just not accustomed to working with Tolbunts :confused:
 
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