Diary & Notes ~ Air Cell Detatched SHIPPED Chicken Eggs for incubation and hatching

[Sally Sunshine]

oh and the to and from travel of the eggs and time enroute

 

[newtwinmom]

what a hatch woman!  holy molasses!!   can I ask if you have an image of your air cells to start before set? 

if air cells are detatched and BAD your out of luck period, curious as to age of eggs, and seeing the air cells at start help me guess at age. 

Never thought to take pics of the air cells before! They didn't strike me as overly large before set but then again I'm very very hands off in the beginning on the shipped eggs as I thought was recommended. Of nearly 200 eggs I had shipped to me this spring, I bet I can count on two hands the number of intact cells. Is that not normal for shipped eggs? Am I just in one of the USPSs kill-every-egg zones? This is my first year with shipped eggs. Maybe I don't completely understand what a detached cell is? I don't turn the eggs over, only tilt them. If the air cells moves to the side at all, I put it right down, mark it, and am certain to not tip it side to side again.

 

[newtwinmom]

oh and the to and from travel of the eggs and time enroute

The last batch came from WV, shipped on the 14th, arrived the 16th. But I've received eggs from six sellers this year (seven different shipments). I did receive one set that I questioned the age as the air cells were extra large but not this last group.

All the other shipments were PTI ("prior to ice" -an ice storm killed power for four days, 5dz eggs cold for 36 hours) and I attributed a lot of my poor hatches to the chilling the eggs took. However, this group was well controlled and on track I thought

 

[Sally Sunshine]

And always settle eggs 12-24 hours at room temp before setting them and treat all eggs differently as their air cell presents to you.... see shipped egg section hatching 101 article.



Quote:

Quote:

 

[winteree]

wow i didn't know their was that type of science behind it

 

[Sally Sunshine]

Not much on the duck eggs, some more draw down and I see protrusion and movement in the upper back of one of them.

Other coolerbator has chicks preparing to hatch this weekend!

 

[newtwinmom]

I do agree packing makes a difference. I only received one double boxed shipment. I've read the 101 post a dozen times and do all I'm supposed to for shipped eggs it seems to me-settle12 hr, don't turn for 24-48 hr, never candle anyway but up, I did stop the turner on day 16 for a couple of sets which didn't make any difference in numbers.

I wonder how detached and saddle shaped cells impacts judging age by cell size. I've had such a hard time judging draw down by cell size because the air cells are so jacked up. I've also wondered about the accuracy of weighing as a method of tracking loss in shipped eggs. Some of the university papers I've reviewed emphasize starting with fresh laid weight to calculate the 13% loss. Well, wouldn't shipped eggs have already lost weight? If I use the weight on arrival to me, I'll end up taking them down more from their fresh laid weight then recommended.

For what it's worth, I weighed my last set of home eggs and ended up with some loosing 20%. If shipped eggs loose before they get to me, then I'm letting them loose more then they should, that might explain the shrink wrapping I'm seeing on eggtopsy. Doesn't explain the day 18-19 deaths though does it?

 

[winteree]

Not much on the duck eggs, some more draw down and I see protrusion and movement in the upper back of one of them.

Other coolerbator has chicks preparing to hatch this weekend!

ok thanks for the info

 

[rbaker0345]

You beat me to this.

While it is possible to have an ambient humidity of 60% and an incubator humidity of 15%, most of us dont set our room temps to such levels.

The relative humidity will drop by a factor of 2 for each 20 °F or 10 °C increase in temperature.

Your room would have to be set at 60oF with an ambient humidity of 60% with the 40oF difference in the temp inside your incubator to that outside your bator to get a relative humidity in your incubator of 15%

Actually, you're somewhat close. I have severe asthma and the temp in my house is set at 68 at night and 72 during the day. I know that the humidity is reading correctly because I shut off the hatcher and the humidity shot right up to 50%.

 

[Sally Sunshine]

Stop broody w/ Acupuncture clinical study! OMG my DH would think I had gone and totally lost it!

Quote: New stuff to teach the new guy.... @ozexpat