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

[picanins]

SOOOO my little Purple Rain eggster is alive! There is a tiny embryo in there but its a LOT smaller and less developed than the other eggs I set at the same time...I don't really have a lot of home for the long run but pretty neat that it's at least hanging in there.

Also it appears that the air cells have reattached on some of by BLRW eggs, of the 14 I started with, I have three that are alive on day 7. At least that is something!

Wooooohooooo!!!!!! Good, good news!!!

 

[picanins]

Ok, here is the problem tho...I will be at the office all day tomorrow and Friday...so I can either turn them once in the morning and once at night, or turn on the automatic turner...

If you're on day 7 I would def start the auto turner. It's very gentle. Just my thoughts, though, no pearls of wisdom

 

[Overoberyl]

Ladies & gentlemen, I present to you.....Purple Rain!!!

 

[sumi]

Lovely!

 

[coffeekittie]

Ok, here is the problem tho...I will be at the office all day tomorrow and Friday...so I can either turn them once in the morning and once at night, or turn on the automatic turner...

From what I've read from long-time hatchers, don't use the automatic turner on shipped eggs (if they have "problem" air sacs), or even worry too much about really turning them at all. I prop up a different corner of the entire incubator each day, and my shipped eggs are doing great! So far.....

 

[picanins]

Ladies & gentlemen, I present to you.....Purple Rain!!! 

Oh my word, that is completely breathtaking!!!!!! In the pic it looks like the shadow of a cross watching over him/her!!!! Oh my WORD. - love that pic, so cheering to see Purple Rain make it right thru to hatch day!!!

 

[Sally Sunshine]

It's one of those where they sit upright and the turner just rotates, I honestly don't think they go more than 45 degrees from vertical so I wonder if it might be alright...arghghg no way to know! I might start them turning and then check their progress tomorrow.

I agree if they dont really go much from verticle, it sounds like my little flop like in those pics I just posted actually! So I would turn. I should have saved the links and posted on here when I was reading about turning and why also about a hens actions in the hatch process... if I find them I will share, I will have to go back through temps and see if I see anything. I love purple rain!!! Go Purple Rain go!!!!

 

[Sally Sunshine]

http://dev.biologists.org/content/5/3/293.full.pdf A Critical Period for the Turning of Hens' Eggs

SUMMARY
1. Turning hens' eggs between the 4th and 7th day of incubation gives a
hatchability similar to that of eggs turned throughout incubation.
2. Turning the eggs between the 8th and 1 lth day gives a hatchability similar
to that of unturned eggs.
3. New evidence is presented that absence of turning leads to abnormal
adhesion between the chorion and shell membranes.​

4. The mechanism by which turning effects development is discussed.
ALSO the FOLLOWING SITE:

http://ps.fass.org/content/85/8/1433.full interesting article .... this is just the beginning

Effect of Egg Turning Angle and Frequency During Incubation on Hatchability and Incidence of Unhatched Broiler Embryos with Head in the Small End of the Egg1

1. O. Elibol* and J. Brake†,2 Abstract

The effect of turning angle (from vertical) and the interaction with turning frequency during incubation on fertile hatchability, embryonic mortality, and the incidence of embryos with head in the small end of the egg (malpositioned) was studied in 2 experiments comprising 2 trials each to determine if a turning angle of less than 45° could be successful. Hatching eggs from commercial broiler breeder flocks from 55 to 61 wk of age were utilized, and turning was for 18 d. Eggs were subjected to turning angles of 35, 40, or 45°, with a turning frequency of 24 times daily (24×) in Experiment 1. Turning angle had no effect on fertile hatchability. However, the incidence of separately enumerated, malpositioned embryos was increased by the 35° angle, compared with both the 40 and 45° angles in Experiment 1. Eggs were subjected to turning angles (from vertical) of 35°, with a turning frequency of either 24× or 96× daily, or 45°, with 24× turning in the 2 trials of Experiment 2. Turning angle and frequency had no effect on fertile hatchability or embryonic mortality, but the incidence of separately enumerated, malpositioned embryos was increased by the 35° angle with 24× turning, compared with the 35° angle with 96× turning, and the 45° angle, with 24× turning, in Experiment 2. These data demonstrated that the incidence of malpositioned embryos was increased by a reduced turning angle, but that this effect was ameliorated by a concomitant increase in turning frequency.

 

[Sally Sunshine]

Relevance of turning Written by Gerd de Lange see page for full info.....I FOUND the one that I actually understood here:

http://www.pasreform.com/academy/frequently-asked-questions/incubation/26-relevance-of-turning.html



Broody hens provide optimum conditions for embryos developing in the eggs they are sitting on. The brood patch provides heat from one direction only, and the eggs at the side of the patch are cooler than those in the middle of the nest. However, because the broody hen regularly turns and moves the eggs in the nest, uniform egg temperature is achieved.
In commercial incubation, we try to mimic the natural conditions in the nest. From the point of view of uniform egg temperature turning of eggs seems to be of less importance in modern incubators. Are there other reasons for turning eggs?
As summarized by Deeming (2002), egg turning is essential to normal development for several reasons.
Egg turning

• Prevents adhesion of the embryo to the inner shell membrane.
• stimulates the rate of development of the area vasculosa (the membrane which grows around the yolk and is rich in blood vessels). The area vasculosa is important for sub-embryonic fluid formation, as well as for yolk uptake later in incubation.
• allows normal transfer of albumen proteins into the amniotic fluid, promoting optimum use of the albumen.
• supports the growth of the chorio-allantois (the blood vessels right under the shell) to maximise oxygen absorption.
• embryos in unturned eggs grow at a lower rate compared to embryos in eggs turned each hour over 90˚.
• facilitates movements of the embryo into the normal hatching position and reduces the incidence of malpositions in unhatched embryos.

Advice

• Check the turning device before the start of each incubation cycle, as turning failures, depending on the moment of occurence, are detrimental to results.
• Check and maintain the turning device regularly, to prevent a breakdown during incubation.
• Make sure that turning does not produce shocks or jolts, as this adversely affects hatchability and chick quality.
• If necessary, check and adjust the turning angle: 45˚ is optimal.
• Not turning for the first 12 hours in the setter is advised, based on our practical experience and especially when eggs are transported to the hatchery on the same day as setting. Eggs need some rest time to restore their ‘internal balance’.
• Turning is not absolutely necessary after 15 days of incubation. Especially in incubators with insufficient cooling capacity, it can be beneficial to leave the eggs in a horizontal position to facilitate increased air flow (cooling over the eggs). In some modern setters, there is also the option of turning to three different positions, e.g. 45 minutes each in right, horizontal and left position).

 

[chicksooner]

Good info...staying tuned for your hatch.