my new incubator

Date sort Score sort
Isn't it put eggs in and turn twice a day. on day 18 stop turning. And day 21 they will crack egg stay like that for a few days and couple of days later they hatch out. do i have it right.????????
 
Chicken eggs take 21 days so if you set on the 25 they should hatch around the 15th as thats three weeks from the 25 of dec. You should stop turning them around the 13th I think but the 12 would be ok too as some times banties hatch earler and I think silkies are considered banty.You turn 3 times a day so they never rest on the same side every night untill the 18th day then you add more water to raise humidity and they should hatch about the 15th they could be a day or two early or a day or to late but thats an avrage. Im sorry if all the comments are confuseing you. Some people count the day you set as day one and some count the next day as day one it shoudnt hurt ether way I dont think. Hopefully someone will chime in if I got any info wrong.
 
Last edited:
yeah im new to all this incubating. i put mine in on Friday so im due to hatch the 25th. thanks for your help. sorry to the person who's thread this is im getting help. thanks tho i need all the info i can get as im new.
 
gabrielle1976 said:
Chicken eggs take 21 days so if you set on the 25 they should hatch around the 15th as thats three weeks from the 25 of dec. You should stop turning them around the 13th I think but the 12 would be ok too as some times banties hatch earler and I think silkies are considered banty.You turn 3 times a day so they never rest on the same side every night untill the 18th day then you add more water to raise humidity and they should hatch about the 15th they could be a day or two early or a day or to late but thats an avrage. Im sorry if all the comments are confuseing you. Some people count the day you set as day one and some count the next day as day one it shoudnt hurt ether way I dont think. Hopefully someone will chime in if I got any info wrong.
Click to expand...
Yup good advice! What are you guys running temps and humidity and what kinda bators and eggs did ya set?
 
3 times a day try turning them....

Have a look at https://www.backyardchickens.com/a/hatching-eggs-101 I throw alot of good info links pics and videos there....

it also has a section about the relevance of turning... here is that paste



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 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.


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).
 

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