1. If this is your first time on BYC, we suggest you start with one of these three options:
    Raising Chickens Chicken Coops Join BYC
    If you're already a member of our community, click here to login & click here to learn what's new!

Humidity for shipped eggs....HELP!

Discussion in 'Incubating & Hatching Eggs' started by pinky67, Jan 29, 2013.

  1. pinky67

    pinky67 Chillin' With My Peeps

    168
    0
    81
    Jul 28, 2012
    Crescent City, CA
    Hi all! HELP! Need some advice! Incubating shipped silkie eggs...day 11. Nice veining and movement in all. Almost all have large saddle or partial saddle air cells. I have kept them upright and only started turning at day 7. I think the humidity was high the first week 60-65 (didn't have a hygrometer just followed Brinseas directions) Have a hygro now and have been running about 40 for the past few days. My question is should I increase or decrease the humidity because of the already large air cells? Or will it make no difference? Thanks so much for any input!!!
     
  2. sumi

    sumi Égalité Staff Member

    35,974
    7,426
    646
    Jun 28, 2011
    Rep of Ireland
    1 person likes this.
  3. ozexpat

    ozexpat CocoBeach Farm


    There is a massive thread on shipped eggs and their issues https://www.backyardchickens.com/t/704328/diary-notes-air-cell-detatched-shipped-eggs

    My advice is to pose questions there. The experts lurk there and are more likely to see your questions. Good luck
     
    1 person likes this.
  4. Sally Sunshine

    Sally Sunshine Cattywampus Angel <straightens Halo> Premium Member

    55,485
    4,838
    596
    Aug 23, 2012
    Pennsylvania
    My Coop
    Saddle shaped air cells are very common with shipped eggs and do appear larger in most cases.... they can hatch fine but you will want to mark that air cell with a pencil line and keep a close eye on it during lockdown....https://www.backyardchickens.com/a/hatching-eggs-101 this is a paste from the article and also refer to these page if necessary Guide to ASSISTED Hatching ~ Mushy Chick Disease

    PIPPED the WRONG END



    The normal hatching position is where the spine of the embryo runs parallel to the long axis of the egg and the beak is positioned underneath the right wing. The tip of the beak is directed towards the air cell in the blunt pole of the egg. When the beak is under the right wing, the wing holds the shell membrane away from the face of the embryo and thus gives the beak more freedom of movement. In addition, the wing helps stretch the inner shell membrane and helps the piercing of this membrane by the beak. In this way, the embryo gains access to the air cell of the egg and begins to ventilate its lungs.
    Common reasons for increased incidences of Malpositions are:
    Eggs are set with small end up. As part of a monitoring program, check eggs in the egg room or in the setters to ensure that eggs have been set correctly.
    Advancing breeder hen age and shell quality problems.
    Egg turning frequency and angle are not adequate. Proper frequency of turning through a 45 degree angle assists the embryo to position for hatch. The standard turning rate in the setter is 1 per hour.
    Inadequate percent humidity loss of eggs in the setter. Acceptable weight loss of eggs from setting to transfer is 11-14%.
    Inadequate air cell development, improper temperature and humidity regulation, and insufficient ventilation in the incubator or hatcher.
    Imbalanced feeds, elevated levels of mycotoxins, and vitamin and mineral deficiencies.
    Exposure to lower than recommended temperatures in the last stage of incubation.


    Normal hatching position and the six recognised malpositions:
    http://www.thepoultrysite.com/artic...-hatchery-practice-examining-the-hatch-debris
    [​IMG]


    SHIPPED EGGS and SADDLE SHAPED AIR CELLS ~


    (when one or both sides have a large "dip" in the air cell.)



    [​IMG][​IMG]

    Look at this position..... I alot of times with saddle shaped cells the chick doesnt position correct for hatching and alot of times the feet are in a bad place like stuck behind the head and actually smoosh the chick so they cant move, it can also force the yolk sack and everthing more north in the shell....

    Look at the pics and note the top of the egg and how far down this air cell goes, alot of times they CAN do the internal pip but cannot hit that outer membrane/shell. This is why I mark the air cells and keep a close watch on them at hatch and if they seem "later" that the rest by about 6-12 hrs I will begin an assist by candle and tapping to make sure I have that internal pip, HOWEVER in this case you cant see the internal pip too well because of the angle, so I always tap to see if I hear them. and if I do hear a chirp then I follow the Assist steps... If not I check again in another 6 hours....and repeat...



    When to assist?
    Assisting a chick should be your LAST RESORT
    PLEASE READ the following ARTICLE
    BEFORE you try to assist a chick!


    Step By Step Guide
    to Assisted Hatching:

    https://www.backyardchickens.com/a/step-by-step-guide-to-assisted-hatching
     
    1 person likes this.
  5. pinky67

    pinky67 Chillin' With My Peeps

    168
    0
    81
    Jul 28, 2012
    Crescent City, CA
  6. pinky67

    pinky67 Chillin' With My Peeps

    168
    0
    81
    Jul 28, 2012
    Crescent City, CA
    Thank you. I'll check it out!
     
  7. pinky67

    pinky67 Chillin' With My Peeps

    168
    0
    81
    Jul 28, 2012
    Crescent City, CA
    Thank you! I have read and reread all the info on the "Shipping Hatched Eggs/detached air cells" etc. So basically there are no changes to be made in humidity that will help the already large saddle air cells.....I just don't want them to get bigger! So I guess I will just increase the humidity a bit (50?) and hope for the best.[​IMG] They are marked and I will be keeping a close eye on them at hatch time.
     
  8. Sally Sunshine

    Sally Sunshine Cattywampus Angel <straightens Halo> Premium Member

    55,485
    4,838
    596
    Aug 23, 2012
    Pennsylvania
    My Coop
    I think thats a good plan!
     
  9. Thespoiledchicken

    Thespoiledchicken Chillin' With My Peeps

    1,553
    150
    188
    Sep 12, 2011
    Long Island
    I have a sneaking suspicion that your air cells are just abnormal looking, not overly large. Shipped eggs frequently have wonky air cells but are still usually hatchable under the right conditions. I am a little concerned though that you did not have your eggs turning for the first 6 days, that could cause a problem. In the future it's best to leave the eggs sit upright (fat end up) for 24 hours and then set them (upright) in turners. You can then leave them incubating in the autoturners like normal. If you were doing them by hand (not autoturners) you could set them upright in an eggcarton and then put something under the side of the carton to "turn" them (so your eggs are tilted to one side). Do this a few times a day alternating sides.

    60-65 % humidity is high so I'm glad you got it lowered. I would not go over 40 unless you truly are having huge air cells (not just misshapen). If it were me I would be dry hatching somewhere in the 25-30% humidity range and then increasing to 65% at lockdown [​IMG]

    Good luck with your hatch! Silkies are ADORABLE!!!!


    Trish
     
  10. pinky67

    pinky67 Chillin' With My Peeps

    168
    0
    81
    Jul 28, 2012
    Crescent City, CA
    Thanks for the info. [​IMG]I have done a ton of research here on BYC. Lots of great threads.
     

BackYard Chickens is proudly sponsored by