Cyclops Chick (GRAPHIC!)

VDes

Chirping
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(Warning: sensitive images below!!)

Had a rather bizarre fellow develop in my clutch here this last hatch.

I’d bought a dozen wyandotte eggs and a dozen silkie eggs. All wyandotte eggs developed and hatched perfectly. Only five silkie eggs developed. Two hatched without issues and two needed minimal aid after they failed to fully zip. Both the ones who needed help have issues with their feet that I’m going to try to correct through taping.

Then that just left the last silkie egg. No internal or external pip was seen but there was movement when candling. After waiting another 24 hours I decided to open it up. Despite being on day 24 there was a lot of room still within the egg and an alarming amount of fluid and yolk left. The chick, however, was responsive to stimuli. I decided to go ahead and pull the egg after noticing the abnormality that presented in the chick. Upon removing it was clear the chick was a cyclops. It had a single presenting eye, no upper beak, and no orifices to breathe. Otherwise the body below the neck seemed to have developed properly, despite being on the smaller size. Interestingly, there were no blood vessels embedded in the membrane itself and so there was no blood loss until the chick was pulled from the egg and a vessel connected to the yolk ruptured. The chick remained responsive to stimuli outside the egg for about five minutes before passing on.

I’ve hatched a few deformities before but this certainly takes the cake for most interesting. So I thought I'd share the experience.

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Most fetal mutations are just random errors during the production of the sex gametes (egg and sperm), on ultrasound water belly, two heads, etc is visible at 40 days gestation in cattle, they just develop that way due to a ‘grammatical’ error in the fertilized egg cell. Sad but very cool! If you have a random mutation it I just that, but your silkie eggs may have genetic issues with low fertility and hatch rates and only 2 normal chicks out of five (unless they were shipped, scrambled eggs can have similar issues). I wouldn’t breed your silkie chicks from this hatch to one another, a little outcrossing is in order!
 

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