Incubating Eggs day 7 again!

Pair of Wyandottes creating a heart shape!

Well I have been away for a few days in London and that meant leaving the incubator running without any monitoring for 3 days.  I did realise this would happen when I set the eggs back on 7th February, I knew it was a bit of a risk, but I was impatient probably due to the failure of the last batch.





Today, Valentines day, is the 7th day so I have been candling the eggs to check for development.  The great news is that at present 11 out of the 12 eggs I set appear to be fertile.  The one egg that appears not to be developing is unfortunately the Cream Legbar which is a shame however it does mean that there is potential for Croad Langsham, Owl Beard, Salmon Faverolle and Silver Lace Wyandottes hatching out in around 14 days.

What did I do differently to my first batch?
Well I'm not going to take all the blame or credit here as I have had loads of useful advice from Andrew from Slate House Farm and from Norfolk Bantams on Twitter, in fact, without their help I may have delayed my next hatch for some time.  There is also the consideration that maybe the eggs were not quite ready as it was so early in the year.

I think I took the instructions with the incubator quite literally with regards humidity.  It stated that one water trough should be filled and two should be filled at day 18. The instructions did not mention anything about ventilation either and I don't recall reading about this, but it is crucial when controlling the the humidity. Ultimately I think I drowned the chicks or prevented them from developing properly which is very sad and a mistake I will never make again.

Secondly, I did not monitor humidity, I had no way of knowing what the relative humidity percentage was at any time.  But again looking back I think levels were far too high.  The condensation on the roof of the incubator was a big sign that I totally missed.

To correct both of these major mistakes I have bought myself a reptile humidity gauge for £5.99.  Why these are not fitted or provided when you buy a Corti incubator I have no idea, but it is an essential piece of kit in my opinion.  I have also worked out how to open the vent holes in my incubator.

You do learn by your mistakes, and it has been a big mistake and quite a large learning curve.  It is almost addictive, learning and putting into practice what you have learnt.

Before setting my current batch of eggs, I ran the incubator for 2 days monitoring humidity.  I ran it initially with no water.  Humidity was as low as 10%, so there was no chance of adding the eggs without water.

Once one water trough was filled the humidity increased, first to 30%, then a few hours later 40% and the next morning it was stable at 50%.

The incubator has continued to remain at 50% with a full water trough and vents fully open.  11 of the 12 eggs are developing so its good news for now.


I will be monitoring carefully and will post more updated soon.


Thanks for reading.