Do I have bad hens or rooster

eXistenZ

Hatching
6 Years
Jun 26, 2013
7
0
7
10 days ago I put 54 eggs in the incubator.
The eggs had been storaged at about 10 degrees C, and turned (mostly) one time each day.
The eggs were collected in 14-18 days.

11 eggs didnt develop at all.
Now, after 10 days I have just removed 15 eggs, which were all dead, rest look fine.

This is kinda shocking to me.
I started incubating last year, and I had a much higher survival rate at 80%.

This year however I replaced my entire flock - except the rooster - with the chicks I incubated last year.
Is 1 instance of 'inbreeding' enough to cause a 50% fail rate at day 10?
The temperature seems steady at between 37.5 - 38.5 depending on location in the incubator.

edit:
The fox ate my adult flock from last year, hence the replacement.
 
Last edited:
No, that is not enough inbreeding to make any difference.

Supposedly chicken eggs loose their viability after 10 days. It would be interesting to know if all of the ones you removed were the older ones.
 

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