dying in last incubation week

morheb

Chirping
Aug 30, 2016
76
12
56
HHelloiade an incubator and it works fine, however, many chicks dies in the last week of incubation while otgers survive.
I hatched about 100 chicks already from it, but still have decent nunbers of babies dying in the last few days before hatching


Any idea what is the reason and what can i do about it?
 

PD-Riverman

Crowing
8 Years
Jan 14, 2012
5,007
1,302
406
Conway SC
Temperature, Humidity, venting, bacteria, turning, egg age/storage before setting to name a few that could cause this problem. Can you give more info on these listed----from set to hatch so we can see if we see a problem.
 

morheb

Chirping
Aug 30, 2016
76
12
56
Temperature, Humidity, venting, bacteria, turning, egg age/storage before setting to name a few that could cause this problem. Can you give more info on these listed----from set to hatch so we can see if we see a problem.
Temperature between 37.4 and 37.7
I turn all the eggs together twice daily
I add new eggs every day
 

PD-Riverman

Crowing
8 Years
Jan 14, 2012
5,007
1,302
406
Conway SC
I add new eggs every day

What? Add eggs daily?? How do you keep a lower humidity for the first 18 days of incubation and a higher humidity for the last 3 days???(This is important for a good hatch) No way to do that. We figured out your problem. Sure you can save gathered eggs for a week and set once a week, then when the eggs from the beginning get to day 18---you could raise the humidity for 3 days, then drop it back after that batch hatches---but it would be best to get a second incubator---no turner and set it up with a higher humidity----move the 18 day old eggs into it for the hatch----then clean it up and have it ready for the next batch that you set a week later.
 

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