Hatch problems

[Carrie k]

I purchased 3 dozen eggs from the same person. Put the eggs in my automatic turning incubator, monitored humidity. The temp was set at 99 to 100 and stayed right there. One egg hatched on day 20 another on day 21. The second piped zipped and hatched in an hour, then died two hours later. The first had black spots inside the egg on the lining but seems fine. One other egg day 21 has piped 10 hours ago, nothing since. The hole is not big enough to see into. The other 30+ nothing. I never candled because past hatches haven't gone well because I intervened too much. Anyone have advice on any of these things

 

[feedman77]

What humidity did you incubate at?

What humidity are you hatching at?

What type of incubator?

I would candle at day 7 and 14. Any clears at day 14 get tossed.

Maybe the eggs are infertile without knowing the feed the parent birds were getting may be a nutritional deficiencies?

A lot of things can come into play not just the incubator.

 

[Carrie k]

Humidity for incubation was 45 to 55 hatch was 70. Incubator is farm innovators pro series model 4250. No idea about parent, like you say. I tried to hatch my own eggs last year. My humidity was too high I think and not enough ventilation. My goodness this is harder than I thought.

 

[Lazy Farmer]

crack your egg here..
https://www.backyardchickens.com/th...-sunshine-hosts-bantychooks-and-more.1137467/
Lots of honest ears

 

[ronott1]

Were the eggs from the other hatch from the same person?
The black spots in the egg is bothersome.
Since you had three develop(after the hatch has been called as over, crack open each egg to see what is inside), The others were likely not fertilized. That can be a rooster issue.
You cannot control flock health or conditions. I would suspect some type of bacteria caused the spots which could have been from micro cracks in the egg.

Try getting eggs from someone else and local.
Candle on day 7 and 10 to check for clears and air cell development.
Calibrate the thermometer and hygrometer
Temperature issues is the most common cause of hatch problems. Make sure that you are using a good one.

One that reads in tenths and is accurate at: + - 1 degree f too

 

[feedman77]

Consider what hatched in day 20 and 21 temp was good.

Humidity if accurate should have been fine. What worked for me after trial and error on humidity was 20 to 35 percent during incubation. Raise to 70 plus for hatch.

I keep plugs out of my incubators for good ventilation the entire time.

Incubation is a lot of trial and errors. If you have a good hatch try and repeat the same scenario. If you have a bad hatch make a small adjustment and try again.

Humidity is the biggest variable.

 

[HeyHey]

Were the eggs from the other hatch from the same person?
The black spots in the egg is bothersome.
Since you had three develop(after the hatch has been called as over, crack open each egg to see what is inside), The others were likely not fertilized. That can be a rooster issue.
You cannot control flock health or conditions. I would suspect some type of bacteria caused the spots which could have been from micro cracks in the egg.

Try getting eggs from someone else and local.
Candle on day 7 and 10 to check for clears and air cell development.
Calibrate the thermometer and hygrometer
Temperature issues is the most common cause of hatch problems. Make sure that you are using a good one.

One that reads in tenths and is accurate at: + - 1 degree f too

what do clears look like when you candle?

 

[feedman77]

They will glow like a lava lamp. Will see no veins.

 

[ronott1]

what do clears look like when you candle?

This shows what developmet should look like by day. If an egg looks like a day one level of development, on day 7 it is a clear and usually not fertile

 

[ronott1]

They will glow like a lava lamp. Will see no veins.