Someone asked about why their embryos quit after lockdown.
I would make sure the ventilation was sufficient and what I believe Saris said, pay special attention to breeder nutrition.
Here's a rundown of all possible causes of deaths after day 18. You'll have to look at your process and see what may apply to your situation. The ones in black wouldn't apply since you have a problem with multiple breeds, breeders and hatches.
Incubator temperature, humidity, turning or ventilation is improper.
Hatcher temperature, humidity or ventilation is improper.
Contamination - especially from molds.
Fumigation too severe or too long.
Eggs chilled during transfer to hatcher or transferred too late.
Cracked shell.
Nutritional deficiencies. i.e. Vitamin A, vitamin D, vitamin E, vitamin K, vitamin B12, riboflavin, biotin, thiamin, folic acid, pantothenic acid, lineolic acid, selenium, calcium, phosphorus, manganese.
Embryo malpositioned
Embryo development accident (failure to switch to lung respiration)
Heredity (lethal genes, chromosome abnormalities)
Twinning
Hatcher opened too much during pipping and hatching.
Poor shell quality
Breeder diseases.
I would make sure the ventilation was sufficient and what I believe Saris said, pay special attention to breeder nutrition.
Here's a rundown of all possible causes of deaths after day 18. You'll have to look at your process and see what may apply to your situation. The ones in black wouldn't apply since you have a problem with multiple breeds, breeders and hatches.
Incubator temperature, humidity, turning or ventilation is improper.
Hatcher temperature, humidity or ventilation is improper.
Contamination - especially from molds.
Fumigation too severe or too long.
Eggs chilled during transfer to hatcher or transferred too late.
Cracked shell.
Nutritional deficiencies. i.e. Vitamin A, vitamin D, vitamin E, vitamin K, vitamin B12, riboflavin, biotin, thiamin, folic acid, pantothenic acid, lineolic acid, selenium, calcium, phosphorus, manganese.
Embryo malpositioned
Embryo development accident (failure to switch to lung respiration)
Heredity (lethal genes, chromosome abnormalities)
Twinning
Hatcher opened too much during pipping and hatching.
Poor shell quality
Breeder diseases.
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