Quail egg hatching percentages
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I think the 60% is either for shipped eggs or for when something hasn't been done quite right, like humidity, temperature, turning, storage before incubation and such. Or possibly when the parents are a little too closely related. When people incubate their own, fresh eggs from unrelated birds, in fully automatic incubators and nothing goes wrong, the hatch rate should be closer to 80% than to 60%.
We just hatched our first batch, and among those who were actually fertilized we had a 78.6% hatch rate. We had quite a few unfertilized ones because we have one male and 8 female, which is way too many for the boy ;)
The only pecking problem we have had is our male, who is now separated and on the freezer camp list. He's a violent breeder and we had not heard of that until we had the problem with him. Otherwise they are incredibly gentle and do not fight at all.