My 9 month old Buckeye roo has been mating vigorously two of my hens. I checked some of the eggs and they had a faint bullseye. When incubated, they never developed. ( the other eggs by my other 9 month old Dorking, and my eggs from a breeder are doing well in the incubator). Is he infertile or too young? How often is it that you get an infertile roo?

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