TattooedChicks
Songster
If he is breeding your hens and fertilizing the eggs, you should be able to see a white dot and a white ring around it somewhere on the egg yolk. If you break a dozen eggs and only have a few bullseyes, you can discern that he is either not covering or not very fertile. If you see lots of them, know you he's not shooting a bunch of blanks. That way you know he is in fact doing his job and can investigate your hatch rates further down in the process.What do u mean by check his fertility??