You can tell your husband that a fertilized egg is not like a fertilized egg of a mammal, which begins to develop immediately. In chickens, and other birds they lay a clutch of eggs, however they can only lay one egg at a time. Sometimes a hen will find a secret spot, create a nest, and lay an egg there. Then go about her business, she goes back and lays another egg, and so on, until the number of eggs in the clutch suits her. At that time she stops laying, and begins to brood the clutch.
All the eggs will start to develop when they have been warmed to about 100 degrees F for more than 24 hours. This allows the eggs to hatch at the same time.
Eggs collected each day, are in a state of suspension, they are not developing. Maybe this will help your husband. Most people cannot tell if an egg has been fertilized or not without training.
If you still do not want fertilized eggs, then you really need to remove him from your flock. I would not like to keep a single rooster by himself away from his ladies, I don't think the rooster will like it either.
Mrs k
