Do hens need a rooster to lay eggs?
How does the sperm get through the egg shell?
How old does a rooster have to be before he's fertile?
How do chickens mate?
How soon are the eggs fertile?
How many roosters do I need?
Is my rooster too old?
How can I ensure fertility?
How long will the eggs be fertile after the rooster leaves?

This video answers your questions about the role of roosters in producing the next generation of baby chicks.

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