When a male chicken has not yet molted and is over 5 months old. what is he called?

The answer is cockerel. This the name of the young domesticated male chicken, sometimes it is also called young rooster. But this cockerels are only usual less than a year old than the usual. Male chickens have been castrated at four to eight months and it weighs 5-9 pounds. This kind of chicken produce more white meat and higher fat content. 

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