Does eating camel meat nullify ablution, and what are the types of camels whose meat, if eaten, would nullify ablution?

Eating camel meat nullifies ablution (Wudu'), whether it is raw or cooked, based on the Prophet's (peace be upon him) saying: "Perform ablution after eating camel meat." The default understanding of a command is that it denotes obligation, and there is nothing to divert it from this meaning. There is no distinction between Arabian camels and other types, nor between young or old camels.