Ditto -- Happy Bee's response.
Here in the US where we have so many deer, 1st year hounds tend to want to go off on more interesting scents. Cubbing takes place prior to the hunt season and gets them focused on foxes.
not really cubs by now if you thik they were born in th spring and are hutned in autum. Anyways, cubbing is bascailly using a pack mainly made up of young hounds to draw a covert for fox 'cubs'. the covert would normaly have people linging it so as to keep evrything inside the covert, as young hounds arent really to great a chasign a fox thats gon away, hence why they practise like this....bt of coruse all this is irrelevant as most of us now 'trail hunt'...yeah