What does F1 , F1b, F2 Mean ?
When a Cocker Spaniel is mated to a poodle to produce a cockapoo this is known as a first generation cross and is referred to as an F1 .Sometimes a Cockapoo is mated back to one of the parent breeds either the spaniel or poodle and this produces an F1b.
The "b" denotes back-bred.
When two Cockapoos are mated together they produce the next generation known as F2s. It is possible that a small number of the litter may have what is called the 'Grandad effect'. This is where a puppy will resemble one of the grandparents, either the poodle or the Cocker Spaniel and is usually referred to as a throwback. This is why we don't breed F2.