what does l1 mean in reference to cavapoos?

"L1" can be used in genetics to refer to the first filial generation (F1) of a crossbreed between two purebred dogs. In this context, an "L1" Cavapoo would be a first-generation cross between a purebred Cavalier King Charles Spaniel and a purebred Poodle.

It's worth noting that in breeding, the term "F1" or "L1" is used to describe the first generation of a specific crossbreed, but subsequent generations may have different letters or numbers associated with them. For example, an "F2" or "L2" Cavapoo would be the second generation of a crossbreed between two first-generation Cavapoos. The exact terminology may vary depending on the breeding program or organization using the terms.