There are other breeds that come in Pastel- Runners and Mallards are two that come immediately to mind as I have both in Pastel. I just checked Holderread's duck book to verify if he says anything else comes in Pastel and he says that there are also Rouens and Crested in Pastel. Really, it is a pretty easy color to get as it is just wild type with homozygous blue dilution. Apricot is a term more used in Europe. The term "Apricot" in the US is only used in a few colors, like Apricot Silver (a completely different color than Pastel obviously). Anyway, another reason why Pastel might be less common in other breeds is because in some of those breeds, Runners for example, a LOT of birds carry recessive genes, especially light phase and harlequin phase. It is extremely easy to breed Blue Fawn. When you breed the Blue Fawns together though, in theory you should get 25% Pastel if no other genes are involved. In actuality though, you will have other colors pop up in the F2 generation, including Saxony, Apricot Silver, and others, some of which are difficult to even discern.
Lavender is a completely different color in ducks. It is extended black, sex-linked brown dilution, and homozygous blue. It is an *impossible* to color to get. LOL, actually, genetically it is pretty easy to get, but you basically end up with a white duck. There is no lavender gene per se in the Mallard derived breeds.
