From my experience, Muscovy ducks have fewer pinfeathers but I'm sure this is because I've always slaughtered them at an older age than other breeds. I have also found that every time that I think I have figured out the perfect time to slaughter to avoid pinfeathers, I am proven wrong. I have raised Pekin, Cayuga and Muscovy ducks and I prefer the Muscovy. They cayugas are fine for personal consumption but almost impossible to sell due to the difficulty of removing every single trace of black feathers. For some reason, the black and brown Muscovy ducks seems to clean up better than the Cayugas. I think the Muscovy taste better and they are more self sufficient. The drakes also get huge, yielding 2 boneless breast portions of almost a pound each. While I sell both Pekins and Muscovy for the same price, I think that I could probably charge more for the Muscovy since there doesn't seem to be any for sale near here without ordering online. The people who have bought both from me usually come back and buy the Muscovy but will settle for a Pekin if that's all that I have at the time.
If you plan to keep them for 2 more weeks, keep in mind that now that they are pretty much grown, they will be eating quite a bit of food which will either cut into your profit or require you to up your prices.
I can sell whole chickens for around $3.50 a pound and whole ducks will only fetch about $5.00 a pound. When people pay $5.00 a pound for a duck, roast it and only get 1/2 the meat that they would have gotten from a comparably sized chicken, they feel like the've been gypped. (I don't mean to offend any Gypsies) If I part the ducks out, I can get $15 a pound for skin-on boneless breast, $8 a pound for bone-in leg quarters and $10 a pound for boneless leg/thigh meat. A carcass with neck and giblets without skin is $2.00 and a 1 cup mason jar of rendered fat is $6. I also sell 1 pint mason jars of rendered fat with 6 leg quarters for $40 for duck confit. Now I don't exactly have people knocking my doors down to buy the ducks but the people who do buy them keep coming back. I've found that most Americans have a belief that a duck should be cooked like a chicken and when they try roasting one, they end up with a greasy mess and tell everyone how greasy duck is which doesn't help my sales. By selling the parts and providing cooking advice for each part, my customers have had great success and they feel like they are making gourmet food that wows their friends and family. This is what keeps them coming back and paying what seems to some like a high price for duck. I also try to beat it into their heads that duck is more like filet mignon than it is like chicken and those who have tried my pan-seared duck breast seem to agree. Filet mignon in the store is about $18.00 a pound and boneless chicken breast in the store is about $1.99 a pound on sale. Lastly, I let them know that duck breast is best when cooked to medium rare or less and ask how they prefer their steak. If they like their steak well done, I recommend they buy a chicken because a duck breast cooked that much will be a waste of their money.
kuntrygirl, There are a lot of variables there. I feel that about 15 minutes is what it takes us (2 people) to catch, slaughter, eviscerate, pluck in a drum plucker and hand pluck the vast majority of the remaining feathers. Once they are inside, it probably takes another 15 minutes to cut up, detail pluck and wrap each bird so they look presentable for sale. (This doesn't include the time to render the fat down) Without an automated plucker, I feel that it's closer to an hour per bird total.