I was thinking about getting Jumbo Pekins this spring to butcher because they supposedly grow larger. I never see anyone that has them though and I wondered why. I was looking on Metzer and they sell them. Acoording to their website it says they can be 10 - 13 pounds. Originally I thought this was somewhere around 8 - 10 weeks of age. But if you look in their print catalog, or jus tthe pdf on their website, it says "at 18 weeks" Is it even worth keeping a meat duck around that long just for those couple extra pounds? I've never butchered a duck but from what I understand regular Pekins can be anywhere from 8 to 10 pounds at 8 weeks. Is that really what people have seen?