When are they fully grown?

[PetesMom]

We just got 6 new babies at TSC today. They are Rouens. My question is when are they full grown? Some things I'm reading are 4-6 weeks, 5-8 weeks.....and even 1 1/2 years.

Pekins too, I know they mature rather rapidly but when are they actually full grown?

How much do the Rouens weigh when they are full grown? I read 5-6lbs then I saw 11-12lbs ??? lol

 

[Kevin565]

In size mine are usually done by 8 weeks. For sexually mature usually 6 months for my birds

 

[Amiga]

Goodness, that's a range of information, isn't it?

I can tell you that my Runners were close to full size at about three months. Storey's Guide if I recall correctly, writes that they are grown up by about seven months.

I noticed behavioral changes over the next year and a half, also. It was almost 18 months before anyone really seemed to throw their weight around. It was quite mild, by the way. Oh, and they slowly put on a little more weight, from about 3.5 pounds to a little over four pounds, for example. They seem more mellow this spring, being in the Day Pen without me than they were the previous two springs.

 

[Oregon Blues]

8-10 weeks, they are big enough to butcher, but they are still maturing and filling out for nearly a year.

 

[MamaDuck1]

Woo wee! That is a wide range. Probablt depends on what you are raising for... And what fillers, lighting,etc.