The Complete Encyclopedia of Chickens by Verhoef and Rijs has a breed description for Breda (and Bantam Breda). It says they weigh around 3kg (6 1/2 lbs), are calm, hardly ever go broody, are excellent layers, lay in the winter and the eggs are white. It also says " Although this is originally a table breed, it is a slow developer, not growing as fast as other meat producers.". Traditionally they were caponized when used for meat production. There are also some nice pictures. It is a nice book if you want to know more about the Dutch breeds. Lots of eye candy.