no extended brood cells g.
i run 9 frames for a number of reasons, (fully drawn comb) in brood boxes; ventilation, relieve congestion, ease of manipulation of frames, less rolling of the bees, and for me, a northern keep, a smidge more eek space between frames for more bees to cluster in our extreme winter weather. i said in an earlier post about not having extra space, there may be a little extra space......
i think lazy said it best or being on the right track about bees:
"it has been my experience that bees keep the BEE SPACE the same, weather you run 8 frames or eleven.. given time they will return the spacing between the combs to what they consider Juuuuust right.."
they do. the bees know the difference between what is brood comb and what is honey and honey/pollen storage comb. the frames on the ends will be drawn out thicker than the brood comb frames, and to a certain degree takes up the extra space in a 9 frame deep; because they will draw these out much thicker, and also, you might find that the brood food, the semi circle, above the brood might be drawn out a little thicker. overall the brood combs remain the same, so there are no 'extended cells' in the brood frames. brood frame draw out is constant, or always the same depth , it is not the same depth/width as the honey frames. this can change with the season and the bees.
how does this change? what lazy said, and, you southern keeps have to remember that us northern keeps need our 2nd deeps heavy with honey. we don't have the option to open a hive and feed, or feed at all; unless our deeps are heavy, we leave an extra super on, candy board, feed on top the frames, etc.... the bees will convert the 2nd deep to winter stores. i think my bees winter better with 9 frames, rather than 10 frames. a little extra space to cluster more bees between frames, and thick, heavy honey frames to winter on. call me crazy but that is my method of madness.
i don't find any moldy frames come spring edward, it get's too cold here, and the frames that remain full on the outsides are good feed for spring bees.
hope i made sense?