I referred several days ago to a research article, saying that I would try to locate it. Unfortunately, I haven't been able to (if you saw the state of my files, you could well understand...) Perhaps some details will remind someone else on the list, or perhaps give enough details for someone with good search capabilities to find it. It was in an Australian bee journal, probably in the 10-15 years ago era. It may have been by Graham Kleinschmidt, or may have been Keith Doull. It involved testing of the protein contents of a number of Australian pollen sources, and then, I think, a test of the protein levels of the bees before and after a period of time working the source. I *think* conclusions included the identification of a 'low quality' pollen which, even though collected in quantity, did not increase the bee's protein levels much. From this followed the suggestion that bees needed to be moved to *good* protein/pollen source in the time prior to honey flow. Does that ring a bell with anyone? (\ Nick Wallingford {|||8- home [log in to unmask] (/ work [log in to unmask] NZ Beekeeping http://www.wave.co.nz/pages/nickw/nzbkpg.htm