In the Aug 2010 issue of ABJ, Zachary Huang discusses bee nutrition. He points out that about 40% of the sugars in soybeans are toxic to bees. He goes on to say that Brood Builder® and Bee Pro® are soy based. He doesn’t specifically state that they aren’t OK but doesn’t include them in any of his analysis. Take it for what it’s worth.
I suscribe to the theory that in life you get what you pay for and pay for what you get. But I am still one of the worst bargain hunters. In this case I will wait until others have tried this feed and approve of it.
Remember Dadant developed and sells duragilt. Nuff said.
Duragilt is a plastic based foundation made by Dadant. It has metal strengtheners on the edges of the deep foundation and was claimed that this meant you didn't need to wire it.
The real issue with it is that the cell starters are wax based applied to a smooth film of plastic and once the cell layouts disappeared the bees ignored the foundation. Like may others when I used duragilt I found that even new the bees didn't like it and tended to build burr comb islands attached at points to the foundation and also to the frames next to them. This made it impossible to lift a frame without the foundation in the frame next to it collapsing. I have several hundred sheets of duragilt that I am just about to throw away after having removed and replaced with wax this year and say thankfully that I have finally eradicated from all my frames.
Every once in a while i run across an old Duragilt frame in my hives. I used it when i first started beekeeping 10 years ago. It's usually the one with bare spots and lots of brace and burr comb. I throw it away as I find it.
It's easy to install and sounds good in theory, but my bees never figured out how to use it.
1.3. Toxic Substances in Nectar and Sugar Supplement
Adult bees can utilize glucose, fructose, sucrose, trehalose, maltose, and melezitose, but bees are unable to digest rhaminose, xylose, arabinose, galactose, mannose, lactose, raffinose, melibiose or stachyose. Most of these sugars are also toxic to honey bees. About 40% of sugars found in soybeans are toxic to bees, and therefore care should be taken when using soybeans as a pollen substitute.
40% of what base #, number?
It's the stachyrose % by weight that can be of concern.
But, the stachyrose is diluted down so much by the sugars and other food stuffs that are added to the total mix.
yes - and aspirin is so toxic to humans that it would never be approved today. We ingest toxic substances all the time - good thing we have a liver. I have not seen any compelling data so this is just shooting from the hip. If someone had a really large study and found the health of the bees quantitatively reduced due to soy protein consumption then I would still wonder about the cost-benefit arguments. I normally shy away from manmade foods of any kind assuming they are inferior to natured offerings but it is really difficult to get good, cheap pollen.
i used brood builder this spring, my bees ate it up and they are doing well, this is my first year and i also use duragilt, but then dadant is only 30 minutes away. so they do get a lot of my business. i have about 6 more patties and that my be the fall/winter feeding?
both my hives have duragilt and one is doing the funky comb drawing and the other is fine.
i have pretty much decided for the size of my operation and how little tim i have to just buy my frame assembled with plastic foundation. it is just under $19 more to buy them assembled when i buy 60 frames. granted i am picking them up.
Soy is used to boost protien content, not sugar content. Sugars are easy to rinse out when they proccess the soy so I doubt there's tons of soy sugar in Dadant's patties.
I use Brood Builder and haven't had any problems. They gobble it up and look great. If it's poisonous, someone forgot to tell my bees.:shhhh: If you're doing this as a business you'd be hard pressed to find the same performance versus cost deal from any of the bee supply companies.
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