royal jelly how do you milk a hive???

Squeeze queen cells, or scoop it out of queen cells. Workers also have a royal jelly but it is in smaller quantities per cell.

http://youtu.be/tZCQgMYBjWw

This video explains the basics of production

Workers have worker jelly. Similar to Royal Jelly but not exactly the same. Not sure how they would do it in a large scale, but I went to a queen rearing class at Virginia Tech and they talked about removing royal jelly for queen rearing purposes from unwanted queen cells.

All royal jelly comes from the hypopharyngeal glands and mandibular glands of young workers (nurse bees) plus sugars and in some cases may pollen mixed in.

Newly emerged bees have undeveloped hypopharyngeal and mandibular glands. Hypopharyngeal glands are paired glands inside worker’s head, consisting of a long central duct with many “grapes” (acini) attached. The glands will only develop after consuming a lot of pollen for the first 7-10 days. The glands first secrete the protein-rich component of royal jelly in young bees, but then secrete invertase, which is used to convert sucrose to simple sugars (fructose and glucose), in foragers. Mandibular glands are simple, sac-like structures attached to the base of each mandible. The glands secrete lipid-rich components of the royal jelly in young bees, but produce an alarm pheromone (2-heptanone) in foragers.

http://www.beeccdcap.uga.edu/documents/CAPArticle10.html

Click to expand...

See section 6.6 of this page for ideas on large scale collection of royal jelly:
http://www.fao.org/docrep/w0076e/w0076e16.htm

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You may be correct Radar, but I was taught that royal jelly is 50/50 hypopharyngeal and mandibular, whereas worker is 60 to 80 from the hypopharyngeal gland, and 40 to 20 percent from the mandibular gland.

My earlier post was not as accurate as it could have been, and I have modified it. Royal jelly is more accurately described as a mix of proteins from the hypopharyngeal gland, lipids from the mandibular gland, and sugars from the nurse bee's honey crop/stomach.

The specific ratios from each source change depending on the intended recipient of the jelly (worker larva vs queen larva) and the age of the larva being fed.

An older thread that offers discussion on the various ratios:
http://www.beesource.com/forums/sho...highlight=mandibular+hypopharyngeal#post80761

Other royal jelly references:
http://www.coloss.org/beebook/I/artificial-rearing/2
http://bmbreports.org/jbmb/jbmb_files/[36-6]0311211159_p572.pdf
https://insects.tamu.edu/continuing...assword/Internal_Anatomy_of_Honey_Bees_PN.pdf
http://books.google.com/books?id=-5...ular glands bees jelly hypopharyngeal&f=false