Scientific Beekeeping

   Contents Diving into de groot Understanding what De Groot did The problem with normalizing to tryptophan Re-interpreting de groot’s findings Protein conversion — Patty into bees Justus von Liebig’s Law of the Minimum and essential amino acids My diet calculator So how about the tested diets? The homebrew formulation Not yet done … References The post A Comparative Trial…

A COMPARATIVE TRIAL OF THE POLLEN SUBS Part 4: Why did some Subs Outperform Others? Beekeeper-Funded Research Randy Oliver ScientificBeekeeping.com   Contents Back to my 2020 california trial Have we been focusing on the wrong suspects? Protein in Animal feed formulations Mixing of protein sources Crude Protein and Amino Acids EAAs as percent of crude The post A Comparative Trial…

Observations on Pollen Subs: Part 3 Placement of the Pollen Patty First published in ABJ October 2021 Randy Oliver ScientificBeekeeping.com There doesn’t appear to be a benefit from feeding pollen sub when there’s already a substantial natural pollen flow going on. On the other hand, during a dearth, pollen subs may perform better when the The post Observations on Pollen…

This is a very contentious subject, but how much of the media alarm over glyphosate is based upon actual risk assessment? Having run my garden and orchard organically for many years, I was faced with invasive Vinca major and Himalaya blackberries that were taking an  excessive amount of my time to control.  Weed whacking, horticultural vinegar, The post Glyphosate fact checking…

Observations on Pollen Subs Part 2 Why Didn’t My Test Hives Grow? First published in ABJ September 2021 Randy Oliver ScientificBeekeeping.com   After the first of July we find it difficult to get nucs to grow, despite continual feeding. Is the lack of response to feeding due to the heat, the day length, the lack The post Observations on Pollen…

A COMPARATIVE TRIAL OF THE POLLEN SUBS 2020 Part 3 Beekeeper-Funded Research First published in ABJ September 2021 Randy Oliver ScientificBeekeeping.com   Some research institutions avoid the testing of name-brand products for obvious reasons, and some trade magazines won’t publish articles that might offend their advertisers. We beekeepers are fortunate that Dadant & Sons and The post A Comparative Trial…

A COMPARATIVE TRIAL OF THE POLLEN SUBS 2020 Part 2 First published in ABJ August 2021 Vincent Riciglianoa and Randy Oliverb aUSDA-ARS, bScientificBeekeeping.com   Last month I described how we set up our comparative trial of several pollen subs. Now it’s time to bring in my collaborator, Dr. Vincent Ricigliano, to show the results of The post A Comparative Trial…

I gave this presentation at the Calif State Beekeepers Convention in 2013. 2013 Where does fed pollen patty pdf   The post Where does fed pollen sub go? appeared first on Scientific Beekeeping.

Thanks to Google for scanning this pioneering and widely-cited study.  Since this study is monumentally important to understanding honey bee nutritional requirements, I’ve unsuccessfully attempted to track down any copyright holder for permission to share it.  But as I understand copyright law, since this reprint does not contain any indication of this pre-1978 publication being The post de Groot 1953…

Observations on Pollen Subs Part 1 First published in ABJ July 2021 Randy Oliver ScientificBeekeeping.com I get a lot of questions about what the bees do with pollen subs, why, when, and how to feed them, or even if it’s worth the effort. Since I’ve done a goodly amount of investigation on this subject, allow The post Observations on Pollen…