Microscopy Archives - Scientific Beekeeping https://scientificbeekeeping.com/nosema-ceranae/microscopy/ Beekeeping Through the Eyes of a Biologist Mon, 07 Jun 2021 16:20:00 +0000 en-US hourly 1 Calculation for nosema spore count using a hemacytometer https://scientificbeekeeping.com/calculation-for-nosema-spore-count-using-a-hemacytometer/ Mon, 07 Jun 2021 16:20:00 +0000 https://scientificbeekeeping.com/?p=7244 calculation of nosema spore counts using hemacytometer Randy Oliver, ScientificBeekeeping.com From Cantwell 1970, assuming that each sampled bee is diluted with 1 mL of water.         Average spore count per bee is then: Average count per single small square x 4,000,000. Total count per large square (16 small squares) x 250,000. Or […]

The post Calculation for nosema spore count using a hemacytometer appeared first on Scientific Beekeeping.

]]> Sick Bees – Part 13: Simple Microscopy of Nosema for Beekeepers https://scientificbeekeeping.com/sick-bees-part-13-simple-microscopy-of-nosema/ Sun, 27 Nov 2011 05:00:48 +0000 https://scientificbeekeeping.com/?p=835 CONTENTS Equipment Needed Taking Bee Samples Processing the Samples Bringing the Spores into Focus Spore Identification Counting the Spores Care and Feeding of your Microscope Coming Up   Sick Bees – Part 13: Simple Microscopy of Nosema for Beekeepers Randy Oliver ScientificBeekeeping.com First published in ABJ November 2011–this article extensively revised in March 2019. It […]

The post Sick Bees – Part 13: Simple Microscopy of Nosema for Beekeepers appeared first on Scientific Beekeeping.

]]> The “Nosema Twins” – Part 2 Detection & Microscopy https://scientificbeekeeping.com/the-nosema-twins-part-2-detection-microscopy/ Wed, 30 Mar 2011 18:00:57 +0000 https://scientificbeekeeping.com/?p=133 The “Nosema Twins” – Part 2 Detection & Microscopy © Randy Oliver ScientificBeekeeping.com First Published in ABJ in Jan. 2008 Last fall, getting wind of Nosema ceranae, I carefully collected a few bees from a dozen or so hives from each yard, and sent the whole pooled sample of 500 bees off to a lab […]

The post The “Nosema Twins” – Part 2 Detection & Microscopy appeared first on Scientific Beekeeping.

]]> Field of View Count Correlation https://scientificbeekeeping.com/field-of-view-count-correlation/ Thu, 24 Feb 2011 01:27:36 +0000 https://scientificbeekeeping.com/?p=164 Field of View Count Correlation Report to the California State Beekeepers Association by Randy Oliver ScientificBeekeeping.com First Published inABJ in Oct. 2008   Determination of “spore count” Nosema infection level is reported in a standardized “spore count” of “average number of spores per bee,” generally given in millions (1 million = 1 x 106). The […]

The post Field of View Count Correlation appeared first on Scientific Beekeeping.

]]>