Microscopy
Field of View Count Correlation
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 “Nosema Twins” – Part 2 Detection & Microscopy
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...
Sick Bees – Part 13: Simple Microscopy of Nosema for Beekeepers
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...
Calculation for nosema spore count using a hemacytometer
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...
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