The Effects of Miticides on the Reproductive ... - Semantic Scholar
Aug 2, 2007 - (APV), sacbrood, black queen-cell virus, Kashmir bee virus (KBV), and deformed wing virus (DWV) to healthy ...... penetrates cell membranes causing the nucleus of all the sperm cells to fluoresce a bright blue color (Visser 1981). .... Within 1-2 days after queen confinement, drone cells were checked for ...
The Effects of Miticides on the Reproductive Physiology of Honey Bee (Apis mellifera L.) Queens and Drones
Lisa Marie Burley Thesis submitted to the faculty of Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of: Master of Science in Life Sciences
Advisory Committee: Dr. Richard D. Fell, Chair Dr. Carlyle C. Brewster Dr. Donald E. Mullins Dr. Richard G. Saacke August 2, 2007 Blacksburg, Virginia Tech Keywords: Apis mellifera L., Reproductive Physiology, Miticides, Spermatozoa viability, Numbers of Spermatozoa, Honey Bee, Queen, Drone Copyright 2007, Lisa Marie Burley
The Effects of Miticides on the Reproductive Physiology of Honey Bee (Apis mellifera L.) Queens and Drones Lisa Marie Burley
Abstract The effects of miticides on the reproductive physiology of queens and drones were examined. The first study examined the effects of Apistan® (fluvalinate), Check Mite+ (coumaphos), and Apilife VAR® (74% thymol) on sperm production and viability in drones. Drones from colonies treated with each miticide were collected at sexual maturity. Sperm production was determined by counting the number of sperm in the seminal vesicles. Sperm for viability assays was analyzed by dual fluorescent staining. Apilife VAR® and coumaphos significantly lowered (P
Aug 2, 2007 - Keywords: Apis mellifera L., Reproductive Physiology, Miticides, ..... 50% loss of haemolymph protein content and total haemolymph ..... two-branched spermathecal gland plays a role in the delivery of spermatozoa into the.
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Aug 15, 2011 - The presence of Einstellung is typically tested by using task sets that have multiple problems of the ... the extent to which problem solvers fail to recognize and use the more efficient solution, the degree ...... Hoeksema-van Orden,
both studies, participants completed a task battery of memory, reaction time and attention tasks. ..... good or how deep participants found their sleep the morning after ... Cognitive and psychomotor tests. An overview of the results is presented in