Characterizing the Impact of Commercial Pollen Substitute Diets on the Level of Nosem
Results 1 to 3 of 3
  1. #1
    Join Date
    Jan 2010
    Location
    Alachua County, FL, USA
    Posts
    10,025

    Default Characterizing the Impact of Commercial Pollen Substitute Diets on the Level of Nosem

    Characterizing the Impact of Commercial Pollen Substitute Diets on the Level of Nosema spp. in Honey Bees (Apis mellifera L.)
    Western honey bee (Apis mellifera L.) populations face declines commonly attributed to pesticide, pathogen, and parasite stress. One way beekeepers combat these stressors is by providing supplemental protein diets to honey bee colonies to ensure adequate colony nutrition. However Nosema spp., a microsporidian parasite of the honey bee, is thought to be associated closely with a colonyís nutritional intake, thus possibly negating any benefit the bees otherwise would have received from a nutritional supplement. Through three objectives, we examined how adult beesí consumption of wildflower pollen or commercial pollen substitute diets affected Nosema levels in the beesí midguts. For our first objective, we investigated how method of inoculation with Nosema affects infection levels in inoculated bees. Bees were infected with spores of Nosema four days after emergence. On day 15, bees were collected from the cages and Nosema spores were quantified. We found that inoculation through the pollen diet resulted in the highest Nosema levels in inoculated bees. In our second and third objectives, we provided the test diets to caged, newly emerged bees for a period of 15 days. Bees consuming pollen and a sucrose solution had more Nosema in their midguts than did bees consuming the sucrose solution alone (control). The overall volume of diet consumed by the bees did not correlate with the level of Nosema in their midguts. The level of Nosema was higher in bees fed certain commercial pollen substitute diets than in bees fed wildflower pollen. Our study illustrates how providing nutritional supplements to adult honey bees can impact the intensity of Nosema in their midguts.
    http://journals.plos.org/plosone/art...l.pone.0132014
    americasbeekeeper.com
    [email protected]

  2. Remove Advertisements
    BeeSource.com
    Advertisements
     

  3. #2
    Join Date
    Jan 2011
    Location
    Great Falls Montana
    Posts
    7,849

    Default Re: Characterizing the Impact of Commercial Pollen Substitute Diets on the Level of N

    My anecdotal experienc is tha my bees were sampled for disease including nosema the end of May and my colonies still had 15 pct pollen patties from globalpatties.com on them. My nosema levels were negligible. I never treat for nosema either.

  4. #3
    Join Date
    Jul 2013
    Location
    Morro Bay, California, USA
    Posts
    2,272

    Default Re: Characterizing the Impact of Commercial Pollen Substitute Diets on the Level of N

    Thanks for your continuing efforts posting the journal abstracts. This is a really valuable contribution.
    Do you keep these references in a Bibliographic database (EndNote, Mendelay, etc)?

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •