Results 51 to 60 of about 1,058 (162)

North American Propolis Extracts From Upstate New York Decrease Nosema ceranae (Microsporidia) Spore Levels in Honey Bees (Apis mellifera)

open access: yesFrontiers in Microbiology, 2020
Nosema ceranae infections in honey bees (Apis mellifera) pose a severe threat to colony health. Beekeepers have used dicyclohexylammonium fumagillin to control Nosema apis, although it may be ineffective against N. ceranae. We investigated the ability of
Andre J. Burnham   +8 more
doaj   +1 more source

Nosema ceranae (Microsporidia: Nosematidae) Does Not Cause Collapse of Colonies of Africanized Apis mellifera (Hymenoptera: Apidae) in Tropical Climate

open access: yesSociobiology, 2020
Nosemosis is an important disease that affects honey bees (Apis mellifera Lineu), caused by obligate intracellular parasites, Nosema  apis  and/or  Nosema  ceranae. Since the initial detection of N. ceranae in A.
Lubiane Guimarães-Cestaro   +6 more
doaj   +1 more source

Reproductive Potential Impacts Body Maintenance Parameters and Global DNA Methylation in Honeybee Workers (Apis mellifera L.)

open access: yesInsects, 2021
The widely accepted hypothesis in life history evolution about the trade-off between fecundity and longevity is not confirmed by long-living and highly fecund queens in eusocial insects.
Jerzy Paleolog   +3 more
doaj   +1 more source

Microsporidiosis Causing Necrotic Changes in the Honeybee Intestine

open access: yesApplied Sciences, 2023
Background: Microsporidia from the Nosema (Vairimorpha) genus are pathogenic fungi that complete their life cycle in the honeybee intestine. Therefore, the aim of this study was to determine the impact of the course of infection on the viability of ...
Aneta A. Ptaszyńska, Marek Gancarz
doaj   +1 more source

Nosema Ceranae Interactions with Nosema apis and Black Queen Cell Virus

open access: yesAgriculture, 2021
Nosema ceranae is a relatively new pathogen of the honeybee (Apis mellifera) and the course of type C nosemosis (the disease that it causes) is not entirely known.
Anna Maria Gajda   +3 more
doaj   +1 more source

Presence of Nosemosis in Honeybees (Apis mellifera) in Ordu Province

open access: yesTurkish Journal of Parasitology, 2015
The aim of this study is to study occurrence of nosemosis in honey bees in Ordu Province and compare disease factors morphologicaly.Totally 200 adult bees were collected from ten localities in Ordu Province and examined for nosemosis. Spores of the disease factors were measured and photographed using an Olympus BX51 microscope with a DP-25 digital ...
Mustafa, Yaman   +3 more
openaire   +2 more sources

Mapping the teaching of honeybee veterinary medicine in the European Union and European Free Trade Area

open access: yesVeterinary Record Open, Volume 6, Issue 1, January 2019., 2019
Background Honey bee (Apis mellifera) is a very important species for human beings, animals, environmental biodiversity, crop production and economic sustainability in Europe and worldwide. This study investigates whether future veterinarians are trained to deal with the particular needs of the only traditional food‐producing insect in Europe.
Despoina Iatridou   +5 more
wiley   +1 more source

Sulfonamide Residues: Honey Quality in the Czech Market

open access: yesJournal of Food Quality, Volume 2018, Issue 1, 2018., 2018
In this study, we determined four sulfonamide compounds (sulfadiazine, sulfadoxine, sulfamethoxazole, and sulfathiazole) in honey marketed in the Czech Republic (Brno). The content of these compounds was monitored in 50 honeys with different botanical and geographical origin.
Sandra Dluhošová   +4 more
wiley   +1 more source

The role of viral and parasitic pathogens affected by colony losses in turkish apiaries [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2020
Parasites and viruses are considered major agents of bee colony loss. The aim of this study is to detect the presence of seven viruses and three parasites - namely, Israeli acute bee paralysis virus (IAPV), deformed wing virus (DWV), sacbrood virus (SBV),
Gulnur KALAYCI   +7 more
doaj   +1 more source

Simultaneous Determination of Nitroimidazoles and Quinolones in Honey by Modified QuEChERS and LC‐MS/MS Analysis

open access: yesInternational Journal of Analytical Chemistry, Volume 2018, Issue 1, 2018., 2018
This study reports an analytical method for the determination of nitroimidazole and quinolones in honey using liquid chromatography‐tandem mass spectrometry (LC‐MS/MS). A modified QuEChERS methodology was used to extract the analytes and determine veterinary drugs in honey by LC‐MS/MS.
Haiyan Lei   +7 more
wiley   +1 more source

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