نتایج جستجو برای: apis mellifera l
تعداد نتایج: 626727 فیلتر نتایج به سال:
Toxicity effects of the neonicotinoid insecticides clothianidin, imidacloprid, and thiamethoxam were tested in the laboratory on different honey bee (Apis mellifera L.) genotypes belonging to the following subspecies: Apis mellifera mellifera L., Apis mellifera ligustica Spinola, and Apis mellifera carnica Pollmann. Oral and indirect contact trials were carried out on adult worker honey bees fo...
background : nosemosis of european honey bee (apis mellifera ) is present in bee colonies worldwide. until recently, nosema apis had been regarded as the causative agent of the disease, that causes heavy economic losses in apicultures. nosema ceranae is an emerging microsporidian parasite of european honeybees, a. mellifera , but its distribution is not well known. previously, nosemosis in ho...
The first step in fundamental breeding of any living organism is the determination of its genetic make-up. To investigate the genetic make-up of the European honeybee (Apis mellifera L.) in Iran, some research attempts were made during the years 1992-1996 in which the bee's relationship with some exotic races were determined through the application of morphological methods. For this purpose 130...
The mineral, total amino acid, and sterol compositions of pollen collected by Apis mellifera L. were compared with the pollen of a plant consumed by Bombus terrestris (L.): Arbutus unedo L. This plant provides the predominant food resource for the main autumn generation of B. terrestris in southern France. Honey bees also forage on this plant, although only for nectar. The mineral composition o...
The mineral, total amino acid, and sterol compositions of pollen collected by Apis mellifera L. were compared with the pollen of a plant consumed by Bombus terrestris (L.): Arbutus unedo L. This plant provides the predominant food resource for the main autumn generation of B. terrestris in southern France. Honey bees also forage on this plant, although only for nectar. The mineral composition o...
Apis mellifera jemenitica Ruttner (= yemenitica auctorum: videEngel 1999) has been used in apiculture throughout the Arabian Peninsula since at least 2000 BC. Existing literature demonstrates that these populations are well adapted for the harsh extremes of the region. Populations of Apis mellifera jemenitica native to Saudi Arabia are far more heat tolerant than the standard races often import...
objective(s):previous studies demonstrated a functional similarity between vertebrate and honey bee nervous systems. the aim of the present study was to compare the effects of heroin and iranian street kerack, a combination of heroin and caffeine, on sensory threshold and locomotor activity in honey bees. materials and methods: all drugs were given orally to honey bees 30 min before each experi...
به منظور ارزیابی اثر تغذیه ای مواد پروتئینی مختلف در جیره های غذایی زنبوران عسل کارگر آزمایش هایی با 15 تیمار به صورت طرح کاملاً تصادفی با چهار تکرار روی زنبور عسل اروپایی ( apis mellifera l) انجام گرفت . در این آزمایش ها اثر تغذیه ای 15 تیمار روی مدت زمان مربوط به تلفات 50 درصد و طول عمر زنبورهای کارگر در قفس بررسی گردید. تأثیر تغذیه کیک های جانشین گرده گل، شامل پودر دانه سویا، پودرکنجاله سویا،...
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