29
MAR
2022

Hygienic behavior and fat body development in worker bees (Apis mellifera L.)

S. Lazarov*, I. Zhelyazkova Department of Animal husbandry – Non-Ruminants and other Animals, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 2 November 2021; accepted for publication 3 February 2022) Abstract. Testing for the level of manif
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30
DEC
2018

Effectiveness of Oxalis bee and Ecostop for prophylaxis and control of varroosis in honey bees (Apis mellifera L.)

I. Zhelyazkova*, S. Lazarov Department of Animal husbandry – Non-ruminants and other animals, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 24 August 2018; accepted for publication 26 October 2018) Abstract. The objective of the present st
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29
SEP
2016

Honey bees and their products as indicators of environmental pollution: A review

D. Salkova*, M. Panayotova-Pencheva Department of Experimental Parasitology, Institute of Experimental Morphology, Pathology and Anthropology with Museum, Bulgarian Academy of Sciences, Acad. G. Bonchev 25, 1113 Sofia, Bulgaria (Manuscript received 18 January 2016; accepted for public
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29
SEP
2015

Stimulating feeding and development of hypopharyngeal and thoracic glands of honeybees (Apis mellifera L.)

R. Shumkova1, I. Zhelyazkova2* 1Experimental Station of Stockbreeding and Agriculture, 4700 Smolyan, Bulgaria 2Department of Animal Science, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria Abstract. The effect of some stimulating products on the development of t
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14
MAY
2014

Study of bee honey by spectral analysis in the near infrared spectrum

I. Zhelyazkova, S. Atanasova , K. Elencheva – Karaneycheva Abstract. The objective of the present study is to examine samples of bee honey of different origin and create models for their classification through spectral analysis in the near infrared spectrum. Representative samples uni
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14
MAY
2014

Effect of the feeding of products stimulating the development of bee colonies

R. Shumkova, I. Zhelyazkova Abstract. The study was conducted in the spring and autumn of 2011 at the Experimental apiary of the Agricultural and Stockbreeding Experimental Station (ASES), Smolyan and at the private apiary of Mitev’s bee farm, Smolyan. For stimulating feeding of
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13
MAY
2014

Research on the stimulating effect of Tribulus terrestris on the oviparous activity of the queen bees

I. Hristakov Abstract. All major processes in the bee colony are closely related to nectariferous vegetation in the area. Oviparous activity of queen bees is directly dependent on the flow of nectar and pollen in the bee colony. When it rises it leads to increase of the oviparous acti
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12
MAY
2014

Content of heavy metals and metalloids in bees and bee products from areas with different degree of anthropogenic impact

I. Zhelyazkova, S. Atanasova, V. Barakova, G. Mihaylova Abstract. Sample taking was carried out in the active bee season of 2010 (June – July) in order to make a comparative analysis of the content of some heavy metals and metalloids (copper Cu, zinc Zn, lead Pb, cadmium Cd, nickel Ni
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