R. Shumkova* Research Centre of Stockbreeding and Agriculture, 4700 Smolyan, Agricultural Academy, Sofia, Bulgaria (Manuscript received 20 June 2022; accepted for publication 11 November 2022) Abstract. The development of the honeybee colony depends on the availability of pollen and n

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

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

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

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

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

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

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

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