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The role of inverted sugar syrup in enhancing sealed brood quantity and bee colony productivity in warre hives
(Bursa Uludağ Üniversitesi, 2025-10-18) Tsvetan Tsvetanov; Ralitsa Balkanska
The primary aim of this study is to evaluate the impact of inverted sugar syrup supplementation on sealed brood quantity and colony strength in Warre hives, compared to traditional sucrose syrup feeding. The experiment consisted of 14 honey bee colonies, equally distributed between the control group (n = 7) and the experimental group (n = 7). The bee colonies were established at an apiary near Tran, Pernik region, Bulgaria. Our study shows that bee colonies fed inverted sugar syrup had significantly higher average values of sealed worker brood and colony strength compared to those in the control group from April to October in Warre hives. While these short-term results are promising and positive, long-term studies could reveal more about the lasting effects on bee health and productivity in this hive system. These results can help beekeepers choose better feeding strategies to maintain healthy and strong bee colonies in regions with insufficient pasture.
Effects of concentrations of sugar, vitamins, and amino acıds on survival and tolerance of honey bees to lowtemperature stress
(Bursa Uludağ Üniversitesi, 2025) Elgebaly, Heba I.; Nassar, Atef M.K.; Adnan A.E. Darwish; Abou-Shaara, Hossam F.
Honey bees (Apis mellifera) may experience brief periods of cold stress, particularly in autumn and winter. Meanwhile, beekeepers often supplement their colonies with artificial nutrition during these periods. This practice can expose honey bees to varying sucrose concentrations, vitamins, and amino acids in their diet. Therefore, this study examines how these nutritional components influence the honey bees' ability to withstand cold stress in laboratory settings. This study comprised three subexperiments: I) Comparing three concentrations (40%, 60%, and 80%) of sugar syrup + water as control group, II) Comparing three concentrations (0.02%, 0.06%, and 0.12% (equivalent to 10, 30, and 60 μL / 50 mL of 60% sugar syrup) of vitamins + 60% sugar syrup only as control group, and III) Comparing three concentrations (0.02%, 0.06%, and 0.12% (equivalent to 10, 30, and 60 μL / 50 mL of 60% sugar syrup) of amino acids/vitamins mixture + 60% sugar syrup only as control group. The concentration of 60% sugar syrup was selected as the solvent for vitamins and amino acids/vitamins mixture because preliminary sucrose experiments showed that 60% provided the highest cold stress tolerance. Three parameters were used to evaluate the ability of honey bees to withstand cold stress conditions: time until narcosis, time until recovery, and survival after recovery. Bees were exposed to 4°C until narcosis and then transferred to room temperature (25 ± 1 °C) for recovery. The results showed that bees fed on 60% sugar syrup performed better in terms of the measured parameters compared to other concentrations or the control group. Supplementation of sugar syrup with vitamins had an impact on the measured parameters, showing superior results in the vitamin 0.06% (30 μL/50 mL) group. Regarding the amino acids/vitamins mixture, some improvements in the ability of honey bees to tolerate cold stress conditions were recorded. This study provides insights into the effects of nutrition on honey bees' tolerance to low-temperature stress, laying the groundwork for further research.
First molecular detection of the acute bee paralyses virus (abpv) of the honey bee (apis mellifera L.) in Azerbaijan
(Bursa Uludağ Üniversitesi, 2025-10-14) Gazi, Rafiga
Almost all regions of Azerbaijan are engaged in beekeeping. There is a significant demand for bee products. In recent years, there has been an increase in the number of bee deaths in the country, and cases such as bees not returning home. While monitoring the beehives in the areas where we conducted the research, cases such as the loss of the ability to fly and tremors were observed in the bees. As a result of PCR analysis, the ABPV virus was detected for the first time in the materials collected from the North-East and South-East regions of Azerbaijan. The highest prevalence was recorded in Guba region of the North-East zone of the country (62.5%) and Astara region of the SouthEast zone (75%). In the North-East zone, the least infection was found in the samples taken from Shabran region, and in the South-East zone, in Masalli. The study revealed that almost 40% of ABPV cases were concentrated in the eastern part of the country.
Balın antioksidan ve antibakteriyel özellikleri üzerinde bitkisel kökenin etkisi
(Bursa Uludağ Üniversitesi, 2025-08-25) Ishenbaeva, Nazgül; Adil Akai, Ruslan; Smanalieva, Jamila
A study conducted on 22 samples of honey harvested from different regions of Kyrgyzstan in 2023 confirmed that the quality and beneficial properties of honey directly depend on its botanical origin. This emphasizes the importance of considering these factors when evaluating honey and its potential use in the food industry, medicine, and other areas. The taste, aroma, color, and consistency of honey varied according to botanical origin. Honey collected from certain plants had a more pronounced aroma and intense flavor. Parameters such as moisture, free acidity, and diastase number were in line with international norms. These parameters also depended on the region of collection and the type of plants from which the nectar was collected. Notably, the diastase number was negatively correlated with the radical inhibition concentration (r = -0.464). For example, honey samples 1, 9, and 15 exhibit the highest antioxidant activity, which is attributed to their polyfloral composition, particularly when pollen of Lamiaceae (r=-0.527) and Asteraceae (r=-0.520) is present. The antioxidant properties of honey, which are essential in protecting the body from free radicals, vary according to the botanical composition. Some samples exhibited high activity, making them particularly valuable for health applications. Honey demonstrated the ability to inhibit the growth of certain bacteria, confirming its traditional use in folk medicine.
Azerbaycan'da Bozdağ Kafkas Arisi ırkının (apis mellifera caucasica) yeni seçilen islah grubuna ait göstergeler
(Bursa Uludağ Üniversitesi, 2025-09-18) Aliyeva, Vusala
A research work was conducted in the Lesser Caucasus region to create and reproduce a new productive selection-breeding group of the Bozdag Caucasian bee breed (Apis mellifera caucasica) Kabaktapa population. The research was conducted in the “Beekeeping Center” in the Goranboy district of the Scientific Research Institute of Animal Husbandry of the Republic of Azerbaijan. Artificial selection was carried out on 30 bee colonies that met normal standards and were similar in origin, number of bees in the hive, feed, and bee growth. Among the 30 bee colonies, 5 bee colonies (No. 9, 17, 28, 31, and 34) with the highest quality indicators were selected for selection-breeding work. The ability of female queens No. 9, 17, 28, 31, and 34 to pass their quality and productivity indicators onto the next generation was determined in the following year. New queens were bred from 5 bee colonies, and 10 female queens were selected from each colony and adopted into 50 strong colonies. As a result of the selection and breeding work carried out on the Kabaktapa population of bees, a breeding bee group was created that can pass on good traits such as long proboscis, high nectar collection, low brood production, calm behaviour, etc. to the next generation.