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- MakaleAçık Erişim2025Adverse Effects of Commonly Used Acaricides on the Reproductive Physiology of Drone Honeybees (Apis mellifera L.)
Erdogan, Yasar
This study evaluated the adverse effects of three widely used commercial acaricides (amitraz, flumethrin, and formic acid) on the reproductive physiology and quality parameters of drones (Apis mellifera caucasica), commonly used for the control of the destructive pest, Varroa destructor. The experiment was conducted on 20 colonies at the Bayburt University Beekeeping Application and Research Station during the spring-summer of 2025. The acaricides were applied to different experimental groups shortly before the drone cells were capped. Key reproductive quality parameters including body weight, sexual maturity rate, sperm viability, sperm concentration, and semen volume were assessed. The results showed that all three acaricide applications had statistically significant negative effects (p<0.05) on all measured reproductive parameters. Notably, the amitraz and formic acid treatments caused the most significant decreases in sperm viability and sperm concentration. Furthermore, compared to the control group, significant reductions were observed in both sexual maturity rates and drone body weights. The amitraz treatment group, in particular, exhibited the lowest sperm concentration (0.90±0.04×106/μL), a finding that aligns with the most substantial decrease in body weight (52.24 mg lower than the control). These findings clearly demonstrate that the common acaricidal compounds used against Varroa mites pose potential physiological and reproductive risks to drone. This highlights a critical concern for sustainable beekeeping, especially in queen bee rearing programs, and underscores the need for careful consideration of treatment methods and timing.
- MakaleYalnız künye2021Apitherapy and Muscle Damage
Ceylan, Ramazan; Erdogan, Yasar
Aim: This study aims to compare the effects of dolgit cream, an anti-inflammatory drug in the NSAID group, is frequently used in treating injuries after sports activities, and natural honey, used due to its anti-inflammatory effect, on muscle damage. Methods: Twenty-one amateur male athletes voluntarily participated in this study (Age: 21 +/- 3). The participants were divided into three groups as honey treatment group (n=7), drug treatment group (n=7), and control group (n=7). In the gym, one-session of intense interval training consisting of movements (unusual push-ups, diamond push-ups, dips) in which the athletes participating in the study were not used was applied. Blood samples were taken consecutively for five days, one time before and four times after the training program. Blood samples were analyzed biochemically, and activation of Creatine Kinase (CK), Lactate Dehydrogenase (LDH) enzymes were determined. Besides, the participants' pain levels (Visual Analogue Scale) were monitored for four days after the training. SPSS 22.0 package program was used for data analysis. The suitability of the data for normal distribution was analyzed with the Shapiro-Wilk test, and it was determined that the data were not distributed normally. Kruskal-Wallis test was applied to determine the acute effect of the treatment protocols carried out in the treatment of muscle damage after the training Results: According to the result, no statistically significant difference was found between the treatment groups and the control group in the activation of CK, LDH in the blood serum (p>.05). According to the pain scale follow-up results, it was observed that the pain scores of the participants in the group who received honey treatment were lower and statistically significant in the 1st after the training (p<.05) Conclusion: As a result, the external application of natural honey in sports injuries may support modern medical treatment practices
- MakaleAçık Erişim2020Scopus SJRQ4The effects of medical and aromatic plant extracts on some physiological characteristics of honeybee (Apis Mellifera l.) colonies; [Tibbi ve Aromatik Bitki Ekstraktlarinin Balarisi (Apis mellifera L.) Kolonilerinin Bazi Fizyolojik Özellikleri Üzerine Etkisi]
Erdogan, Yasar; Cengiz, M. Murat
In this study, the effects of extracts obtained from medicinal and aromatic plants added to syrups used to feeding honeybee (Apis mellifera L.) colonies on some physiological characteristics of colonies were investigated. The experiment was carried out on 6 groups of 5 colonies. These groups are syrup (S), syrup + Urtica dioica (SU), Syrup + Melissa officinalis (SM), Syrup + Hypericum perforatum (SH), Syrup + Achillea millefolium (SA) and syrup + Thymus serpyllum (ST). As a result of the research, the sealed brood area data were determined as 3013.24±1939.26, 3107.00±2060.42, 3270.81±2194.80, 3091.20±1962.69, 3273.90±2095.49 and 3613.06±2348.27 cm2 in S, SU, SM, SH, SA, ST groups, respectively. When we compare the honey yields of the experimental groups, according to group S, SU increased by 18.48%, SM 43.10%, SH 16.04%, SA 27.35% and ST 53.86%. Therefore, syrup + medicinal and aromatic plant extract mixture given to honey bee colonies may have a positive effect on colony development and honey yield.
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İncele - MakaleAçık Erişim2018Scopus SJRQ3Effects of Root Plant Growth Promoting Rhizobacteria Inoculations on the Growth and Nutrient Content of Grapevine
Erdogan, Ummugulsum; Turan, Metin; Ates, Fadime; Kotan, Recep; Çakmakçi, Ramazan; Erdogan, Yasar; Kitir, Nurgül; Tüfenkçi, Sefik
The objective of this study was to evaluate the effects of seven nitrogen (N2)-fixing and/or phosphorus (P)-solubilizing and siderophore-producing microorganism based bio-fertilizers in single and triple strain combinations isolated from the acidic rhizospheric soil of native tea, grapevine, and wild red raspberries. As a result of this study, bacterial efficiency was found to be variable and depended on the bacterial strains and evaluated growth parameters. Plant growth-promoting rhizobacteria (PGPR) has improved macro- and micro-nutrient concentrations in grapevine leaves, and stimulated plant growth. Triple inoculation and single inoculation based bio fertilizers were found to stimulate overall plant growth, including shoot and leaf weight, main shoot length, leaf ground index, chlorophyll, nitrogen, zinc and iron content of grapevine cv ‘Italy’. Bio-fertilizers increased the nutrients such as nitrogen, zinc and iron concentrations and consequently increased the chlorophyll content of the leaves.
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