Reproductive ability of queen beesunder the influence of heavy metals and fatty acids of bee pollen
In the literature, there are only fragmentary data on the content of heavy metals and fatty acids in bee pollen and tissues of honey bees kept in different natural zones of the Carpathian region. The aim of the work was to determine the relationship between the content of Zinc, Copper, Lead, Cadm...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Publishing House of the Institute of Agriculture of the Carpathian Region of NAAS
2023-09-01
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| Series: | Передгірне та гірське землеробство і тваринництво |
| Subjects: | |
| Online Access: | https://journals.isgkr.science/index.php/phzt/article/view/195 |
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| Summary: | In the literature, there are only fragmentary data on the content of heavy metals and fatty acids in bee pollen and tissues of honey bees kept in different natural zones of the Carpathian region.
The aim of the work was to determine the relationship between the content of Zinc, Copper, Lead, Cadmium and unsaturated fatty acids of the omega-3, omega-6, omega-7 and omega-9 families in bee pollen and the intensity of egg-laying by queen bees kept in hives located in separate natural zones of the Carpathian region.
Experimental apiaries of clinically healthy honey bees of the Carpathian breed were selected on the basis of private apiary farms in the mountain, foothill and forest-steppe zones of the Lviv region. In order to assess the intensity of man-made load on the environment, where experimental honey bee apiaries are located, the content of heavy metals in the topsoil, bee comb and abdominal tissues of honey bees was determined. In the second half of the spring period, in each of the above-described natural areas of the Carpathian region, in 3 apiaries and in each of 3 hives, samples of bee pollen and honey bees were taken for laboratory research. In addition, samples of the arable layer of the soil were taken in the radius of the useful flight of honey bees. In each of the above-described natural zones of the Carpathian region, in 3 apiaries and in each of 3 hives in the second half of the spring period, for 36 days, every twelfth day, the intensity of egg-laying of queen bees was studie.
The content of heavy metals, including toxic ones, was determined in selected samples of the topsoil, bee pollen and honey bee abdominal tissues. The content of unsaturated fatty acids in samples of bee pollen and honey bee tissues was determined as well.
It has been established that Cuprum and especially Zinc are characterized by relatively high coefficients of transition from the arable soil layer to bee colony in various natural zones of the Carpathian region. At the same time, the transfer coefficients of Cadmium and especially Plumbum into bee pollen are very low. It was recorded that in the direction from the mountain to the foothills and forest-steppe zone of the Carpathian region, the coefficient of transition of Zinc from the arable layer of the soil to the bee colony decreases. At the same time, the assimilation of Cadmium by plants increases.
In the direction from the mountain to the foothills and forest-steppe zone of the Carpathian region, due to the high concentration of Zinc, Copper, Plumbum and especially Cadmium, the value of unsaturated fatty acids of bee pollen for intensive egg-laying of queen bees decreases. The egg-laying intensity of queen bees kept in hives located in the foothills and especially in the forest-steppe zones of the Carpathian region is lower than that of queen bees in the mountainous zone.
Bee pollen and abdominal tissues of honey bees can serve as a bioindicator of the ecological state of the environment by the content of heavy metals and unsaturated fatty acids. An integrated indicator such as the intensity of egg-laying by queen bees can also serve as a good bioindicator of the ecological state of the environment.
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| ISSN: | 0130-8521 2786-5231 |