Faculty of Agricultural Sciences and Food

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A scientific note on ‘Rapid brood decapping’—a method for assessment of honey bee (Apis mellifera) brood infestation with Tropilaelaps mercedesae
(Springer Science and Business Media LLC, 2025-03-20)
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Janashia, Irakli
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Chen, Chao
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Costa, Cecilia
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Kovačić, Marin
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Standard methods for rearing and selection of Apis mellifera queens 2.0
(Taylor and Francis (United Kingdom), 2024-03-19)
Büchler, Ralph
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Bernstein, Richard
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Bienefeld, Kaspar
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Costa, Cecilia
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Standard methods for rearing and selection of <i>Apis mellifera</i> queens 2.0
(Informa UK Limited, 2024-03-19)
Büchler, Ralph
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Bernstein, Richard
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Bienefeld, Kaspar
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Costa, Cecilia
Here, we cover a wide range of methods currently in use and recommended in modern queen rearing, selection, and breeding. The recommendations are meant to serve as standards for scientific and practical beekeeping purposes. The basic conditions and different management techniques for queen rearing are described, including recommendations for suitable technical equipment. As the success of breeding programmes strongly depends on the selective mating of queens, a subsection is dedicated to the management and quality control of mating stations. Recommendations for the handling and quality control of queens complete the queen rearing section. The improvement of colony traits usually depends on a comparative testing of colonies. Standardised recommendations for the organisation of performance tests and the measurement of the most common selection characters are presented. Statistical methods and data preconditions for the estimation of breeding values that integrate pedigree and performance data from as many colonies as possible are described as the most efficient selection method for large populations. Alternative breeding programmes for small populations or certain scientific questions are briefly mentioned, including an overview of the young and fast developing field of molecular selection tools. Because the subject of queen rearing and selection is too large to be covered within this paper, ample references are given to facilitate comprehensive studies.
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Standard methods for rearing and selection of <i>Apis mellifera</i> queens 2.0
(Informa UK Limited, 2024-03-19)
Büchler, Ralph
;
;
Bernstein, Richard
;
Bienefeld, Kaspar
;
Costa, Cecilia
Here, we cover a wide range of methods currently in use and recommended in modern queen rearing, selection, and breeding. The recommendations are meant to serve as standards for scientific and practical beekeeping purposes. The basic conditions and different management techniques for queen rearing are described, including recommendations for suitable technical equipment. As the success of breeding programmes strongly depends on the selective mating of queens, a subsection is dedicated to the management and quality control of mating stations. Recommendations for the handling and quality control of queens complete the queen rearing section. The improvement of colony traits usually depends on a comparative testing of colonies. Standardised recommendations for the organisation of performance tests and the measurement of the most common selection characters are presented. Statistical methods and data preconditions for the estimation of breeding values that integrate pedigree and performance data from as many colonies as possible are described as the most efficient selection method for large populations. Alternative breeding programmes for small populations or certain scientific questions are briefly mentioned, including an overview of the young and fast-developing field of molecular selection tools. Because the subject of queen rearing and selection is too large to be covered within this paper, ample references are given to facilitate comprehensive studies.
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Queen ringing vs. queen caging for summer brood interruption
(Informa UK Limited, 2024-05-30)
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Chen, Chao
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Gabel, Martin
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Kovačić, Marin
In many temperate regions, increasing temperatures in the autumn and winter result in shorter or even non-existent brood breaks in honey bee (Apis mellifera L.) colonies. This facilitates a year-round reproduction of Varroa destructor and corresponding pathogen pressure. To address this problem, introducing an artificial brood break during winter might be essential. On the other hand, queen caging in summer, as one of the most prominent brood interruption methods, has already been accepted as an effective way for Varroa control in honey bee colonies. In this study, we compared queen caging vs. queen ringing as a novel technique for inducing summer brood interruption.
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Economic aspects of honey bee queen breeding: insights from a European study
(Informa UK Limited, 2024-06-14)
Dimitrov, Lazo
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Costa, Cecilia
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Meixner, Marina D.
In 2017, the European Commission initiated the EurBeST study to explore the possibilities of using selective breeding of honey bees to increase Varroa resistance traits. One of the specific aims of the study was to assess the process of honey bee queen breeding through an economic analysis. The methodology for calculating the costs of queen production (queen rearing and mating), colony evaluation and expenses for estimating breeding values is based on the Cost of Production (CoP). Cost data were collected via tailor-made questionnaires and interviews performed in five European countries (France, Germany, Greece, Italy, and Poland). The sample population consisted of 20 queen producers and 20 performance testers who participated in the study. The results showed that the average costs for queen production amounted to 22.58 per queen, ranging from 8.22 in Poland to 37.30 in France. The difference between the selling price and the production cost was on average 3.08 per queen, ranging from 15.86 in Germany to -12.30 in France. On average, the colony evaluation costs were 193.40 per colony. The average cost for breeding value estimation per queen was 8.09 . Thus, the average total cost per selected queen was 224 . The selective breeding of honey bees is an efficient way to increase productivity, reduce colony losses, improve bee health and enable profitable operations, but it is expensive, is usually promoted, practiced and implemented by scientists and researchers, and in most cases is financed by external sources.

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