Effect of the number of spermatozoa entering the spermatheca on the onset of oviposition in naturally mated and instrumentally inseminated queen honey bees

Gąbka, Jakub

doi:10.1080/00218839.2021.1994258

Cited by 4 publications

(8 citation statements)

References 36 publications

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“…The percent of dead queens after insemination in this experiment (7.8) was similar to the results reported by others (3.3-7.9) (Bieńkowska & Panasiuk, 2006;Chuda-Mickiewicz et al, 2012;Gąbka et al, 2016;Gąbka & Cobey, 2018;Gąbka, 2022). In the experiments by Ebadi & Gary (1980), Kaftanoglu & Peng (1980, 1982 and Moritz & Kühnert (1984), the mortality rates were higher (16-35%).…”

Section: Discussionsupporting

confidence: 90%

“…Therefore, the median value is significant, not the mean. This confirms results obtained by Woyke et al (2008), Gerula et al (2011, Gąbka & Woyke (2014) and Gąbka (2022). Throughout the discussion, however, the number of days to oviposition refers to the mean value, because most authors compare in statistical analysis the mean, not the median.…”

Section: Discussionsupporting

confidence: 83%

“…02, 3.05, 3.33, and 4.64 million (on average) spermatozoa started oviposition 16.3, 12.3, 10.0, and 5.6 days, respectively, after the insemination. On the contrary, Gąbka (2022) showed no significant differences in the beginning of egg laying in queens with less than 3 million or 3-4, 4-5, and more than 5 million spermatozoa in the spermathecae. Also, different results were obtained in the case of flights' effect on the onset of oviposition in instrumentally inseminated queens.…”

Section: Introductionmentioning

confidence: 65%

“…The same flight after insemination, though, did not affect the onset of oviposition. In past research experiments, carbon dioxide exposure used for the anaesthesia of queens usually lasted for three minutes (Camargo & Goncalves, 1971;Engels et al, 1976;Woyke et al, 1995Woyke et al, , 2008Chuda-Mickiewicz et al, 2012;Gąbka, 2022) or ten minutes (Mackensen, 1947;Engels et al, 1976;Ebadi & Gary, 1980;Kaftanoglu & Peng, 1980, 1982Moritz & Kühnert, 1984;Woyke & Jasiński, 1990;Manfredini et al, 2015). According to Konopacka (1991), onset of oviposition by instrumentally inseminated queen honey bees is directly related to the time of anaesthesia.…”

Section: Introductionmentioning

confidence: 99%

“…It is commonly known that two carbon dioxide treatments accelerate the beginning of egg laying in queens. Additional anesthesia is most commonly used one or two days before or after insemination (Mackensen, 1947;Kaftanoglu & Peng, 1980, 1982Harbo & Szabo, 1984;Moritz & Kühnert, 1984;Skowronek et al, 1995;Woyke et al, 2001Woyke et al, , 2008Chuda-Mickiewicz et al, 2012;Gerula et al, 2011Gerula et al, , 2016Manfredini et al, 2015;Gąbka, 2022). However, the minimum time between anaesthesias needed for ovary activation has not yet been examined.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Time Between Carbon Dioxide Treatments on the Onset of Oviposition in Queen Honey Bees

Gąbka

Zajdel

2022

Journal of Apicultural Science

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It is commonly known that two carbon dioxide treatments accelerate the beginning of egg laying in honey bee queens. However, the minimum time between anaesthesias needed for ovary activation has not yet been examined. The aim of the study was to investigate the effect of time between carbon dioxide treatments on the onset of oviposition in instrumentally inseminated and virgin queen honey bees. About half of the queens were anaesthetised before insemination and a second time during insemination, and the rest of the queens were anaesthetised two times without insemination. The time between carbon dioxide treatments was as follows: 96, 48, 24, 12, 6, 3 hrs, 10 min, 5–6 sec. Queens in a control group were anaesthetised only once. The mean number of days between the second treatment and the onset of oviposition in particular groups and in the control group was 10.3, 7.6, 9.9, 10.5, 7.8, 10.9, 14.2, 15 and 21.9, respectively, and the median was 9, 7, 7, 8, 7, 8.5, 11.5, 13 and 21 days, respectively. Queens in groups 5–6 sec and 10 min began oviposition significantly earlier than those in control group, but significantly later than in groups from 3 to 96 hrs. Instrumentally inseminated queens started to lay eggs at the same time (mean 12 and median 9 days after second treatment) as queens treated with carbon dioxide without insemination (mean 11.7 and median 9 days).

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 83%

Section: Introductionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of Time Between Carbon Dioxide Treatments on the Onset of Oviposition in Queen Honey Bees

Gąbka

Zajdel

2022

Journal of Apicultural Science

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Effect of different anaesthesia treatments on the onset of oviposition by virgin queen honey bees

Gąbka

2023

Journal of Apicultural Research

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Comparison of pooled semen insemination and single colony insemination as sustainable honeybee breeding strategies

Du,

Bernstein,

Hoppe

2024

R. Soc. Open Sci.

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Instrumental insemination of honeybees allows for two opposing breeding strategies. In single colony insemination (SCI), all drones to inseminate a queen are taken from one colony. In pooled semen insemination (PSI), sperm of many genetically diverse drones is mixed and queens are fertilized from the resulting drone pool. While SCI allows for maximum pedigree control, proponents of PSI claim to reduce inbreeding and maintain genetic variance. Using stochastic simulation studies, we compared genetic progress and inbreeding rates in small honeybee populations under SCI and PSI. Four different selection criteria were covered: estimated breeding values (EBV), phenotypes, true breeding values (TBV) and random selection. Under EBV-based truncation selection, SCI yielded 9.0% to 44.4% higher genetic gain than PSI, but had vastly increased inbreeding rates. Under phenotypical or TBV selection, the gap between SCI and PSI in terms of genetic progress narrowed. Throughout, PSI yielded lower inbreeding rates than SCI, but the differences were only substantial under EBV truncation selection. As a result, PSI did not appear as a viable breeding strategy owing to its incompatibility with modern methods of genetic evaluation. Instead, SCI is to be preferred but instead of strict truncation selection, strategies to avoid inbreeding need to be installed.

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Effect of the number of spermatozoa entering the spermatheca on the onset of oviposition in naturally mated and instrumentally inseminated queen honey bees

Cited by 4 publications

References 36 publications

Effect of Time Between Carbon Dioxide Treatments on the Onset of Oviposition in Queen Honey Bees

Effect of Time Between Carbon Dioxide Treatments on the Onset of Oviposition in Queen Honey Bees

Effect of different anaesthesia treatments on the onset of oviposition by virgin queen honey bees

Comparison of pooled semen insemination and single colony insemination as sustainable honeybee breeding strategies

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