Rearing techniques are important to determine a successful honey bee production. Queen cell cup size may affect the acceptance rate of grafted larvae and queen’s size, which in turn may influence the quality of the colonies. The present study compared the effect of different queen cell cup sizes (8.0 vs 9.0mm diameter) on morphometric characteristics of queen honey bees. Sixty-five larvae were grafted to each treatment. Larvae transfer was carried out five times, in June and August 2019. Head, thorax and abdomen width of the newly emerged queens were measured using an electronic calliper, and the weight of each of the three segments was recorded using a precision scale. All morphometric traits measured on the accepted larvae were significantly (p<.001) higher in queens raised in larger cell cups, except for head width. Principal Component Analysis on morphometric traits shows higher values on PC1 (58.4% of explained variance) for queens raised in larger cell cups. Highest loadings were found for variables related to weight of the three parts. Among the many factors affecting queen’s quality, cell cup size seems to have a positive effect on queens’ body parts weights.

Effect of queen cell size on morphometric characteristics of queen honey bees (Apis mellifera ligustica) / S. Mattiello, R.M. Rizzi, M. Cattaneo, P.A.M. Martino, M. Mortarino. - In: ITALIAN JOURNAL OF ANIMAL SCIENCE. - ISSN 1828-051X. - 21:1(2022), pp. 532-538. [10.1080/1828051X.2022.2043790]

Effect of queen cell size on morphometric characteristics of queen honey bees (Apis mellifera ligustica)

S. Mattiello
Primo
;
R.M. Rizzi
Secondo
;
P.A.M. Martino
Penultimo
;
M. Mortarino
Ultimo
2022

Abstract

Rearing techniques are important to determine a successful honey bee production. Queen cell cup size may affect the acceptance rate of grafted larvae and queen’s size, which in turn may influence the quality of the colonies. The present study compared the effect of different queen cell cup sizes (8.0 vs 9.0mm diameter) on morphometric characteristics of queen honey bees. Sixty-five larvae were grafted to each treatment. Larvae transfer was carried out five times, in June and August 2019. Head, thorax and abdomen width of the newly emerged queens were measured using an electronic calliper, and the weight of each of the three segments was recorded using a precision scale. All morphometric traits measured on the accepted larvae were significantly (p<.001) higher in queens raised in larger cell cups, except for head width. Principal Component Analysis on morphometric traits shows higher values on PC1 (58.4% of explained variance) for queens raised in larger cell cups. Highest loadings were found for variables related to weight of the three parts. Among the many factors affecting queen’s quality, cell cup size seems to have a positive effect on queens’ body parts weights.
Honey bee; queen quality; virgin queen; cell cup size; queen morphometric traits
Settore AGR/19 - Zootecnica Speciale
Settore AGR/17 - Zootecnica Generale e Miglioramento Genetico
Settore VET/06 - Parassitologia e Malattie Parassitarie degli Animali
Settore VET/05 - Malattie Infettive degli Animali Domestici
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/916744
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