
Authors: M.M. Morais,T.M. Francoy,R.A. Pereira, D. De Jong, L.S. Gon�§alves
The hygienic behavior of honey bees is based on a two-step process, including uncapping and removing diseased, dead, damaged, or parasitized brood inside the cell. We evaluated during periods of 1 h the time that hygienic and non-hygienic colonies of Africanized honey bees spend to detect, uncap and remove pin-killed brood usi.. Read More»
Authors: K.P. Gramacho, L.S. Gon�§alves
In Apis mellifera, hygienic behavior involves recognition and removal of sick, damaged or dead brood from capped cells. We investigated whether bees react in the same way to grouped versus isolated damaged capped brood cells. Three colonies of wild-type Africanized honey bees and three colonies of Carniolan honey bees were use.. Read More»
Authors: H. Jie, P.M. Li, G.J. Zhao, X.L. Feng, D.J. Zeng, C.L. Zhang, M.Y. Lei, M. Yu and Q. Chen
The amino acids in royal jelly (RJ) have a wide range of pharmacological and health-promoting functions in humans. Multiple studies on the amino acid quality and composition in RJ have investigated RJ harvested at 72 h after larval transfer. In contrast, the concentration of amino acids in RJ harvested before 72 h remains unknown. In this study, the conce.. Read More»
Authors: Alexandre S. Cristino, Adriana Mendes do Nascimento, Luciano da Fontoura Costa and Zil�¡ Luz Paulino Sim�µes
A comparison of the most conserved sex-determining genes between the fruit fly, Drosophila melanogaster, and the honey bee, Apis mellifera, was performed with bioinformatics tools developed for computational molecular biology. An initial set of protein sequences already described in the fruit fly as participants of the sex-det.. Read More»
Authors: Matthias Herrmann, Tina Trenzcek, Hartmut Fahrenhorst and Wolf Engels
Diploid males have long been considered a curiosity contradictory to the haplo-diploid mode of sex determination in the Hymenoptera. In Apis mellifera, ‘false’ diploid male larvae are eliminated by worker cannibalism immediately after hatching. A ‘cannibalism substance’ produced by diploid drone larvae .. Read More»
Authors: M.M. Morais, A.P. Turcatto, R.A. Pereira, T.M. Francoy, K.R. Guidugli-Lazzarini2, L.S. Gon�§alves, J.M.V. de Almeida, J.D. Ellis and D. De Jong
Pollen substitute diets are a valuable resource for maintaining strong and health honey bee colonies. Specific diets may be useful in one region or country and inadequate or economically unviable in others. We compared two artificial protein diets that had been formulated from locally-available ingredients in Brazil with bee bread and a non-protein sucros.. Read More»
Authors: Carminda da Cruz Landim and Rodrigo Pires Dallacqua
We used light and transmission electron microscopy to examine the morphology of the accessory glands of immature and mature adult males of Apis mellifera L. We also made an electrophoretic analysis of the protein content of the mature gland. The glands of the immature male actively secrete a mucous substance that can be seen i.. Read More»
Authors: Ghazwan Kanbar and Wolf Engels
The ectoparasitic bee mite, Varroa destructor, is highly adapted to its natural and adopted honey bee hosts, Apis cerana and Apis mellifera. Adult females perforate the integument of bee pupae in such a way that they and their progeny can feed. We examined the wounds that founder females made, and usually found one, and rarely.. Read More»
Authors: H. Rasolofoarivao, H. Delatte, L.H. Raveloson Ravaomanarivo,B. Reynaud and J. Cl�©mencet
Hygienic behavior (HB) is one of the natural mechanisms of honey bee for limiting the spread of brood diseases and Varroa destructor parasitic mite. Objective of our study was to measure HB of Apis mellifera unicolor colonies (N = 403) from three geographic regions (one infested and two free of V. destructor) in Madagascar. The pin-killing method was used.. Read More»
Authors: Maria Alejandra Palacio, Jose Manuel Flores, Emilio Figini, Sergio Ruffinengo, Alberto Escande, Enrique Bedascarrasbure, Edgardo Rodriguez and Lionel Segui Gon�§alves
Most research on hygienic behavior has recorded the time taken by the colony to remove an experimental amount of dead brood, usually after one or two days. We evaluated the time that hygienic (H) and non-hygienic (NH) honey bees take to uncap and remove dead brood in observation hives after the brood was killed using the pinki.. Read More»