Beekeeping in various parts of the world. Evolutionary aspects of the Africanization of honey bee populations in the Americas. Africanized Bees and Bee Mites. New York:John Wiley and Sons,
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Honey production by two types of africanized honey bees hybrids of Apis mellifera scutellata in western plains of Venezuela. Manrique 2. To evaluate honey yields of africanized honey bee colonies, two types of queens were used: not improved Venezuelan queens, and Brazilian queens selected for propolis production. Five nucleus were founded with queens breed in Venezuela and the other five with Al queens from Brazil.
Honey yields of February and April were weighted. Experiment design was a complete randomized and analyzed with a " t " test to compare honey average yields.
To obtain better honey yields, beekeepers must use improved quality honeybee queens and selected queen for propolis production also produce more honey. Key words: Africanized honeybee, genetic improvement, honey yield, Venezuela. Even though the high cost of supplies and equipments, few research on africanized hybrid bee AHB behavior, limited information about how to manage these bees, few specialized breeding centers, and low genetic improvement of commercially produced queens, the Venezuelan beekeeping industry has shown, in the last decade, an increase in the number of beekeepers and hives in production.
Each colony from the apiary will have a maximum population and a particular level of honey production directly related to the queen's reproductive behavior. It should be highlighted that the high variability of the reproductive and productive behavior observed among lines of AHB open new expectations for the genetic improvement of these hybrids and creates the bases to develop new research about this issue, as Brazil has already initiated.
Technically speaking one of the greatest advances in the beekeeping industry has been the development and achievement of new genetic-controlled queen breeding in laboratories using instrumental insemination and controlling the quality of the genetic material involved Root, Arellano et al.
Southwick and Farrar sustained that the commercial beekeeper's main interest is to maintain healthy and strong colonies using vigorous queens to produce eggs continually. Almeida sustained that the simplest method to breed a queen is by retiring the "old" queen bee from the colony so that the nurse bees start to " draw-out" royal queen cells, from the brood's nest combs, where chosen young larvae continue to be fed with royal jelly. Farrar pointed out that for a high number of commercial queen breeders, the reproductive and productive behavior of queen bees are determined by the compound genetic load and for the prevailing environment in the surroundings of the breeding apiaries during the mating flight.
Thimann sustained that, although the AHBs had settled in Venezuela for more than 20 years, honey yields have remained almost unaltered. This result suggests that the low productivity of the local AHB resides in the low quality of the queens mated under natural conditions used by the commercial beekeepers and to the little scientific information related to the issue.
Generally, most of the work on genetic improvement in honeybees have tried to improve honey productivity. On the other hand, Manrique working with selected africanized honey bees to produce propolis, also produced more propolis than Africanized honey bees without selection. The main objective of this study was to compare two types of AHB queens. At the Production. Langstroth hives were used and a 1 lt internal feeder was placed inside the hive with sugar syrup. All colonies had the same handling and similar population size.
Honey harvests were in February and in April Data obtained from the two honey harvests were analyzed by "t" test. Treatments were distributed as follow:. T 1 : five nucleus with queens from Venezuela. T 2 : five nucleus with queens from Brazil queen improved for propolis production. Experimental period began in December with the foundation of the nuclei and ended in April It is recommended to requeen colonies every years. These results showed that queens selected for propolis production also produce more honey.
Servicios Personalizados Articulo. Similares en SciELO. Treatments were distributed as follow: T 1 : five nucleus with queens from Venezuela T 2 : five nucleus with queens from Brazil queen improved for propolis production Experimental period began in December with the foundation of the nuclei and ended in April It is recommended to requeen colonies every years These results showed that queens selected for propolis production also produce more honey.
Almeida E. Salvador, Brazil. Arellano N. Azuaje y R. Thimann, R. Cale G. Queen recognition by worker honeybees. Gleanings in Bee Culture, Costa D. Manejo de Rainhas. Dadant The hive and the honeybee. Dadant and Sons, Carthage. Delaplane K. The honeybee queen. American Bee Journal, 1 Duay P. Dissertacao de Mestre em Entomologia. Farrar C. Productive management of honeybees. American Bee Journal, 1 : Hellmich R and G. Preparing for Africanized Honeybee: Evaluating control in mating apiaries.
Laidlaw H. Contemporary queen rearing. Manrique A. Selecao de abelhas africanizadas para a melhoria na producao de propolis. Impact and current situation of the africanized bee in Venezuela. Durban, South Africa, p. Morales G. In: Morales, G. Root A. Root Co. Ruttner F. Editorial Apimondia. Southwick E. Queen right. Thimann R. Universidad Ezequiel Zamora, Guanare. Apdo Maracay Edo Aragua.
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