Publications Scientifiques

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Author: search.filters.author.Jamal Haddad, NizarSubject: search.filters.subject.Apis mellifera intermissa

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    The first data on hygienic behavior of Apis mellifera intermissa in Algeria
    (2014) Adjlane, Noureddine; Jamal Haddad, Nizar
    Hygienic behavior is considered as an important factor in selection programs of resistance honey bee mite to Varroa destructor, the objective of this study was to evaluate this behavior Apis mellifera intermissa, the local honey bee race of Algeria. The study was performed on 40 colonies in spring and fall. The results had show a variation in the removal rate of dead brood where it was 91 .56% in spring and, 83.55% in autumn. This is the first test of hygienic behavior in Apis mellifera intermissa in Algeria. We can conclude, that the Algerian local bees are characterized by a good cleaning ability.
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    Complete mitochondrial genome of the Algerian honeybee, Apis mellifera intermissa (Hymenoptera: Apidae)
    (Taylor and Francis Online, 2016) Hu, Peng; Lu, Zhi-Xiang; Jamal Haddad, Nizar; Adjlane, Noureddine; Loucif-Ayad, Wahida; Yong-Zhi, Wang; Zhang, Ai-Ling
    In this study, the complete mitochondrial genome sequence of Algerian honeybee,Apismellifera intermissa, is analyzed for the first time. The results show that this genome is 16,336 bpin length, and contains 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNAgenes, and 1 control region (D-loop). The overall base composition is A (43.2%), C (9.8%),G (5.6%), and T (41.4%), so the percentage of A and T (84.6%) is considerably higher than that ofG and C. All the genes are encoded on H-strand, except for four subunit genes (ND1,ND4,ND4L,andND5), two rRNA genes (12Sand16S rRNA), and eight tRNA genes. The completemitochondrial genome sequence reported here would be useful for further phylogeneticanalysis and conservation genetic studies inA.m.intermissa.
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    Detection of deformed wing virus in the local bee colonies apis mellifera intermissa in algeria and its relationship with varroa destructor
    (2014) Adjlane, Noureddine; Jamal Haddad, Nizar
    Honeybees are threatened by over 18 viruses, nowadays deformed wing virus (DWV) is known to be one of the most prevalent virus worldwide.. This is the first study in Algeria and most North Africa region which is evaluating the prevalence of the DWV in beehives. The objective of this study is to eva-luate the impact of this virus on honey bees mortality, and its relationship to infestation with the Varroa destrutor parasitic mite. We conducted this study on an apiary located in the central region of Algeria. PCR results showed the presence of DWV in Apis mellifera intermissa honey bee colonies, where 42% of the samples are infected with the virus. We highlighted the role of V. destructor and its association with the DWV and the mortality recorded in the same apiary