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La.ora.ory Growth of <i>a.opheles ga.bia.</i>(diptera. Culicida.) a.d Morphologica. determinism of Moulting

a.va.ces in Entomology 2021年第4期9卷 176-185页

作者： Henri Ga.riel Tsila.Pa.rick a.ono ntonga a.vine La.issa.Meya.eme Elono Timoleon Tchuinka. Mpoa.e Mbida Biology a.d a.plied Ecology Unit Resea.ches Department of Animal Biology Faculty of Science University of Dschang Dschang Cameroon Vector Borne infectious disea.es La.ora.ory Department of Animal Biology Faculty of Science University of Dschang Dschang Cameroon Biology a.d Physiology of a.ima. Orga.isms La.ora.ory Department of Animal Organisms University of Douala Douala Cameroon Forestry depa.tment Faculty of Agronomy and Agricultural Sciences University of Dschang Dschang Cameroon

Growth in a.thropods in genera. a.d in insects in pa.ticula., is supposed to be discontinuous a.d occurs during moulting. in Culicida. in genera. a.d a.opheles in pa.ticula., the number of moults is five with the fou... 详细信息

Growth in a.thropods in genera. a.d in insects in pa.ticula., is supposed to be discontinuous a.d occurs during moulting. in Culicida. in genera. a.d i> i>Anophelesi>i> in particular, the number of moults is five with the fourth which gives the pupae. It is known that moulting in insects is a genetic and physiological phenomenon. Most physiological reactions are triggered by chemical or physical stimuli. The pressure exerted by the growth of the larval body on the exocuticle is one of the triggers of moulting. The objective of this work was therefore to determine the exact timing of the first three moults that determine the growth of i>i>An. gambiaei>i>a.> larvae from egg hatch to pupation to highlight the role of increased larval size in the stimulation of moulting. We therefore, undertook to rear larvae of this anopheline speciesi> i>in the laboratory under conditions close to their natural environment from hatching to pupation. The length and width of the head, thorax and abdomen were recorded daily. Data analysis showed that the size of the head and thorax remained constant for the first three days (D0 to D2) of development and abdomen’s length for the first two days and then increased daily until day seven (D7) when it stopped. These observations led us to say that the M1 moult occurs at end of the third day of development and the M3 moult at end of the eighth day;the M2 moult could not be determined. All these observations led to the conclusion that the larval growth of i>i>An. gambiaei>i>a.>a. style="font-fa.ily:Verda.a."> ha. a.c

关键词： a.opheles ga.bia. La.va Growth determinism Body Sizes Moulting

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