Comparative studies on the biology and filarial susceptibility of selected blood-feeding and autogenous Aedes togoi sub-colonies
Mem. Inst. Oswaldo Cruz
;
98(4): 481-485, June 2003. tab
Article
in English
| LILACS
| ID: lil-344239
ABSTRACT
Blood-feeding and autogenous sub-colonies were selected from a laboratory, stock colony of Aedes togoi, which was originally collected from Koh Nom Sao, Chanthaburi province, Southeast Thailand. Comparative biology and filarial susceptibility between the two sub-colonies (blood-feeding F11, F13; autogeny F38, F40) were investigated to evaluate their viability and vectorial capacity. The results of comparison on biology revealed intraspecific differences, i.e., the average egg deposition/gravid female (F11/F38; F13/F40), embryonation rate (F13/F40), hatchability rate (F11/F38; F13/F40), egg width (F11/F38), wing length of females (F13/F40), and wing length and width of males (F11/F38) in the blood-feeding sub-colony were significantly greater than that in the autogenous sub-colony; and egg length (F11/F38) and width (F13/F40), and mean longevity of adult females (F11/F38) and males (F13/F40) in the blood-feeding sub-colony were significantly less than that in the autogenous sub-colony. The results of comparison on filarial susceptibility demonstrated that both sub-colonies yielded similar susceptibilities to Brugia malayi [blood-feeding/autogeny = 56.7 percent (F11)/53.3 percent(F38), 60 percent(F13)/83.3 percent(F40)] and Dirofilaria immitis [blood-feeding/autogeny = 85.7 percent(F11)/75 percent(F38), 45 percent(F13)/29.4 percent(F40)], suggesting autogenous Ae. togoi sub-colony was an efficient laboratory vector in study of filariasis
Full text:
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Index:
LILACS (Americas)
Main subject:
Brugia malayi
/
Aedes
/
Dirofilaria immitis
/
Feeding Behavior
/
Insect Vectors
Limits:
Animals
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
2003
Type:
Article
Affiliation country:
Thailand
Institution/Affiliation country:
Chiang Mai University/TH
/
Mahidol University/TH
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