DEVELOPMENTAL ZERO AND EFFECTIVE ACCUMULATED TEMPERATURE OF ONCOME LANIA EGGS UNDER CONSTANT TEMPERATURE
- VernacularTitle:钉螺卵在恒温环境中发育零点和有效积温的研究
- Author:
Qingbiao HONG
;
Yuji JIANG
;
Kun YANG
;
Weiping XI
;
Leping SUN
;
Yixin HUANG
;
Xiaonong ZHOU
;
- Publication Type:Journal Article
- Keywords:
Oncomelania hupensis egg;
Developmental zero temperature;
Effective accumulated temperature
- From:
Chinese Journal of Schistosomiasis Control
1992;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the de ve lopmental zero and effective accumulated temperature of Oncomela nia eggs under con stant temperature. Methods The eggs were cultur ed under different constant temperature, and their development duration and effe ctive accumulated temperature were studied. The zero accumulated temperature (℃ ) was obtained by using an estimation mode, and the effective accumulated temp erature was obtained by effective accumulated mode of K=N(T-C). [WT5”H Z] Results The average development duration was (27.29?17 .2 9) d under 15-30 ℃, the development zero temperature was 11.79 ℃ and 38.22 ℃ u nder low and high temperature respectively, and the average development temperat ure and effective accumulated temperature were (557.76?198.95) DD and(236 .02 ?68.20) DD.Conclusion The suitable developme nt temperature of eggs is 27 ℃, the development speed and effective accumulated t e mperature of eggs increases with the temperature under given condition, but too high temperature may have negative impact on the development of eggs. The resul t can be considered as the basic biological parameter of the snail.
