Seasonal variation in toxicity of citral against Fasciola larva
10.12980/APJTB.4.2014C1102
- Author:
Sunita Kumari
;
Kumar Pradeep
;
Singh Kumar Dinesh
- Publication Type:Journal Article
- Keywords:
Fasciolosis;
Sporocyst;
Redia;
Cercaria;
Citral;
Lymnaea acuminata
- From:Asian Pacific Journal of Tropical Biomedicine
2014;(z2):584-588
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To test whether the larvicidal activity of citral against Fasciola varies by season.
Methods:Mortality of Fasciola larva in different month of year (2011-2012) in in vitro and in vivo condition were observed at 2 h, 4 h, 6 h and 8 h exposure of citral.
Results:In vitro toxicity of citral against redia was highest in between the June to August (8 h LC50: 2.58-2.62 mg/L), whereas against cercaria 8 h LC50 was in between 3.44-2.62 mg/L. Highest in vivo toxicity against redia was noted in between June to August (8h LC50: 4.20-5.09 mg/L). The lowest toxicity was observed from November to April. The highest temperature, free carbon dioxide, and lowest pH, dissolved oxygen were observed from June to August.
Conclusions:The present study conclusively shows that varying a biotic factor can significantly alter the in vitro and in vivo toxicity of citral against sporocyst redia and cercaria larva.
