Effect of different concentrations of three kinds of gliricidia (Gliricidia sepium) leaves extracts on the hatchability of Haematopinus tuberculatus (Carabao Lousse) eggs
Date
6-2016
Degree
Doctor of Veterinary Medicine
College
College of Veterinary Medicine (CVM)
Adviser/Committee Chair
Billy P. Divina
Abstract
In the Philippines, carabao (Bubalus bubalis) raisers control Haematopinus tuberculatus and its eggs by either shaving the hair of their animals or insecticide application. Commercial insecticide products usually do not have claim on ovicidal activity. Louse eggs are thought to be less susceptible to insecticides. This study determined the efficacy of three gliricidia leaves extracts and their varying concentrations on the hatchability of H. tuberculatus eggs. Louse eggs from an infested carabao bull were collected and examined microscopically for shell integrity. There were six treatments namely, untreated control, distilled water, 50% amitraz solution, and aqueous infusion, decoction and 80% ethanolic extract of fresh gliricidia leaves with concentrations of 15%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and 100%. Louse eggs were incubated for up to 15 days at 37+ 1.5 °C and relative humidity of 55-70%. Results showed that gliricidia leaves extracts in the form of decoction, infusion and 80% ethanolic extract were highly effective in reducing the hatchability of the eggs. Further, 30-100% concentrations of the three extracts did not significantly differ with amitraz in their efficacy.
Language
English
Location
UPLB College of Veterinary Medicine (CVM)
Call Number
LG 993.5 2016 V4 R67
Recommended Citation
Rosuello, Zarah M., "Effect of different concentrations of three kinds of gliricidia (Gliricidia sepium) leaves extracts on the hatchability of Haematopinus tuberculatus (Carabao Lousse) eggs" (2016). Undergraduate Theses. 4638.
https://www.ukdr.uplb.edu.ph/etd-undergrad/4638
Document Type
Thesis