Decomposition and ecology sucession of goat carcass (Capra aegagrus hircus l.) killed by overdose of ivermectin and exposed under natural conditions

• Grant number: 10/14521-4
• Support Opportunities: Scholarships in Brazil - Master
• Start date: March 01, 2011
• End date: February 28, 2013
• Field of knowledge: Biological Sciences - Parasitology - Entomology and Malacology of Parasites and Vectors
• Principal Investigator: Arício Xavier Linhares
• Grantee: Daniel Luz Brancoli
• Host Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The Artropods are known to be adapted to different environments, and distributed through different biomes. Therefore, carcasses found in various environments promote an attraction to several arthropods, reaching the substrate moments after the occurrence of death. Because of these characteristics, these arthropods may serve as a useful tool for forensic procedures.One of the main uses of insects in forensic science is on estimating the postmortem interval (PMI) by using the knowledge about the age of the insect, its biology and behavior of all fauna present on the carcass in order to estimate the smallest possible range of occurrence of death.Several factors can interfere in the life cycle of the insects (Temperature, larval body temperature, humidity, presence of substances in the carcasses and others). These factors may promote an extension or shortening of the cycle, thus affecting the estimation of PMI. These factors should be evaluated and taken into consideration; so making the corrections on the PMI, leading to more accurate and reliable procedure.The entomotoxicology is the area that studies the effect of substances (drugs and toxins), present on tissues and fluids from the carcass, on the development of arthropod. Thus being able to refine the pericial procedures, guiding cases involving both medication and illicit drugs.With the increase in the number of cases of deaths of economically important animals by intoxication with several drugs, it is necessary a study related to the veterinary entomotoxicology, an area that requires specific studies.This study aims to analyze systematically a faunistic survey of organisms associated with decomposition, using as a model animal carcasses of goats (Capra hircus L. aegagrus), killed by an overdose of ivermectin administered subcutaneously and exposed in natural environment, inside appropriate traps for the study objectives. In sum, to assess possible differences in the development of the immature feeding on tissues containing ivermectin, and still evaluating the larval mass, as its temperature and pattern of colonization of the carcass. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

BRANCOLI, Daniel Luz. The effect of ivermectin on the duration of decomposition's phases, on scavengers insects and thermographic interpretation of diptera's maggots masses colonizing carcasses of goats (Capra aegagrus hircus L., 1758). 2013. Master's Dissertation - Universidade Estadual de Campinas (UNICAMP). Instituto de Biologia Campinas, SP.