A study was carried out on the forensic entomological evaluation of carrion insects of pigs poisoned with paraquat between July and September 2018, on the main campus of the University of Ibadan. Paraquat is a commonly used suicide agent because it is easily available and very cheap. Pigs for the study were obtained from Akinyele meat market in Ibadan, Oyo state. The pigs were then weighed and euthanized with 60ml and 80ml of paraquat while the third pig without poison served as the control. Adult carrion insects were collected from the carrions using a sweep net and they are then immobilized using by spraying them with insecticide. The larva were collected into a bowl by using a spoon. The larvae were then immobilized with hot water and are later placed in appropriate sample bottles. Pupae were collected using a forces.
Inhaltsverzeichnis (Table of Contents)
- CHAPTER ONE
- INTRODUCTION
- Entomotoxicology
- Carrion insects
- Paraquat
- Aims and Objectives of the Study
- CHAPTER TWO
- LITERATURE REVIEW
- Introduction
- Medico-legal forensic entomology
- Stored product entomology
- Urban forensic entomology
- Decomposition
- Insect Succession
- Factors affecting fly development
- Types of Carrion Insect and Arthropods
- Paraquat
- Review of Previous Literatures
- CHAPTER THREE
- MATERIALS AND METHOD
- Study Site
- Sample collection and processing
- Preparation of Pigs for Set-up
- Mounting the pigs
- Sampling of carrion insect stages
- Measurement of larval body length and weight
- Measurement of carcass temperature and humidity
- CHAPTER FOUR
- RESULTS
- Abundance and species composition of carrion insects on pig carcass
- Carrion insect succession on pig carcass
- Effects of paraquat on the length and weight of the control, 60ml and 80ml larva
- Variations in environmental variables at the field site
- CHAPTER FIVE
- DISCUSSION
- Abundance and species composition of carrion insects on pig carcass
- Carrion insect succession on pig carcass
- Effects of paraquat on the length and weight of larvae
- Variations in environmental variables at the field site
- Conclusion
- REFERENCES
Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)
This research investigates the forensic entomological evaluation of carrion insects associated with pigs poisoned with paraquat. The study aims to analyze the impact of paraquat poisoning on insect succession, species composition, and larval development.- Forensic entomology application in toxicology cases.
- Impact of paraquat poisoning on carrion insect communities.
- Analysis of insect succession patterns in decomposing pig carcasses.
- Examination of the effects of paraquat on larval development.
- Assessment of environmental factors influencing insect activity.
Zusammenfassung der Kapitel (Chapter Summaries)
- Chapter 1: This chapter introduces the study by defining entomotoxicology, explaining the role of carrion insects in forensics, and providing background information on paraquat. It also outlines the study's specific aims and objectives.
- Chapter 2: This chapter presents a comprehensive literature review covering various aspects of forensic entomology, including medico-legal entomology, stored product entomology, urban forensic entomology, and decomposition processes. It delves into insect succession, factors affecting fly development, types of carrion insects and arthropods, and the effects of paraquat.
- Chapter 3: This chapter details the materials and methods employed in the study. It describes the study site, the procedure for sample collection and processing, the preparation and mounting of pigs, the sampling of carrion insect stages, and the measurement of larval body length and weight.
- Chapter 4: This chapter presents the results of the study, analyzing the abundance and species composition of carrion insects on pig carcasses, the succession of insect species, the effects of paraquat on larval development, and variations in environmental variables at the field site.
- Chapter 5: This chapter discusses the findings of the study, interpreting the results in relation to existing literature and highlighting the significance of the findings for forensic entomology and toxicology.
Schlüsselwörter (Keywords)
This study delves into the fascinating world of forensic entomology and toxicology. It focuses on the impact of paraquat poisoning on carrion insect communities, specifically examining insect succession, species composition, and larval development. Key terms encompass forensic entomology, toxicology, paraquat, carrion insects, decomposition, and crime investigations.
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- Emmanuel Tyokumbur (Author), 2020, Paraquat Effects on Carrion Insects. A Forensics Entomotoxicological Assessment Using Euthanized Pigs, Munich, GRIN Verlag, https://www.hausarbeiten.de/document/1360162
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