Meet the editor

Editor Edward J. Narayan works as an animal biologist at the School of Science and Health of Western Sydney University. He earned his PhD in biology and has contributed to the establishment of noninvasive hormone monitoring technology to assess reproductive and stress hormones in amphibians. Dr. Narayan completed postdoctoral research in Australia and Canada and has had research stints in New Zealand and India. He has pub-

lished over 70 peer-reviewed journal articles and supervised numerous masters and doctoral students in Australia and abroad. Dr. Narayan's current research program expands from wildlife conservation to production animals, and he directs the STRESS LAB at Western Sydney University.

Contents

Conservation and Livestock Science

Ontogeny of the Human Pancreas

*by Edward Jitik Narayan*

*and Sergey V. Saveliev*

in Male and Female Rats

*by Ramachandra Reddy Pamuru*

**Preface III**

**Chapter 1 1**

**Chapter 2 9**

**Chapter 3 29**

**Chapter 4 53**

**Chapter 5 75**

Deltamethrin Alters Thyroid Hormones and Delays Pubertal Development

A Review on the Influence of Climate Change on Sheep Reproduction

Introductory Chapter: Applications of Stress Endocrinology in Wildlife

*by Alexandra E. Proshchina, Yuliya S. Krivova, Larisa E. Gurevich, Valeriy M. Barabanov, Dmitriy A. Otlyga, Iya A. Voronkova* 

*by Shui-Yuan Lu, Pinpin Lin, Wei-Ren Tsai and Chen-Yi Weng*

*by Gregory Sawyer and Edward Jitik Narayan*

Endocrinology of Reproduction in Crustaceans

## Contents


Preface

Comparative endocrinology is an important component of animal physiology. Hormones influence animal physiology and behavior. Knowledge gained from studies in the hormonal biology of animals can be applied to the health management of diverse systems including production animals, wildlife species, and humans.

The contributing authors come from diverse science disciplines; herein they have applied comparative endocrinology approaches to the study of fundamental and applied areas such as aquaculture, livestock production, and human health management. The texts incorporated in the book are an attempt to provide a range of comparative endocrinology studies from crustaceans, rodents, ruminants, to humans. Each chapter author has provided robust datasets to support the research discussion and outcomes. The book will be useful to students of biological and biomedical

sciences and to comparative physiologists, researchers, and clinicians.

resulting in the present shape of the book.

that allowed this book's chapters to be edited well on time.

The editor is thankful to every individual who helped in the preparation of this book, and he is indebted to the chapter contributors for accepting helpful criticism,

Last but not least, the editor thanks Ms. Manuela Gabric and Ms. Dajana Pemac, publishing process managers at IntechOpen, for sending information and guidelines

**Dr. Edward Narayan**

New South Wales, Australia

School of Science and Health, Western Sydney University,
