Download or read book Antler Development in Cervidae written by Robert D. Brown and published by . This book was released on 1983 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes papers on the role of physiology, endocrinology, histology, genetics, photoperiod and nutrition in antler growth and development and on the velvet antler industry.

Download or read book Wildlife Review written by and published by . This book was released on 1986 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quetico written by Jon Nelson and published by Dundurn. This book was released on 2009-05-18 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quetico Park in northwestern Ontario celebrates its 100th anniversary in 2009. Long-recognized as a gem among parks, Quetico contains some of the largest stands of old-growth red and white pine in Canada , as well as a diversity of fascinating lichens, carnivorous plants in specialized habitats. The author presents an insightful look into Quetico's natural history as he examines the adapations that have allowed moose, white-tailed deer, wolves and other mammals to survive. The human history of the park is also explored, beginning with the Objiwa living there when the area was designated as a park, followed by accounts of trappers, loggers, miners, park rangers, and poachers. Beginning with the retreat of the glaciers, the author combines his thorough research into Quetico's long and varied history with the threads of his own extensive involvement with the park. The result is a splendid tribute to a very special place.

Download or read book Deer Antlers written by Richard J. Goss and published by Academic Press. This book was released on 2012-12-02 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a book about one of nature's most remarkable accomplishments. When deer grow antlers they are actually regenerating anatomically complex appendages - something that no other mammal can do. The rate at which antler elongate makes them the fastest growing structures in the animal kingdom. Profoundly affected by male hormones, these secondary sex characters grow into massive tumors if the deer possessing them is castrated. These and other unique characteristics have made antlers the focus of extensive scientific research that addresses some provocative questions: From what tissues do antlers develop? By what morphogenetic mechanisms are they regenerated every year? What social functions prompted their initial evolution? How are they influenced by hormones, and by the seasonal daylength fluctuations that regulate their annual replacement cycles? These and many other questions are considered in this comprehensive account of antlerology.Students of development, evolution, and behavior will find much to appreciate in this volume, as will ecologists, wildlife biologists, and zookeepers. It is a rich source of information for endocrinologists and physiologists interested in the relationship of antlers to the reproductive cycle. The orthopedists will find the study of antlers a valuable model of skeletal growth and bone disease, and the purported medicinal properties of velvet antlers will be a subject of interest to the pharmacologist.Deer Antlers: Regeneration, Function, and Evolution is as scientifically accurate as it is readable. It does not answer all questions about these unique appendages, but it is certain to arouse curiosity about the many unsolved problems of how antlers grow, die, and are shed in the course of a single year.

Download or read book Caesar Kleberg Research Institute written by Caesar Kleberg Research Program in Wildlife Ecology and published by . This book was released on 1982 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Current Therapy in Large Animal Theriogenology written by Robert S. Youngquist and published by Elsevier Health Sciences. This book was released on 2006-10-10 with total page 1087 pages. Available in PDF, EPUB and Kindle. Book excerpt: An essential resource for both students and practitioners, this comprehensive text provides practical, up-to-date information about normal reproduction and reproductive disorders in horses, cattle, small ruminants, swine, llamas, and other livestock. Featuring contributions from experts in the field, each section is devoted to a different large animal species and begins with a review of the clinically relevant aspects of the reproductive anatomy and physiology of both males and females. Key topics include the evaluation of breeding soundness, pregnancy diagnosis, diagnosis and treatment of infertility, abortion, obstetrics, surgery of the reproductive tract, care of neonates, and the latest reproductive technology. - Includes coverage of all large animal species. - All sections provide a review of clinically pertinent reproductive physiology and anatomy of males and females of each species. - Complete coverage of the most current reproductive technology, including embryo transfer, estrous synchronization, and artificial insemination. - A new section on alternative farming that addresses reproduction in bison, elk, and deer. - New to the equine section: stallion management, infertility, and breeding soundness evaluation. - New to the bovine section: estrous cycle synchronization, reproductive biotechnology, ultrasonographic determination of fetal gender, heifer development, and diagnosis of abortion. - New to the porcine section: artificial insemination, boar/stud management, diseases of postpartum period, and infectious disease control. - New to the llama section: infectious disease and nutrition.

Download or read book The American Naturalist written by and published by . This book was released on 1991 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Wildlifer written by and published by . This book was released on 1973 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book written by and published by . This book was released on 1985 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Progress Report written by Texas A & M University. College of Agriculture and published by . This book was released on 1984-06 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index of Conference Proceedings Received written by British Library. Lending Division and published by . This book was released on 1984-07 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book written by 国立国会図書館 (Japan) and published by . This book was released on 1900 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Horns Pronghorns and Antlers written by George A. Bubenik and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first drawings left on walls of ancient caves, human beings have been fascinated with that unique phenomenon of the animal kingdom, the presence of horns and antlers. From the mythical ''unicorn'' exercising the power over life and death to the perceived aphrodisiacal and other medical properties of rhinoceros horns and growing antlers, these conspicuous protuberances have had a significant place in the history of mankind. Part of that ancient interest in antlers and horns was due to their value as sym bols of masculinity; this interest persists today in trophy hunting, an honorable tradition carried on for centuries in many countries of the world. This book, which deals with evolution, morphology, physiology, and behavior, has not been devised as a comprehensive review of the subject of horns, prong horns, and antlers; rather, it is a series of chapters stimulating thoughts, discus sions, and initiation of new studies. As editors, we did not interfere with the content of articles nor with the opin ions and interpretations of our contributors, and we left them to decide whether to accept the suggestions of our reviewers. Despite the fact that various aspects of cranial appendages have been studied since the end of the eighteenth century, many controversial views still exist, as witnessed in various chapters of this book.

Download or read book Proceedings Second International Moose Symposium written by Görgen Göransson and published by . This book was released on 1987 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agrindex written by and published by . This book was released on 1995 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sexual Selection written by Malte Andersson and published by Princeton University Press. This book was released on 2019-12-31 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bright colors, enlarged fins, feather plumes, song, horns, antlers, and tusks are often highly sex dimorphic. Why have males in many animals evolved more conspicuous ornaments, signals, and weapons than females? How can such traits evolve although they may reduce male survival? Such questions prompted Darwin's perhaps most scientifically controversial idea--the theory of sexual selection. It still challenges researchers today as they try to understand how competition for mates can favor the variety of sex-dimorphic traits. Reviewing theoretical and empirical work in this very active field, Malte Andersson, a leading contributor himself, provides a major up-to-date synthesis of sexual selection. The author describes the theory and its recent development; examines models, methods, and empirical tests; and identifies many unsolved problems. Among the topics discussed are the selection and evolution of mating preferences; relations between sexual selection and speciation; constraints on sexual selection; and sex differences in signals, body size, and weapons. The rapidly growing study of sexual selection in plants is also reviewed. This volume will interest students, teachers, and researchers in behavioral ecology and evolutionary biology.

Download or read book Nutrient Requirements of Small Ruminants written by National Research Council (U.S.). Committee on Nutrient Requirements of Small Ruminants and published by 中国法制出版社. This book was released on 2007-01-05 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proper formulation of diets for small ruminants depends on adequate knowledge of their nutrient requirements.