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Author : Arvind N. Shukla
Publisher : Discovery Publishing House
Page : 322 pages
File Size : 47,6 Mb
Release : 2009
Category : Fishes
ISBN : 8183563910
Author : Philippa Melamed,Nancy Sherwood
Publisher : World Scientific
Page : 308 pages
File Size : 45,5 Mb
Release : 2005
Category : Science
ISBN : 9789812388360
Research on the molecular aspects of fish reproduction has progressed swiftly over the past few years. With the availability of wide-ranging molecular tools, fish researchers have elucidated many of the molecular mechanisms regulating reproduction which operate in the brain, pituitary and gonad. This research has revealed novel variants of reproductive hormones and their receptors, and has shed new light on the mechanisms through which many of these genes can be activated. Several of the findings, which are reported in this book, have formed the basis for subsequent mammalian research and will also constitute the platform on which new approaches to reproductive management in aquaculture can be developed.
Author : David O. Norris,Richard E. Jones
Publisher : Springer Science & Business Media
Page : 627 pages
File Size : 45,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461318699
Comparative endocrinology is one of the most rapidly developing subdis ciplines within the field of endocrinology, and it is having a significant impact on research at the molecular, cellular, organisma1 and environmental levels. Much of the current ferment in endocrinology is in reproductive endocrinology. The purpose of this volume on hormones and reproduction in fishes, amphibians and reptiles is to summarize our present understandings and to identify important research problems to be addressed in the area of comparative reproductive endocrinology. It was inspired by the gathering at Copper Mountain, Colorado, of eminent endocrine scientists from around the world on the occasion of the Tenth International Symposium on Comparative Endocrinology in July, 1985. While preparing for that meeting, we decided that a special volume on reproductive endocrinology was needed to summarize what is known and to stimulate research in particular directions. Why do we emphasize fishes, amphibians and reptiles? First, knowledge about the reproductive endocrinology of these ectothermic vertebrates can provide a clearer picture of the evolution of reproductive hormones and their effects on target organs. This comparative approach can lead to new theories about the evolution of reproductive control mechanisms. Second, studies concerning the reproductive endocrinology of "lower" vertebrates can result in development of "model systems" for application to studies of birds and mammals. Indeed, information about the patterns of reproductive control in ectothermic vertebrates can tell us which are evolutionarily stable and which are labile.
Author : David Norris,Kristin Lopez
Publisher : Academic Press
Page : 297 pages
File Size : 40,6 Mb
Release : 2011-05-04
Category : Technology & Engineering
ISBN : 9780080962290
This series of volumes represents a comprehensive and integrated treatment of reproduction in vertebrates from fishes of all sorts through mammals. It is designed to provide a readable, coordinated description of reproductive basics in each group of vertebrates as well as an introduction to the latest trends in reproductive research and our understanding of reproductive events. Whereas each chapter and each volume is intended to stand alone as a review of that topic or vertebrate group, respectively, the volumes are prepared so as to provide a thorough topical treatment across the vertebrates. Terminology has been standardized across the volumes to reduce confusion where multiple names exist in the literature, and a comprehensive glossary of these terms and their alternative names is provided. A complete, essential and up to date reference for research scientists working on vertebrate hormones and reproduction - and on animlals as models in human reproductive research Covers the endocrinology, neuroendocrinology, physiology, behaviour and anatomy of vertebrate reproduction Structured coverage of the major themes for all five vertebrate groups allows a consistent treatment for all Special chapters elaborate on features specific to individual vertebrate groups and to comparative aspects, similarities and differences between them
Author : Peter Tytler,Peter Calow
Publisher : Springer Science & Business Media
Page : 337 pages
File Size : 47,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401179188
It is almost thirty years since Professor G. G. Winberg established the basis for experimental studies in fish energetics with the publication of his monograph, Rate of Metabolism and Food Requirements of Fishes. His ultimate aim was to develop a scientific approach to fish culture and management, and the immense volume of literature generated in the ensuing years has been mainly in response to the demand for information from a rapidly expanding, world-wide aquaculture industry and to the shortcomings of contemporary practices in fisheries management. The purpose of this book is not to review this literature compre hensively, but, assuming an informed readership, to focus attention on topics in which new knowledge and theory are beginning to be applied in practice. Most emphasis has been placed on food; feeding; production (growth and reproduction) and energy budgeting, as these have most influence on the development of fish culture. Some chapters offer practical advice for the selection of methods, and warn of pitfalls in previous approaches. In others the influence of new theory on the interpretation of studies in fish energetics is discussed in the context of resource allocation and adaptation. We hope that the scope of material presented here will have sufficient interest and value to help significantly to fulfil Winberg's original objectives.
Author : Manfred Reinecke,Giacomo Zaccone,B. G. Kapoor
Publisher : Unknown
Page : 468 pages
File Size : 43,7 Mb
Release : 2006
Category : Fishes
ISBN : UCSD:31822034311183
Provides an overview of major advances in numerous research areas of fish endocrinology. This book is useful to scientists involved in basic fish research, comparative endocrinology, fisheries and aquaculture as well as for students of fish biology.
Author : Philippa Melamed
Publisher : Unknown
Page : 0 pages
File Size : 55,7 Mb
Release : 2004
Category : Electronic
ISBN : 978238836X
Author : T. J. Pandian
Publisher : CRC Press
Page : 318 pages
File Size : 40,8 Mb
Release : 2013-05-07
Category : Nature
ISBN : 9781466575615
Of all vertebrates, fish exhibit unparalleled diversity of sexual plasticity and flexibility, ranging from gonochorism to unisexualism, and exceptional patterns of functional hermaphroditism. Fish farming and monosex aquaculture have led to reproductive dysfunction with males producing less milt, and females failing to ovulate and spawn. This book
Author : B. N. Yadav
Publisher : Daya Books
Page : 180 pages
File Size : 48,9 Mb
Release : 1995
Category : Electronic
ISBN : 817035143X
The book Fish Endocrinology is an excellent book comprising eleven chapters which deal with the structural details and physiology of the various endocrine glands in Cyclostomes, Elasmobranchs and Teleosts. It is one of the best expositions for teachers and research workers interested in fish endocrinology all over the world. Latest references concerned, have been cited in this book and contributions of Indian workers have also been frequently incorporated. The illustrations include some beautiful microphotographs also. In the last chapter, Prospects for Future Research has been discussed which is of great value for the researchers. This book will definitely be an asset for the libraries. Contents: Chapter 1: The Adrenal Gland, Chapter 2: The Pituitary Gland, Chapter 3: The Thyroid Gland, Chapter 4: The Endocrine Pancres and Gastro-intestinal Hormones, Chapter 5: Gonads and their Hormones, Chapter 6: The Pineal Organ, Urophysis, Ultimobranchial Organ and Corpuscles of Stannius, Chapter 7: The Pheromones, Chapter 8: Hormones, Migration and Osmoregulation, Chapter 9: Hormones and Aquaculture, Chapter 10: Hormones and Skin Pigmentation, Chapter 11: Prospects for Future Research.
Author : Jitendra Kumar Sundaray,Mohd Ashraf Rather,Sujit Kumar,Deepak Agarwal
Publisher : Springer Nature
Page : 367 pages
File Size : 40,9 Mb
Release : 2021-01-27
Category : Science
ISBN : 9789811583698
This book is dedicated to present different aspects of reproductive physiology and molecular endocrinology of commercially important as well as potential aquaculture fish species. The existing aquaculture generation is looking for species diversification for efficient utilization of available diverse water resources. The knowledge of reproductive physiology of fish will help in development of breeding strategy for use in commercial aquaculture. Reproductive system is highly coordinated and governed by means of complex network of nervous, endocrine system and environmental factor as well. This book emphasize on different key aspects of reproductive endocrine system such as basic gonadal biology in the events of climate vulnerability, sex determination, sex reversal, stimulatory hormones, inhibitory hormones and receptors, environmental and chemical factor guiding reproduction, puberty, neuroendocrine regulation of reproduction etc. This book further describes how reproduction is not just indispensable for the existence or survival of an individual, but it is important for the survival of species. Chapters also address the concerns of anthropogenic activities on fish and the aquatic environment lead main trouble on physiological and reproductive processes of aquatic animals. This book offers an attractive compilation of highly relevant aspects of current and future of aquaculture, especially in view of the growing awareness of aquaculture, to food scientists working on commercial fish, animal biologists, fish geneticists etc. This book is very timely, and relevant to the sustainable development goals. The contents would be relevant to policy makers, working towards blue revolution and blue economy.
Author : Sekar Megarajan,Prerna Pandey
Publisher : Delve Publishing
Page : 0 pages
File Size : 50,8 Mb
Release : 2017-11
Category : Fishes
ISBN : 1773611992
Growth rate is a primary trait of interest in most finfish selection programs and is intrinsically linked to productivity and profitability of finfish aquaculture industry in several parts of the world. Search for candidate genes influencing growth has been a major focus of research in aquaculture and several such genes have been isolated from the fish genome and their effects are quantified. Growth hormone genes have been studied extensively in many species because of its potential in enhancing the growth rate of fishes in aquaculture. The identified growth hormone gene in most of the fishes is roughly 1.5 kb long, with the protein coding region divided in to four to five blocks (exons) representing less than one third length of the genomic region. Growth hormone (GH) is a single chain polypeptide that plays a major role in the growth development of vertebrates. It is the main regulator of postnatal somatic growth and stimulates anabolic processes such as cell division, skeletal growth and protein synthesis. In addition, growth hormone is also involved in the regulation of fat oxidation, inhibition of glucose transport to peripheral tissues and regulation of ribosome translational activity, which in turn influences protein synthesis. Presently, the importance of GH as a candidate gene for studies of genetic variation in connection with growth traits and potential natural marker for studies of evolutionary relationship of various fishes has been demonstrated. Its potential application in the growth traits and fish evolution studies has been an active area of research. Natural growth rates of organisms have evolved to provide maximum fitness in wild environments and therefore, enhancement of natural growth rate of fish in aquaculture has been extensively explored, with gains arising from improvements in husbandry, nutrition, and genetical selection. Growth enhancement can be advantageous for aquaculture by shortening production time, and enhancing feed conversion efficiency. Therefore, endocrine approaches in controlling growth have been extensively explored. Several studies have demonstrated the efficacy of mammalian GH in the acceleration of growth of various species. In fish, GH administration by various modes of delivery like injection, and oral administration of hormones has been successfully studied. These studies have suggested that the exogenous growth hormone enhances fish growth by stimulating appetite and improving feed conversion. It is clearly understood that growth hormone plays major role in aquaculture industry by increasing the growth. Therefore, knowing the different aspects of growth hormone is very much essential for the researchers aim for growth enhancement in fishes.
Author : Anonim
Publisher : Academic Press
Page : 518 pages
File Size : 54,7 Mb
Release : 1994-12-23
Category : Science
ISBN : 008058537X
Hormones have a manifold impact upon growth and metabolism. This book focuses upon the molecular biology of fish hormones and their regulation. Chapters dealing with gonadotropin, corticotropin, vasotocin, isotocin, somatolactin, and other hormones are written by an international team of fish physiologists and endocrinologists. In addition, there are chapters that survey a growing literature on the ways hormones are regulated both in terms of their actions and in terms of the gene transcription that leads to their formation. The first two sections of the book covers brain and pituitary hormones and the latter two sections are devoted to other hormones and their regulation. As more and more endocrinologists and physiologists seek to use hormones that are inexpensive, provide for more facile experimental replication, and are less subject to cumbersome regulation, they will turn to the sorts of fish models reviewed in this book.
Author : Manfred Reinecke,Giacomo Zaccone,B. G. Kapoor
Publisher : CRC Press
Page : 401 pages
File Size : 44,6 Mb
Release : 2020-03-05
Category : Science
ISBN : 9780429526589
During the past two decades, fish endocrinology has witnessed exciting developments due to our increased knowledge at all levels of biological organizations, including molecular biology, cell biology, physiology and behavior. New insights into development, neurobiology, immunology and molecular genetics closely correlated with classical aspects of endocrinology and represent important contributions to our knowledge on regulatory processes of vertebrates, including fish. The purpose of this book is to overview major advances in numerous research areas of fish endocrinology. Most of the chapters not only review and discuss the state-of-the-art in the respective field, but also show perspectives of future research. The book will be of interest to scientists involved in basic fish research, comparative endocrinology, fisheries and aquaculture as well as for students of fish biology.
Author : A. J. Matty
Publisher : Timber Press (OR)
Page : 288 pages
File Size : 50,6 Mb
Release : 1985
Category : Endocrinology
ISBN : CORNELL:31924002800716
Author : Anonim
Publisher : Academic Press
Page : 463 pages
File Size : 40,9 Mb
Release : 1969
Category : Science
ISBN : 9780080585222
The Endocrine System
