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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Animal reproduction

Heat Stress and Animal Productivity (Hardcover, 2013 ed.): Anjali Aggarwal, Ramesh Upadhyay Heat Stress and Animal Productivity (Hardcover, 2013 ed.)
Anjali Aggarwal, Ramesh Upadhyay
R4,219 R3,625 Discovery Miles 36 250 Save R594 (14%) Ships in 12 - 19 working days

Dr. Anjali Aggarwal is working as a Senior Scientist at National Dairy Research Institute, Karnal (India). She holds a PhD degree in Animal Physiology and is involved in research and teaching at post-graduate level. Her area of research work is stress and environmental physiology. She has more than 50 publications, two technical bulletins, four manuals and many book chapters to her credit. She has successfully guided many post-graduate and PhD students. Her major research accomplishments are on microclimatic modification for alleviation of heat and cold stress, mist and fan cooling systems for cows and buffaloes, and use of wallowing tank in buffaloes. Her work involves the use of technology of supplementing micronutrients during dry period and early lactation to crossbred and indigenous cows for alleviating metabolic and oxidative stress and improved health and productivity. Studies are also done in her lab on partitioning of heat loss from skin and pulmonary system of cattle and buffaloes as a result of exercise or exposure to heat stress. Dr. R.C. Upadhyay is working as Head, Dairy Cattle Physiology Division at National Dairy Research Institute, Karnal (India). He graduated in Veterinary Sciences and obtained his PhD degree in Animal Physiology. His area of recent research is climate change, stress, and environmental physiology. His major research accomplishment is on climate change impact assessment of milk production and growth in livestock. His work also involves studying methane conversion and emission factors for Indian livestock and use of IPCC methodology of methane inventory of Indian livestock. Heat shock protein-70 expression studies in cattle and buffaloes are also done in his lab. Draught animal power evaluation, fatigue assessment, work-rest cycle and work limiting factors form the highlights of his work. Studies on partitioning of heat loss from skin and pulmonary system of cattle and buffaloes and electrocardiographic studies in cattle, buffalo, sheep and goat are also undertaken in his lab. He has more than 75 research papers, four books and several book chapters to his credit. Technologies developed and research done by him include methodology of methane measurement: open and closed circuit for cattle and buffaloes; inventory of methane emission from livestock using IPCC methodology; livestock stress index: thermal stress measurement based on physiological functions; and draught power evaluation system and large animal treadmill system. He received training in Radio-nuclides in medicine at Australian School of Nuclear Technology, Lucas heights, NSW, Australia in 1985 and Use of radioisotopes in cardiovascular investigations at CSIRO, Prospect, NSW, Australia, during 1985-86. He has guided several post-graduate and PhD students. He is recipient of Hari Om Ashram Award-1990 (ICAR) for outstanding research in animal sciences.

Sperm Biology - An Evolutionary Perspective (Hardcover): Scott S. Pitnick, Dave J. Hosken, Tim R. Birkhead Sperm Biology - An Evolutionary Perspective (Hardcover)
Scott S. Pitnick, Dave J. Hosken, Tim R. Birkhead
R1,860 Discovery Miles 18 600 Ships in 12 - 19 working days

This book represents the first analysis of the evolutionary significance of sperm phenotypes and derived sperm traits and the possible selection pressures responsible for sperm-egg coevolution.
An understanding of sperm evolution is fast developing and promises to shed light on many topics from basic reproductive biology to the evolutionary process itself as well as the sperm proteome, the sperm genome and the quantitative genetics of sperm. The Editors have identified 15 topics of current interest and biological significance to cover all aspects of this bizarre, fascinating and important subject. It comprises the most comprehensive and up to date review of the evolution of sperm, and pointers for future research, written by experts in both sperm biology and evolutionary biology. The combination of evolution and sperm is a potent mix and this is the definitive account.
* The first review survey of this emerging field
* Written by experts from a broad array of disciplines from the physiological and biomedical to the ecological and evolutionary
* Sheds light on the intricacies of reproduction and the coevolution of sperm, egg and reproductive behaviour

Courtship - An Ethological Study (Paperback): Margaret Bastock Courtship - An Ethological Study (Paperback)
Margaret Bastock
R1,494 Discovery Miles 14 940 Ships in 12 - 19 working days

This concise but thorough study of courtship behavior in fish, birds, and arthropods is the first rigorous examination of the evolutionary origins and mechanisms of courtship and its contribution to biological success. Demonstrating the fruitfulness of an empirically based, inductive approach to understanding courtship, the book also explains clearly how principles of modern evolutionary theory can be successfully employed in studying behavior.

The author describes many observations and experiments that have not previously appeared outside specialized journals and brings an abundance of simple yet accurate examples of animal behavior to bear on explanations of ethological concepts and evolutionary theory. No attempt is made to skim over the gaps of knowledge apparent in the study of behavior evolution; rather, the author discusses the limitations and difficulties of different approaches, critically reviews the deductions that can be and have been made from them, and tries to present enough evidence on controversial points for the reader himself to judge the validity of specific arguments.

Indicating how ethological method, firmly based on biological principles, can intensively investigate and illuminate a single area of animal behavior, the book will be valuable to students and professionals in zoology, animal behavior, and experimental psychology.

"Margaret Bastock" studied zoology at Oxford from 1946 to 1949 and became a zoology tutor at and, later, a Fellow of St. Anne's College, Oxford. She worked for her Ph.D. under Professor N. Tinbergen and through him became acquainted with the work of the chief ethologists in Europe and the United States. Her original work has concentrated on the inheritance and organization of behavior in insects, and her principal interests include all aspects of animal behavior, genetics, and evolution.

Reproductive Biology and Phylogeny of Gymnophiona: Caecilians (Hardcover, illustrated edition): Barrie G.M. Jamieson Reproductive Biology and Phylogeny of Gymnophiona: Caecilians (Hardcover, illustrated edition)
Barrie G.M. Jamieson
R5,857 Discovery Miles 58 570 Ships in 12 - 19 working days

One of the little known species in the danger of extinction, gymophionan amphibians, are also known as caecilians or apoda. Gymnophiona contains 154 species belonging to 34 genera and 6 families. For many years, studies on the Gymnophiona were disparate and still only a few species have been deeply studied. Fortunately, in recent years, some new works have been published on their systematics, using both the classical methods as well as immunology and molecular biology. New data have also been obtained on the biology, life history, reproductive biology, endocrinology and embryonic development of several species. These fascinating aspects along with other important ones on gymnophionan studies are ably reviewed in this book.

Mouse Genetics - Concepts and Applications (Hardcover, New): Lee M. Silver Mouse Genetics - Concepts and Applications (Hardcover, New)
Lee M. Silver
R3,491 Discovery Miles 34 910 Ships in 12 - 19 working days

Mouse Genetics offers for the first time in a single comprehensive volume a practical guide to mouse breeding and genetics. Nearly all human genes are present in the mouse genome, making it an ideal organism for genetic analyses of both normal and abnormal aspects of human biology. Written as a convenient reference, this book provides a complete description of the laboratory mouse, the tools used in analysis, and procedures for carrying out genetic studies, along with background material and statistical information for use in ongoing data analysis. It thus serves two purposes, first to provide students with an introduction to the mouse as a model system for genetic analysis, and to give practicing scientists a detailed guide for performing breeding studies and interepreting experimental results. All topics are developed completely, with full explanations of critical concepts in genetics and molecular biology. As investigators around the world are rediscovering both the heuristic and practical value of the mouse genome, the demand for a succinct introduction to the subject has never been greater. Mouse Genetics is intended to meet the needs of this wide audience.

Vertebrate Embryogenesis - Embryological, Cellular, and Genetic Methods (Hardcover, 2nd ed. 2019): Francisco J. Pelegri Vertebrate Embryogenesis - Embryological, Cellular, and Genetic Methods (Hardcover, 2nd ed. 2019)
Francisco J. Pelegri
R5,204 Discovery Miles 52 040 Ships in 10 - 15 working days

This detailed volume explores animal embryogenesis in a way that aims to foster cross-model work and ideas by presenting methods that can be applied across laboratories and species boundaries. Improved protocols with updated advances in key traditional model systems are included, such as in amphibians, chicken, mouse, and zebrafish, as well as chapters on leopard gecko and the flexible-shelled slider turtle. Within these traditional model systems, new developments are presented, such as protocols for the analysis of cellular membranes and intracellular signals, light-controlled manipulation of function, and the analysis of transcriptomic and proteomic data in the context of the embryo. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and fully updated, Vertebrate Embryogenesis: Embryological, Cellular, and Genetic Methods, Second Edition serves as an invaluable aid to scientists, educators, and the advanced general audience and will act as an inspiration to further our understanding and appreciation of animal development. Chapter 10, "Optogenetic Control of Subcellular Protein Location and Signalling in Vertebrate Embryos," is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

Mammalian Oocyte Regulation - Methods and Protocols (Hardcover, 2013 ed.): Hayden A. Homer Mammalian Oocyte Regulation - Methods and Protocols (Hardcover, 2013 ed.)
Hayden A. Homer
R4,041 R3,759 Discovery Miles 37 590 Save R282 (7%) Ships in 12 - 19 working days

Mammalian oocytes occupy a critical nexus in reproduction as they not only contribute half the genetic makeup of the embryo but also provide virtually all of the cytoplasmic building blocks required for sustaining embryogenesis. The journey that transforms a primordial germ cell into a mature oocyte (or egg) capable of fertilisation and embryonic development is of unrivalled complexity. The end-product of this remarkable developmental process is the "mature" egg, now replete with macromolecules and organelles, and poised to support embryonic development if fertilisation should occur. Given the importance of the oocyte for embryonic development, it is of no surprise that the oocyte holds centre stage in fertility clinics and greatly influences the outcome of assisted reproductive treatments (ARTs). Mammalian Oocyte Regulation: Methods and Protocols provides a highly diverse compendium of detailed methodologies - primarily focusing on the murine model but also including chapters on human oocytes - for enabling researchers to interrogate every aspect of mammalian oocyte development including recombination, meiotic maturation, oocyte substrate uptake, chromosomal segregation and fertilisation. Written in the highly successful Methods in Molecular Biology (TM) series format, chapters contain introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Mammalian Oocyte Regulation: Methods and Protocols serves as an ideal guide to novice oocyte researchers, experts who wish to add another dimension to their established portfolio, as well as the wider research community.

Gene Expression at the Beginning of Animal Development, Volume 12 (Hardcover, 1st ed): M. L. Depamphilis Gene Expression at the Beginning of Animal Development, Volume 12 (Hardcover, 1st ed)
M. L. Depamphilis
R2,750 Discovery Miles 27 500 Ships in 12 - 19 working days

The beginning of life may be a miracle to some, and a mystery to others, but it is certainly one of the most exciting and perhaps controversial fields of scientific investigation in the 21st century. Among the metazoa, life begins when an egg is fertilized by a sperm. The sperm provides a genetic blueprint from the father and perhaps some critical proteins. The egg provides a genetic blueprint from the mother together with a large reservoir of mRNAs and proteins that are required for DNA replication, cell division and the onset of zygotic gene expression. All of the thousands of genes in these two mature gametes are transcriptionally silent and remain so until fertilization.


This work focuses on three biological systems, providing the reader with a clear understanding of the current state of affairs, and the ability to identify common principles as well as critical differences that are responsible for beginning the process of animal development.

The essays presented will be of practical value to all those who are interested in improving fertilization "in vitro," in designing novel methods of contraception, in developing preimplantation genetic diagnosis for various diseases, in cloning animals by transplanting nuclei from adult cells to an enucleated egg, and in the application of embryonic stem cells to curing genetic diseases or replacing damaged tissues. But above all, this volume is offered to those who simply have an insatiable curiosity about life and its beginnings.

Fertilization (Paperback, 2 Rev Ed): Frank Longo Fertilization (Paperback, 2 Rev Ed)
Frank Longo
R2,389 Discovery Miles 23 890 Ships in 12 - 19 working days

This edition provides the reader with an introduction to this subject. During the past five years there has been a virtual explosion of information on the different phases of fertilization.This book should be of interest to advanced undergraduates and graduate students in developmental biology, zoology and cell biology; researchers entering the field.

Propagation Of The Houbara Bustard (Hardcover): Saint Propagation Of The Houbara Bustard (Hardcover)
Saint
R7,924 Discovery Miles 79 240 Ships in 12 - 19 working days

Hunting with falcons for houbara bustards was an integral part of traditional life in the desert. Over the last few decades, this magnificent bird - so well adapted to the desert environment - has become an endangered species, due both to continued hunting and to the degradation of its habitat by domestic livestock. This book highlights the achievements of the National Wildlife Research Center of Saudi Arabia in securing the survival of the species through captive breeding, with the aim of reintroducing the houbara to the wild. The breeding programme has proved to be the greatest source of information yet available on the bird, yielding important data not obtainable from wild houbaras. Propagation of the Houbara Bustard is a practical 'how-to' manual for breeding the bird in captivity. It also presents and summarises the background data on houbara diet, behaviour, physiology, reproductive biology and veterinary care that have enabled the breeding programme to succeed in the short span of eight years. It will be of interest not only to breeders of houbara and other bustard species, but to all those who are studying or managing wild populations.

Fetal Development - A Psychobiological Perspective (Hardcover, Revised): Jean-Pierre Lecanuet, William P. Fifer, Norman A.... Fetal Development - A Psychobiological Perspective (Hardcover, Revised)
Jean-Pierre Lecanuet, William P. Fifer, Norman A. Krasnegor, William P. Smotherman
R4,521 Discovery Miles 45 210 Ships in 12 - 19 working days

Based on the presentations given by well-known specialists at a recent multidisciplinary conference of developmental psychobiologists, obstetricians, and physiologists, this book is the first exhaustive attempt to synthesize the present scientific knowledge on fetal behavior. Utilizing a psychobiological analytic approach, it provides the reader with an overview of the perspectives, hypotheses, and experimental results from a group of basic scientists and clinicians who conduct research to elucidate the role of fetal behavior in development. Experimental and clinical as well as human and animal data are explored via comparative developmental analysis. The ontogeny of fetal spontaneous activity -- via the maturation of "behavioral states" -- and of fetal responsiveness to sensory stimulation is studied in detail. Results are provided from studies of embryonic/fetal and newborn behavior in chicks, rats, sheep, primates, and humans. Knowledge of fetal behavior is crucial to the obstetrician, neonatologist, developmental psychologist, and even the future parents, in order to follow and assess the gradual development of spontaneous responsive movements of the fetus. While assessing this important information, this text also examines the neuro-behavioral events taking place during the fetal period as an aid to understanding normal and pathological life span development.

Biorational Control of Arthropod Pests - Application and Resistance Management (Hardcover, 2009 ed.): Isaac Ishaaya, A. Rami... Biorational Control of Arthropod Pests - Application and Resistance Management (Hardcover, 2009 ed.)
Isaac Ishaaya, A. Rami Horowitz
R5,820 Discovery Miles 58 200 Ships in 10 - 15 working days

For nearly 50 years, pest control was mostly based on broad-spectrum conv- tional insecticides such as organochlorines, organophosphates, carbamates and pyrethroids. However, the severe adverse effects of pesticides on the environment, problems of resistance reaching crisis proportions and public protests led to stricter regulations and legislation aimed at reducing their use. Ways to reduce the use of synthetic pesticides in plant protection and to use more alternative and novel me- ods for pest control or biorational control are the challenges of pest control for the twenty-first century. The term biorational (biological + rational) pesticides can be defined as the use of specific and selective chemicals, often with a unique modes of action, that are compatible with natural enemies and the environment, with minimal effect on n- target organisms. Biorational control is based on a diversity of chemical, biological and physical approaches for controlling insect pests which results in minimum risk to man and the environment.

Reproductive Biology of Invertebrates - Progress in Male Gamete Ultrastructure & Phylogeny V9 PtA (Hardcover, Volume 9, Part... Reproductive Biology of Invertebrates - Progress in Male Gamete Ultrastructure & Phylogeny V9 PtA (Hardcover, Volume 9, Part A)
K.G. Adiyodi
R9,782 Discovery Miles 97 820 Ships in 12 - 19 working days

About 95 per cent of all known animal species are invertebrates. A knowledge of their sexual, reproductive, and development biology is essential for the effective management of species that are economically useful to man or are harmful to him, his crops, and livestock. This treatise is the first to cover all aspects of reproduction and development of the entire spectrum of invertebrates -- terrestrial, marine, freshwater, brackish-water, free-living, and parasitic. The chapters, by leading world experts in their fields, are up-to-date and informative, and suggest a number of problems for future research. "Progress in Male Gamete Ultrastructure and Phylogeny" (issued in parts A--C) is the ninth volume in the series.
Contents Preface to the Progress Series; Preface to Volume IX, Part A; Contributors; Porifera, N. Boury-Esnault and B.G.M. Jamieson; Cnidaria and Ctenophora, Peter L. Harrison and B.G.M. Jamieson; Platyhelminthes, Nikki A. Watson; Nemertea, Ake Franzen and Bjorn A. Afzelius; Rotifera, Giulio Melone and Marco Ferraguti; Gastrotricha, Maria Balsamo, Elena Fregni and Marco Ferraguti, Kinorhyncha, Andrey V. Adrianov and Vladimir V. Malakhov; Nematomorpha, Roberto Valvassori, Magda de Eguileor, Annalisa Grimaldi and Giulio Lanzavecchia; Acanthocephala, Marcella Carcupino and Bahram S. Dezfuli; Subject Index; Species Index.

Reproduction in Domesticated Animals - World Animal Science Series (Hardcover): G.J. King Reproduction in Domesticated Animals - World Animal Science Series (Hardcover)
G.J. King
R8,323 Discovery Miles 83 230 Ships in 12 - 19 working days

Most consumable products of animal origin, such as eggs and milk, are obtained through exploitation of the reproductive processes of livestock, making efficiency extremely important in intensive production units. Critical evaluation of each technological innovation in this field is necessary before widespread introduction, and this requires an extensive knowledge of reproductive biology.
This volume presents comprehensive, current discussions of the individual aspects comprising the complete reproductive process in domesticated animals, covering various technological procedures for regulation and manipulation of particular events. It provides extensive coverage of reproductive anatomy and includes avian reproduction, supplying original and often innovative figures. This book will be of great value to agriculturalists and veterinarians as well as to food and environmental scientists.

Reproductive Biology - The Natural History of the Crustacea, Volume 6 (Hardcover): Rickey Cothran, Martin Thiel Reproductive Biology - The Natural History of the Crustacea, Volume 6 (Hardcover)
Rickey Cothran, Martin Thiel
R4,613 Discovery Miles 46 130 Ships in 12 - 19 working days

This is the sixth volume of a ten-volume series on The Natural History of the Crustacea. The volume synthesizes in nineteen chapters our current understanding of diverse topics in crustacean reproductive biology. In the first part of this book, the chapters address allocation strategies to reproduction, gamete production, brooding behavior, and other components of parental care in crustaceans. The second part of the volume centers on sexual systems in crustaceans. The third section of the volume covers crustacean mating systems and sexual selection. Reproductive Biology ends with three chapters covering diverse topics including reproductive rhythms, crustacean personality research, and record breaking crustaceans with respect to reproductive characters.

Reproduction and Development in Crustacea (Hardcover): T. J Pandian Reproduction and Development in Crustacea (Hardcover)
T. J Pandian
R5,543 Discovery Miles 55 430 Ships in 12 - 19 working days

Dating back to the early Cambrian period, crustaceans had ample time to undertake endless experimentation with form and function. Today, no other group of plants or animals on the planet exhibit the range of morphological diversity seen among extant Crustacea. With more than 52,000 species, they are placed fourth in terms of overall species diversity. This book comprehensively elucidates the reproduction and development of all the taxonomic groups of Crustacea and bridges the gap between conventional zoologists and molecular biologists. Reproductive modes from the point of embryonic stem cells and primordial germ cells is discussed with a special section on cysts.

Manual of Animal Andrology (Paperback): Peter J. Chenoweth, Steven P. Lorton Manual of Animal Andrology (Paperback)
Peter J. Chenoweth, Steven P. Lorton; Contributions by Roslyn Bathgate, Robert V. Knox, Paul R. Loomis, …
R1,344 Discovery Miles 13 440 Ships in 12 - 19 working days

A succinct reference for those assessing and managing the reproductive functionality of male animals, this practical manual contains both generic and species-specific information suitable for widespread worldwide application. It covers all relevant aspects such as handling and restraint, physical examination, reproductive examination, important reproductive diseases, biosecurity, semen collection and its assessment, mating behaviour, and the fundamentals of semen handling and preservation for artificial breeding. A simple, concise 'go-to' for the useful techniques and procedures of animal andrology, this book: - Covers a wide range of species, including cattle, sheep, goats, pigs, horses, water buffalo, camelids and dogs - Provides normal values and ranges for important male reproductive traits, as well as guidelines for breeding soundness evaluations - Includes extra supplementary illustrations, protocols and resources through accompanying website to enable further learning. With information presented in a manner that will remain useful for years to come, Manual of Animal Andrology is an essential resource for veterinarians, theriogenologists, animal breeders, and students of veterinary and animal sciences.

Quantitative Genetics with Special Reference to Plant and Animal Breeding (Hardcover, 1st ed): Comstock Quantitative Genetics with Special Reference to Plant and Animal Breeding (Hardcover, 1st ed)
Comstock
R5,297 Discovery Miles 52 970 Ships in 10 - 15 working days

Quantitative modeling of Mendelian genetics Quantitative Genetics with Special Reference to Plant and Animal Breeding provides authoritative guidance on improving genetic material in breeding programs through the application of Mendelian genetics. Beginning with a brief background on genetic modeling and breeding programs, the book compares breeding procedures and selection approaches while offering expert guidance on mathematical and Mendelian representation of various schema. Highly detailed and practically-focused with clear guidance on methods and calculations, this guide provides invaluable reference for the design of breeding programs in the laboratory or agricultural industry.

Reproductive Biology and Phylogeny of Fishes, Vol 8B: Part B: Sperm Competion Hormones - Sperm Competition * Hormones Sexual... Reproductive Biology and Phylogeny of Fishes, Vol 8B: Part B: Sperm Competion Hormones - Sperm Competition * Hormones Sexual Selection * Reproductive Modes Fertilization * Sex Determination Parental Care * Conservation Cryopreservation * Embryology * Genetics (Hardcover)
Barrie G.M. Jamieson
R3,926 Discovery Miles 39 260 Ships in 12 - 19 working days

The animals loosely termed fish constitute more than half of all known vertebrate species. There are approximately 27,000 described living species of bony fishes (Euteleostomi = Osteichthyes), about 70 species of hagfishes and some 34 species of lampreys. Approximately 970 species are chondrichthyans, the sharks and their relatives, which were the subject of volume 3 in this series. It is perhaps because fishes live in a buoyant medium, whether it be fresh or sea water, that they show a diversity in body shapes that is unparalleled by other vertebrates. There is also a unique diversity in the modes of reproduction, whether by external or internal fertilization, and this, with the morphology and fine structure of the reproductive system and its components, is the subject of Part A. Part B deals with complementary topics: testes, sperm, and sperm competition; endocrinology of reproduction; pheromones and reproduction; copulatory structures: taxonomic overview and the potential for sexual selection; sexual selection: signaling and courtship; adaptation and evolution of reproductive mode in copulating cottoid species; fertilization; sex determination; parental care; reproduction in relation to conservation and exploitation of marine fishes; Cryopreservation of Gametes; Embryogenesis and Development; and Molecular Genetics of Development.

Fish Reproduction (Hardcover, New): Maria J. Rocha Fish Reproduction (Hardcover, New)
Maria J. Rocha
R5,889 Discovery Miles 58 890 Ships in 12 - 19 working days

With the decline in world fish stocks, our knowledge of fish reproduction has become fundamental. Reproduction is an essential commitment to future generation. It is also a continuous development process throughout ontogeny, requiring energetic, ecological, physiological, anatomical, biochemical and endrocrinological adaptations. The first chapters highlight important issues affecting fish normal ways of reproductive development; details would focus on species living in opposite environments, such as tropical and polar fishes; far related, as teleosts and cartilaginous fishes; and finally, fish having different reproductive strategies. Thereafter, since many fishes live in detrimental environments, mainly induced by the continuous input of xenobiotic substances into waterways, the authors found it highly pertinent to include this topic. Herein, the authors fix their attention on the factors and mechanisms that may well affect reproductionrelated hormonal systems as also on known consequences for fish living i

Reproductive Biology and Phylogeny of Birds, Part B: Sexual Selection, Behavior, Conservation, Embryology and Genetics... Reproductive Biology and Phylogeny of Birds, Part B: Sexual Selection, Behavior, Conservation, Embryology and Genetics (Hardcover, New)
Barrie G.M. Jamieson
R5,875 Discovery Miles 58 750 Ships in 12 - 19 working days

The second part of volume 6 discusses sexual selection of ultraviolet and structural signals; melanins and carotenoids as feather colorants and signals; sexual selection and auditory signaling; odors and chemical signaling; sexual dimorphism; sexual selection, signal selection and the handicap principle; courtship and copulation; sexual conflict and its implications for fitness; intra- and extra-pair paternity; parental care (including cooperative breeding); brood parasitism in birds; applications of reproductive biology to bird conservation and population management; embryogenesis and development; molecular genetics of avian sex determination and gonadal development. Many new illustrations are provided throughout the volume.

Reproductive Biology and Phylogeny of Birds, Part A - Phylogeny, Morphology, Hormones and Fertilization (Hardcover, New):... Reproductive Biology and Phylogeny of Birds, Part A - Phylogeny, Morphology, Hormones and Fertilization (Hardcover, New)
Barrie G.M. Jamieson
R5,888 Discovery Miles 58 880 Ships in 12 - 19 working days

Aspects of reproduction covered in this volume include classification and phylogeny as revealed by molecular biology; anatomy of the male reproductive tract and organs; anatomy and evolution of copulatory structures; development and anatomy of the female reproductive tract; endocrinology of reproduction; ovarian dynamics and follicle development; spermatogenesis and testicular cycles; avian spermatozoa: structure and phylogeny; testis size, sperm size and sperm competition and lastly, fertilization.

Reproductive Biology and Phylogeny of Annelida (Hardcover, illustrated edition): Barrie G.M. Jamieson Reproductive Biology and Phylogeny of Annelida (Hardcover, illustrated edition)
Barrie G.M. Jamieson
R5,898 Discovery Miles 58 980 Ships in 12 - 19 working days

Annelida is a diverse group of animals, commonly referred to as segmented worms and currently comprising around 14000 described species. Found in most marine and freshwater areas, annelids have also successfully occupied many subterranean habitats. This volume documents annelid reproduction in the context of their phylogenetic relationships. It presents an introduction and overview to the current systematics of annelids and provides reviews to broad aspects of reproduction across Annelida. The chapters cover oogenesis, sperm, mating, early development, larval development and larval ecology. The book also covers some of the major clades (or purported clades) of annelids and addresses similar issues. The final chapter covers some of the more problematic annelid groups in terms of their phylogenetic placement.

Sustainability in Ruminant Livestock - Management and Marketing (Paperback, 1st ed. 2021): Pramod Kumar Rout, Basanta Kumara... Sustainability in Ruminant Livestock - Management and Marketing (Paperback, 1st ed. 2021)
Pramod Kumar Rout, Basanta Kumara Behera
R5,069 Discovery Miles 50 690 Ships in 10 - 15 working days

This book presents a concept for implementing a mass balance approach toward developing an effective eco-friendly, livestock farming system independent of external energy input. In this context it describes a modern, integrated farming system, and includes comprehensive technical information explaining the design and evaluation of manure management systems, and modeling and operational tools. It first discusses the mass balance operating process, highlighting the difference between imported and exported mass across the farm boundary. Estimating mass balance can provide critical information for (comprehensive) nutrient management planning and for managing the movement of nutrients and manure. It then explains the estimation of whole-farm P mass balance using a suitable model system. The subsequent chapters provide updated information on management aspects of livestock-farming and generation of multiple job opportunities, and also explore various aspects of livestock farming operational protocols like housing and management; nurture of rams, ewes and lambs, new born calves and heifers; care of buck, doe and kid- nutrition flushing; concept zero grazing-systems; disease control and management; integrated goat farming; and crop-livestock integration. Further, the book addresses crop-livestock integration; energy autonomy in cattle farming; value added biopharmaceuticals from cattle farming; CAPEX for cattle farming; concepts of cattle farming; detrimental effects of the industry; topographic and edaphic factors, and thermal stress on livestock growth and development; socioeconomic development; and water requirements for livestock. The book concludes with the most important issue in the field of agriculture and veterinary science: "Livestock Farming with Care," describing sustainable, eco-friendly livestock farming by highlighting issues like animal feed vs. human food; agricultural GDP vs livestock, and factors affecting the sustainability of livestock farming. Given its scope, this book is a valuable resource for researchers and students alike, and will also appeal to practitioners in the field of livestock.

Managing the Prenatal Environment to Enhance Livestock Productivity (Hardcover, 2010 ed.): Paul L. Greenwood, Alan W. Bell,... Managing the Prenatal Environment to Enhance Livestock Productivity (Hardcover, 2010 ed.)
Paul L. Greenwood, Alan W. Bell, Philip E. Vercoe, Gerrit J. Viljoen
R4,395 Discovery Miles 43 950 Ships in 10 - 15 working days

Prenatal life is the period of maximal development in animals, and it is well recognised that factors that alter development can have profound effects on the embryonic, fetal and postnatal animal. Scientists involved in research on livestock productivity have for decades studied postnatal consequences of fetal development on productivity. Recently, however, there has been a surge in interest in how to manage prenatal development to enhance livestock health and productivity. This has occurred largely due to the studies that show human health in later life can be influenced by events during prenatal life, and establishment of the Fetal Origins and the Thrifty Phenotype Hypotheses. This book, Managing the Prenatal Environment to Enhance Livestock Productivity reviews phenotypic consequences of prenatal development, and provides details of mechanisms that underpin these effects in ruminants, pigs and poultry. The chapters have been divided into three parts: Quantification of prenatal effects on postnatal productivity, mechanistic bases of postnatal consequences of prenatal development and regulators of fetal and neonatal nutrient supply.

Managing the Prenatal Environment to Enhance Livestock Productivity is a reference from which future research to improve the level of understanding and capacity to enhance productivity, health and efficiency of livestock in developing and developed countries will evolve. It is particularly timely given the development of molecular technologies that are providing new insight into regulation and consequences of growth and development of the embryo, fetus and neonate.

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