![]() |
Welcome to Loot.co.za!
Sign in / Register |Wishlists & Gift Vouchers |Help | Advanced search
|
Your cart is empty |
||
|
Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Animal physiology
The development of the breast-shoulder apparatus in the Marsupialia was inves tigated and compared with the conditions in Monotremata and Placentalia. The results were achieved by the investigation of material comprising altogether 109 histological serial sections of intrauterine embryos, neonates, and pouch young from 11 marsupial species. Additionally, 54 skeletons of subadult and adult marsupials from 25 species were included for comparison. The embryonic states show a strong similarity to the developmental stage of the breast-shoulder apparatus in the monotremes. In contrast, the adult breast-shoulder apparatus generally corresponds to that in placentals. The following elements can be observed in the marsupial breast-shoulder apparatus during embryogenesis: scapula, metacoracoid, procoracoid, first rib, paired sternal elements, unpaired sternal element, and clavicle. All the elements mentioned together form a compact, continuous arch in both the intrauterine embryos and the neonates. In the pouch young, this arch is reduced rather soon after birth, so that a compact connection between the left and the right half of the body no longer exists. All that remains is a loose connection via the clavicle. The metacoracoid becomes the processus coracoideus scapulae. The procoracoid becomes the praeclavium. The unpaired sternal element fuses with the paired sternal element, generating the uniform manubrium sterni. The first rib takes its usual position in the thorax. In the pouch young, the breast shoulder apparatus as a whole already shows all the typical characteristics that can be determined in adults.
AAP Prose Award Finalist 2018/19 Management of Animal Care and Use Programs in Research, Education, and Testing, Second Edition is the extensively expanded revision of the popular Management of Laboratory Animal Care and Use Programs book published earlier this century. Following in the footsteps of the first edition, this revision serves as a first line management resource, providing for strong advocacy for advancing quality animal welfare and science worldwide, and continues as a valuable seminal reference for those engaged in all types of programs involving animal care and use. The new edition has more than doubled the number of chapters in the original volume to present a more comprehensive overview of the current breadth and depth of the field with applicability to an international audience. Readers are provided with the latest information and resource and reference material from authors who are noted experts in their field. The book: - Emphasizes the importance of developing a collaborative culture of care within an animal care and use program and provides information about how behavioral management through animal training can play an integral role in a veterinary health program - Provides a new section on Environment and Housing, containing chapters that focus on management considerations of housing and enrichment delineated by species - Expands coverage of regulatory oversight and compliance, assessment, and assurance issues and processes, including a greater discussion of globalization and harmonizing cultural and regulatory issues - Includes more in-depth treatment throughout the book of critical topics in program management, physical plant, animal health, and husbandry. Biomedical research using animals requires administrators and managers who are knowledgeable and highly skilled. They must adapt to the complexity of rapidly-changing technologies, balance research goals with a thorough understanding of regulatory requirements and guidelines, and know how to work with a multi-generational, multi-cultural workforce. This book is the ideal resource for these professionals. It also serves as an indispensable resource text for certification exams and credentialing boards for a multitude of professional societies Co-publishers on the second edition are: ACLAM (American College of Laboratory Animal Medicine); ECLAM (European College of Laboratory Animal Medicine); IACLAM (International Colleges of Laboratory Animal Medicine); JCLAM (Japanese College of Laboratory Animal Medicine); KCLAM (Korean College of Laboratory Animal Medicine); CALAS (Canadian Association of Laboratory Animal Medicine); LAMA (Laboratory Animal Management Association); and IAT (Institute of Animal Technology).
Many mammalian species living at medium or higher latitudes show marked annual cycles in various morphological and functional properties. There is a clear cycle of the reproductive activity ranging from a fertile to an infertile state in both the male and female. Such an annual periodicity can be regarded as an adaptation to seasonal changes of environmental conditions such as cli mate and nutrition, ensuring that birth and development of the litter are re stricted to a favorable season. These annual cycles consist of cyclic changes of exocrine and endocrine gonadal function, in the hormone-dependent organs (accessory glands, etc.) and in the hormonal hypothalamic-pituitary-gonadal system (for literature, see Hoffmann 1981). Such a seasonal cycle of reproductive activity was found in species from all vertebrate groups (i.e., birds, see Hoffmann 1981; Breucker 1982; reptiles, amphibians, and teleosts, see Hoffmann 1981). In those primate species of the Macaca family which are seasonal breeders (Zamboni et al. 1974), it was demonstrated by Richter et al. (1978) and Wickings and Nieschlag (1980) that these cycles are also evident under constant laboratory conditions, suggest ing that these cycles are based upon endogenous rhythms which are modulated and synchronized in the natural habitat by exogenous factors."
An elegant analysis of how animals work and function. Professor Schmidt-Nielsen’s incisive account gives a clear understanding of comparative physiology in relation to body size, form and function, energy supply, and environment. The author is concerned with principles. For example, he explains how difficult it may be to lose heat and water from the respiratory tract. This leads to a consideration of the mechanism of panting as a means of heat loss. The author describes the centuries-old problem of how birds breathe, which now has been solved in his laboratory. He then discusses energy expenditure for swimming, running, and flying, and the effects of activity on heat balance. The ability of mammals to maintain different parts of the body at different temperatures is explained on the basis of counter-current heat exchange; a related mechanism permits the fast-swimming tuna to enjoy some of the advantages of being warm-blooded. The problems raised by being small in size, or large, are considered in detail. It is shown that many physiological variables can be placed on a scale which permits the derivation of non-dimensional numbers to describe the interrelations between different parameters. This interesting and stimulating account was written primarily for students, but since it brings together and synthesizes much new and up-to-date information it will interest all biologists and physiologists.
This up-to-the-minute Second Edition of an incomparable resource describes in detail the bases for developing dosage forms for use in animals-highlighting the data necessary to meet regulatory approval. Demonstrates the successful characterization, control, and registration of new veterinary medicines! Thoroughly rewritten and enlarged to reflect the technical advances that have occurred since the previous edition, Development and Formulation of Veterinary Dosage Forms, Second Edition discusses the reasons for dosage form selection explains the latest available technologies examines new drug therapeutics reveals up-to-date techniques and applications for pharmacokinetic data covers the formulation of products derived from biotechnology elucidates recent analytical methods shows how to determine the type of dosage form appropriate for particular species and more! Written by a team of international authorities from North America and Europe and containing over 1100 bibliographic citation, figures, and tables, Development and Formulation of Veterinary Dosage Forms, Second Edition is an essential reference for pharmaceutical, animal, and quality control scientists; research pharmacists and pharmacologists; veterinarians; drug quality assurance and regulatory personnel in government and industry; pathologists; microbiologists; virologists; physiologists; toxicologists; and upper-level undergraduate and graduate students in these disciplines.
This book attempts to explore the contribution that biochemistry has made, thus far, to our understanding of the endocrine pancreas and its relationship to diabetes mellitus. It was written with the aim of using an important clinical problem to illustrate, to medical students, that there are many aspects of the biochemistry taught in the early years which have direct relevance to clinical medicine. Furthermore, it is hoped that such information might provide biochemistry students with a frame work on which to base further studies. To this end a selection of recent references has been placed at the end of each chapter. In spite of considerable advances in our understanding of diabetes mellitus, it is still a disease which many physicians do not seem to com prehend. This is in part related to their lack of understanding of the molecular biology of the disease. Advances in this area have been dramatic in recent years and we are now able to offer a molecular basis for a rational approach to therapy. It may be therefore that this book will provide some physicians with the information they require to help them gain a deeper understanding of the disease. I hope that everyone who reads this book is able to capture some of the fascination that the islets of Langerhans hold for myself and the many other workers actively engaged in trying to unravel their mys teries."
The student of biological science in his final years as an undergraduate and his first years as a graduate is expected to gain some familiarity with current research at the frontiers of his discipline. New research work is published in a perplexing diversity of publications and is inevitably concerned with the minutiae of the subject. The sheer number of research journals and papers also causes confusion and difficulties of assimilation. Review articles usually presuppose a background know ledge of the field and are inevitably rather restricted in scope. There is thus a need for short but authoritative introductions to those areas of modern biological research which are either not dealt with in standard introductory textbooks or are not dealt with in sufficient detail to enable the student to go on from them to read scholarly reviews with profit. This series of books is designed to satisfy this need. The authors have been asked to produce a brief outline of their subject assuming that their readers will have read and remembered much of a standard introductory textbook on biology. This outline then sets out to provide by building on this basis, the conceptual framework within which modern research work is progressing and aims to give the reader an indication of the problems, both conceptual and practical, which must be overcome if progress is to be maintained."
Isoenzymes were 'discovered' 20 years ago and were at first regarded as interesting but rare occurrences. Since then a wealth of information on enzyme heterogeneity has accrued and it now seems likely that at least half of all enzymes exist as isoenzymes. This is important in many areas of biological and medical science. Thus isoenzyme studies have provided the main experimental substance for the neutral drift controversy in genetics and evolution; they have greatly extended our understanding of metabolic regulation not only in animals but also in bacteria and plants; their existence has made available a multitude of highly sensitive markers for the study of differentiation and development, as well as providing indices of aberrant gene expression in carcinogenesis and other pathological processes. Iso enzymes are also being used increasingly in diagnostic clinical bio chemistry. It is surprising that this phenomenon which affects such a high pro portion of enzymes and is clearly important in biochemistry should receive such scant attention in the standard textbooks of that subject, the formal treatment of isoenzymology in these rarely exceeding one or two pages. This may be because the 'pure biochemist' has tended to regard variation in enzyme properties between tissues more as an unwanted complication than as a potential source of insight into diversity of biological function."
In this book we present a largely biochemical look at the metals of life and their functions, which we hope will be of interest to chemists and biologists as well as biochemists. The field of 'inorganic bio chemistry' is one of rapid change. Recent developments in our know ledge of the activity of calcium, and of the iron-sulphur proteins, are two examples, and increasing attention is being paid to non-metals as well 3]. For reasons of space, we shall restrict ourselves to the normal biological activities of metals. We must ignore, on the one hand, the gross physiological effects of metal deficiency or toxicity, and on the other, the many model studies which have been stimulated by the unusual properties of metals in biological systems. Usually the synthesis of model metal compounds follows rather than anticipates the dis covery of novel biological configurations. However, such studies give us a firm basis for an understanding of the biological systems, and sometimes answer questions that cannot be tackled any other way (for instance, what is the net charge on an iron-sulphur cluster?). As a result, we can refer to new and interesting information on the metals oflife at a chemical level. We gratefully acknowledge the help of Professor P. Banks and Dr D. Fenton who have read and criticized the manuscript, though any errors or misconceptions remain our own responsibility. We thank Mr P. Elliot for preparing Fig. 5.2."
It is known that the medial geniculate body (MGB) is the last relay center in the audi- tory system. Its projections to the auditory cortex have been studied extensively in the cat using retrograde cell degeneration and the Marchi technique. The auditory cortex has also been defined electrophysiologically and cytoarchitecturally by many authors (Fig. 1). Woolsey and Walzl (1942) first defined the primary (AI) and secondary (All) auditory areas by electrical stimulation of cochlear nerve fibers. Later studies have dem- onstrated other cortical areas responsive to auditory stimulation: the posterior ecto- sylvian area (Ep), the suprasylvian fringe (SF), the third auditory'area (AlII) in the sec- ond somatic sensory area (SII), the insular area (Ins) or the fourth auditory area (AIV), and the temporal area (Temp). Classic anatomic methods, such as the Marchi and retrograde cell degeneration methods, were not suitable for studying the precise organization of the cortical pro- jections of MGB, however, the Nauta method has been useful in the study of these pro- jections (Wilson and Cragg, 1969; Niimi and Naito, 1972, 1974; Sousa-Pinto, 1973). These studies indicated that parts of MGB send differential projections to individual auditory areas, although considerable overlap of the projections is seen. Furthermore, some authors showed that the pulvinar nuclear group also projects to the auditory cor- tex (Graybiel, 1973; Niimi et aI. , 1974a; Rosenquist et aI. , 1974).
In dem Forschungsgebiet "Insektenflug" treffen Fragestellungen der Biologie und der StrAmungsmechanik vielseitig zusammen. Der Bogen reicht von der Konstruktionsmorphologie A1/4ber die Flugbiophysik bis zur Energetik und zum Flugverhalten. Der Autor ist einer der international angesehensten Grundlagenforscher in diesem Forschungsgebiet. Das Buch stellt nicht nur einen Bericht A1/4ber die vielseitigen ForschungsansAtze von ihm und seiner Arbeitsgruppe dar; es bringt auch die allgemeinen Grundlagen und fA1/4hrt mit einer FA1/4lle von Beispielen an die Grenzen des derzeitigen Kenntnisstandes.
The standard electrocardiogram (ECG) is an indispensable, safe, and inexpensive test to assess dogs and cats with heart disease. This bestselling user-friendly book discusses the principles of electrocardiography, then systematically explores the evaluation of the ECG, including determination of heart rate, measurement of intervals, derivation of mean electrical axis, and criteria for atrial/ventricular enlargement or hypertrophy. At the core of this book is an extensive series of ECG cases for the reader to work through: practice makes perfect. New to this edition: Instructions on how to obtain an ECG A new chapter on the treatment of the most common clinically important ECG arrhythmias A second new chapter on 24-hour ECG (Holter) monitoring A handy one-page reference guide of important ECG values and diagrams, which can be downloaded from the book's webpage for easy reference 15 new ECG cases have been added to the original 46 cases, with a selection of advanced cases geared toward readers craving more challenging topics such as electrical cardioversion and pacemaker function. This updated edition will further aid veterinarians in their quest to better interpret the ECG. It provides information in an appealing, accessible, and easy to use format that fits with the busy lives of veterinary practitioners.
This volume had it's inception in a series of eight lectures delivered at Columbia University during the spring of 1905, and represents, in a much condensed form, the results of a decade of uninterrupted study of the Formicidae, and of the works that have been written on these insects.
This book on ancient fishes unites the work of many specialists coming from different areas of biology. Hagfishes, lungfishes, Chondrosteans, and Holosteans constitute the main subject of study. Fossil records and extant species are compared to establish the conservation or the degeneration of specific characters. However, phylogenetic relationships have mostly been revisited in the light of new molecular and developmental data. The morphology of several organs is also revisited. This volume includes a phylogenetic account of the cardiac outflow tract, and the particulars of the heart and circulation in lungfishes. The control of breathing and the lung-swim bladder issue is discussed. The developmental anatomy of the sturgeon gut and accounts of the gut structure in lungfishes and garfishes are also included. Biochemical and physiological aspects of the behavior of lungfishes and gars are presented. Reports on the fish olfactory system, and on the amazing slime glands of hagfishes, are also covered.
Recent advances in fish cytogenetics have enhanced the interest in chromosome analysis in both fundamental (systematics and comparative genomics among fishes and other vertebrate groups) and applied (aquaculture, conservation and response to pollutants, whole genome sequencing of model fish species) research. Although the genomic material, the chromosomes, is basically the same in the various organisms, experience has clearly shown that fish chromosomes have to be handled with specific protocols. In laboratories around the world, traditional cytogenetic techniques and molecular cytogenetics have seen a vast improvement but the technical details and protocols are often not published in scientific journals because of constraints in format and size and therefore they are not accessible to the whole scientific community. These shortcomings are very well known to fish cytogeneticists and the idea to prepare a specific manual was first discussed during the first "Workshop of Fish Cytogenetics" held in Concarneau (France), in 1992. Resulting from the above workshop, a draft compilation of the techniques and protocols in fish cytogenetics available at that time had been produced and distributed privately, but never published. There does not exist, at present, any published handbook or manual specifically dealing with fish cytogenetics. This book fills this void by bringing together and updating the main techniques so that the traditional methods can be standardized. Moreover, this book includes novel developments or improvements; some of the protocols provided here are practically unknown to the scientific community and even now unpublished.
Erythrocytes of the Rhesus and Cynomolgus Monkeys addresses the morphologic, quantitative, and generative aspects of the erythrocytes of the rhesus monkey Macaca mulatta and the cynomolgus monkey Macaca fascicularis (long-tailed macaque, crab-eating monkey). These two species are the most commonly selected nonhuman primates for basic science and clinical medical investigations. The hemopoietic cells of man and the rhesus monkey display an intimate homogeneity. Their functional activities are close and at times identical. The cynomolgus monkey was enlisted in biomedical studies at a time when rhesus monkeys were not available in sufficient quantities. It has gained increased use in the Far East and in the Western world. It is, for example, employed in the current development of a vaccine against the deadly Ebola virus. The authors of the book discuss the erythropoietic profiles of normal and abnormal macaques of both sexes and of all age groups as investigated with contemporary electronic methodologies. They cover the role of stress as it is perceived by the monkey and how it impacts erythrocellular values, and how to train the monkey to be a cooperative, unperturbed subject for hematologic study. Additional topics include the role of medication in deriving normal physiologic erythrocellular data, the development of the precursors of the erythrocyte (normoblasts), the morphologic analysis of the megaloblastic series of abnormal erythroid cells, the analysis of erythropoiesis in bone marrow, the relationship of the simian immunodeficiency virus and erythropoiesis, erythrocyte life span, and parasitic invasion of the red cell.
DIRECTLY APPLIES TO LIFE ON LAND SDG and CLIMATE CHANGE SDG. International organizations such as the Intergovernmental Panel on Climate Change (IPPC), World Health Organization, Food and Agriculture Organization and World Organization for Animal Health have all reminded us that health impacts of climate change will become some of societies' greatest challenges. How we respond or adapt to climate change will have profound implications for people, animals, biodiversity, economies and ecosystems today as well as in the future. The book provides, in one easy reference, all of the information Animal Health practitioners need from defining the climate change concept, providing science-based evidence of climate change degradation of animal (ecosystem) health and successful mitigation and reversal strategies. Despite being arguably the most important challenges of the 21st century, engagement, and leadership from the animal health sector on climate change remains hard to find. This book attempts to support animal health professionals by providing information, knowledge, and experiences they can use to remedy this situation. There is no other book that covers anything like the proposed subject matter to this level of completeness and detail. The publishing of a text of this nature could help erode the power of the climate denialism lobby, shifting the debate and allowing mitigation efforts to gain higher priority. The tone of the book has an understated sense of urgency, leaning slightly toward presenting as a 'Manual for the apocalypse'. This has potential to be a benchmark publication. The text not only defines climate change but takes a proactive approach with intervention and corrective action examples: each chapter ends with suggestions on teachable and actionable ideas that could be used to mobilize concepts and information provided into education or advocacy. In this way, the book not only brings key ideas, principles and information to understand the implications for climate change for animal health, but will help translate the book's offerings into education and intervention. Teachers and researchers could use this one-of-a-kind book to frame a course or seminar series heightening student career engagement and stewardship of a more sustainable and healthier planet.
Discusses alternative analgesic techniques - acupuncture, chiropractic, rehab. Covers anesthesia and sedation for the donkey/mule and miniature horse. includes over 400 colour illustrations and tables
3* Doody's Star Rating (R) CHOICE Magazine 'Recommended' (May 2020) As of 2018, pet obesity in the US affects an estimated 55.8 percent of dogs and 59.5 percent of cats, resulting in secondary conditions such as arthritis, diabetes mellitus, kidney disease, and certain forms of cancer. A complete and balanced diet accompanied by regular exercise is fundamental to optimize health and longevity in companion animals, meaning overweight pets have reduced quality of life and shorter life expectancy. Seeking to address this major modern-day problem, this book provides a comprehensive review of obesity in small animal medicine. Reviews epidemiology and how animal- and human-specific factors contribute to excess weight gain. Discusses the metabolic effects and inflammatory mediators associated with adiposity. Looks at various disease states and how they relate or develop as a result of obesity. Reviews different modalities to determine body composition to diagnose obesity. Offers a clinical approach to managing obesity with diet including discussion on the nutrients of concern for therapeutic weight loss diets. Veterinarians seeking to provide weight management services in practice will find clinically-applicable information from expert authors from both academic and practice backgrounds. Chapters cover topics ranging from epidemiology and pathophysiology of obesity to evaluation of body composition, and nutritional and behavioral management. The book also explores the role of exercise in managing obesity and looks at the management of co-morbidities. Finally, the authors present a range of case studies to demonstrate these topics in real-life practice.
The book concentrates on physiology and biochemistry and is not diluted by taxonomy/systematics - this makes it different from the competitor books and increases its worth at the postgraduate level and beyond. It makes a very good companion book to a second text that concentrates on taxonomic aspects, such as McGavin. It emphasizes the importance of a rigorous understanding of species-specific details. This is even more successful because of the depth of each chapter. The chapter on symbiosis is different, and very interesting and relevant. There is 'hidden depth', nuance and richness in many chapters, which explore a huge range of themes and relevant topics. The book puts emphasis on insect diversity and its implications for experimental design and interpretation, highlighting caveats in experimental design. It is extremely thought provoking. The writing style is easy to follow with very good descriptions of complicated topics. The edition is published in full color throughout. Ideal for upper level undergraduate and graduate students (in college course system, 300 level and above). For the first-time learners, the level of difficulty is comparable to the introductory level courses for Genetics.
The Colour Handbook deals with all aspects of urolithiasis in dogs, cats, rabbits and guinea pigs-from aetiology and pathogenesis to diagnosis, treatment and the prevention of disease recurrence. The authors introduce the reader to treatment protocols developed from their own research and experience, and incorporate international state-of-the-art knowledge of the disease. Topics covered in the Colour Handbook include epidemiology, risks in companion animal husbandry, species-specific differences, breed dispositions, genetic causes, relevant anatomical points, clinical diagnosis, stone composition, clinical pathology and treatment protocols. The Colour Handbook is a compact, wide ranging illustrated guide to dealing with urinary stones in small animals, of value to veterinarians in training and practice.
"Providing a fascinating alternative to the unwieldy life science
sources, this book describes how the nervous system (including the
brain) communicates with, sends signals to, and receives input from
the sensory organs.
This is the first guide to Veterinary Narrative Medicine, a cutting-edge approach in human medicine with multiple applications in veterinary medicine. The text combines the latest research with numerous real-world examples and practical techniques to improve client communication, patient care, and veterinary well-being. Narrative Medicine maintains that a patient should be viewed as an individual rather than an example of a disease process, and that this can be accomplished by using narrative. This book explores methods and theories from leaders in the human Narrative Medicine field while addressing topics unique to veterinary medicine. Readers will gain tools to help navigate difficult conversations and situations in clinical practice, including those involving the end of life. Narrative Medicine in Veterinary Practice also addresses the important issue of veterinary wellness. The ability to view the veterinarian's own stories and those of clients and patients as narratives may help practitioners maintain both emotional and work-place boundaries as well as decrease burnout and compassion fatigue. The book describes basic techniques to promote self-reflection and mindfulness, skills often overlooked in the veterinary profession which can improve resilience and increase the enjoyment of veterinary practice. This is important reading for veterinary practitioners, students, veterinary nurses, technicians, social workers, and all veterinary clinic staff. |
You may like...
The Oxford Handbook of the History of…
Eleanor Robson, Jacqueline Stedall
Hardcover
R4,198
Discovery Miles 41 980
Elementary Trigonometry; Solutions of…
H. S. (Henry Sinclair) 1848-1934 Hall, S. R. (Samuel Ratcliffe) Knight
Hardcover
R918
Discovery Miles 9 180
|