Effect of Environment on Nutrient Requirements of Domestic Animals PDF Download
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309031818
Category : Science
Languages : en
Pages : 169
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309031818
Category : Science
Languages : en
Pages : 169
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Book Description
Author: John Davenport
Publisher: Springer Science & Business Media
ISBN: 9401123446
Category : Science
Languages : en
Pages : 249
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Book Description
To humans, cold has a distinctly positive quality. 'Frostbite', 'a nip in the air', 'biting cold', all express the concept of cold as an entity which attacks the body, numbing and damaging it in the process. Probably the richness of descriptive English in this area stems from the early experiences of a group of essentially tropical apes, making their living on a cold and windswept island group half way between the Equator and the Arctic. During a scientific education we soon learn that there is no such thing as cold, only an absence of heat. Cold does not invade us; heat simply deserts. Later still we come to appreciate that temperature is a reflection of kinetic energy, and that the quantity of kinetic energy in a system is determined by the speed of molecular movement. Despite this realization, it is difficult to abandon the sensible prejudices of palaeolithic Homo sapiens shivering in his huts and caves. For example; appreciating that a polar bear is probably as comfortable when swimming from ice floe to ice floe as we are when swimming in the summer Mediterranean is not easy; understanding the thermal sensa tions of a 'cold-blooded' earthworm virtually impossible. We must always be wary of an anthropocentric attitude when considering the effects of cold on other species.
Author: Andrew Cossins
Publisher: Springer Science & Business Media
ISBN: 9400931271
Category : Science
Languages : en
Pages : 346
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Book Description
Temperature is one facet in the mosaic of physical and biotic factors that describes the niche of an animal. Ofthe physical factors it is ecologically the most important. for it is a factor that is all-pervasive and one that. in most environments. lacks spatial or temporal constancy. Evolution has produced a wide variety of adaptive strategies and tactics to exploit or deal with this variable environmental factor. The ease with which temperature can be measured. and controlled experimentally. together with its widespread influence on the affairs of animals. has understandably led to a large. dispersed literature. In spite of this no recent book provides a comprehensive treatment of the biology of animals in relation to temperature. Our intention in writing this book was to fill that gap. We hope we have provided a modern statement with a critical synthesis of this diverse field. which will be suitable and stimulating for both advanced undergraduate and post graduate students of biology. This book is emphatically not intended as a monographical review. as thermal biology is such a diverse. developed discipline that it could not be encompassed within the confines of a book of this size.
Author: Rastogi S. c
Publisher: New Age International
ISBN: 9788122412796
Category : Physiology
Languages : en
Pages : 598
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Book Description
Author: Knut Schmidt-Nielsen
Publisher: Cambridge University Press
ISBN: 9780521570985
Category : Medical
Languages : en
Pages : 630
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Book Description
How do dolphins catch fish in murky water? Why do moths drink from puddles? How do birds' eggs breathe? How do animals work? In this revised and updated edition of the acclaimed text Animal Physiology, the answers are revealed. In clear and stimulating style, Knut Schmidt-Nielsen introduces and develops the fundamental principles of animal physiology according to major environmental features - oxygen, food and energy, temperature, and water. The structure of the book is unchanged from the previous edition, but every chapter has been updated to take into account recent developments, with numerous new references and figures. Animal Physiology is suitable as a text for undergraduate and beginning graduate courses in physiology. As with previous editions, students, teachers as well as researchers will find this book a valuable and enjoyable companion to course work and research.
Author: Pat Willmer
Publisher: John Wiley & Sons
ISBN: 1444309226
Category : Science
Languages : en
Pages : 768
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Book Description
The new and updated edition of this accessible text provides a comprehensive overview of the comparative physiology of animals within an environmental context. Includes two brand new chapters on Nerves and Muscles and the Endocrine System. Discusses both comparative systems physiology and environmental physiology. Analyses and integrates problems and adaptations for each kind of environment: marine, seashore and estuary, freshwater, terrestrial and parasitic. Examines mechanisms and responses beyond physiology. Applies an evolutionary perspective to the analysis of environmental adaptation. Provides modern molecular biology insights into the mechanistic basis of adaptation, and takes the level of analysis beyond the cell to the membrane, enzyme and gene. Incorporates more varied material from a wide range of animal types, with less of a focus purely on terrestrial reptiles, birds and mammals and rather more about the spectacularly successful strategies of invertebrates. A companion site for this book with artwork for downloading is available at: www.blackwellpublishing.com/willmer/
Author: Charles Gardner Rogers
Publisher:
ISBN:
Category : Body temperature
Languages : en
Pages : 68
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Book Description
Author: John Hawthorn
Publisher: Elsevier
ISBN: 1483154629
Category : Technology & Engineering
Languages : en
Pages : 475
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Book Description
Low Temperature Biology of Foodstuffs describes the concept of low temperature biology and its application in the food industry. This book is divided into 23 chapters and begins with descriptions of several low temperature processes, such as nucleation, ice crystal growth, and freezing. The succeeding chapters deal with the protective mechanisms in frost-hardy plants, the physico-chemical changes in foods during freezing and storage, and the influence of cold storage, freezing, and thawing microbial and population of several foodstuffs. These topics are followed by discussions of the principles of freezing and low-temperature storage of fruit and vegetables. Other chapters explore the process of gelation, the freezing and frozen storage of fish muscle and meat. The final chapters look into the subjective evaluations of frozen food quality, including their physico-chemical properties. This book will prove useful to food scientists and manufacturers.
Author: Goyal
Publisher: Rastogi Publications
ISBN: 9788171338641
Category :
Languages : en
Pages : 520
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Book Description
Author: Mark Denny
Publisher: Harvard University Press
ISBN: 0674060857
Category : Science
Languages : en
Pages : 400
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Book Description
The alarm calls of birds make them difficult for predators to locate, while the howl of wolves and the croak of bullfrogs are designed to carry across long distances. From an engineer's perspective, how do such specialized adaptations among living things really work? And how does physics constrain evolution, channeling it in particular directions? Writing with wit and a richly informed sense of wonder, Denny and McFadzean offer an expert look at animals as works of engineering, each exquisitely adapted to a specific manner of survival, whether that means spinning webs or flying across continents or hunting in the dark-or writing books. This particular book, containing more than a hundred illustrations, conveys clearly, for engineers and nonengineers alike, the physical principles underlying animal structure and behavior. Pigeons, for instance-when understood as marvels of engineering-are flying remote sensors: they have wideband acoustical receivers, hi-res optics, magnetic sensing, and celestial navigation. Albatrosses expend little energy while traveling across vast southern oceans, by exploiting a technique known to glider pilots as dynamic soaring. Among insects, one species of fly can locate the source of a sound precisely, even though the fly itself is much smaller than the wavelength of the sound it hears. And that big-brained, upright Great Ape? Evolution has equipped us to figure out an important fact about the natural world: that there is more to life than engineering, but no life at all without it.
