Mammalian Thermogenesis

Kids, Natural World, Nonfiction, Reference & Language, Education & Teaching, Science & Nature, Science
Cover of the book Mammalian Thermogenesis by , Springer Netherlands
View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart
Author: ISBN: 9789401160322
Publisher: Springer Netherlands Publication: December 6, 2012
Imprint: Springer Language: English
Author:
ISBN: 9789401160322
Publisher: Springer Netherlands
Publication: December 6, 2012
Imprint: Springer
Language: English

an attempt to rationalize these terminological and conceptual difficulties we have considered the origins of mammalian heat production from two different points of view. The scheme depicted in Fig. 1. 1 illustrates the fate of energy in the body as seen by the nutritionist. After allowing for losses of energy in faeces and urine, the metabolizable energy obtained from food is utilized for main­ taining and increasing body energy content (maintenance, external work, growth and production). The transformation of metabolizable energy into these forms of net energy also involves inevitable energy losses in the form of heat - thermic energy. Similarly, maintaining homeothermy in cold en­ vironments involves shivering and non-shivering thermogenesis (NST) and the energy costs of assimilating nutrients and retaining net energy results in obligatory heat losses due to diet-induced thermogenesis (DIT). This obligatory DIT is mainly due to the energy cost of protein and fat synthesis but, in addition to this, there is an adaptive component of DIT that helps maintain body energy content (i. e. body weight) by dissipating the metabolizable energy consumed in excess of the requirements for maintenance, growth and production. In Fig. 1. 2, we have converted this nutritionist's scheme (A) into one that A B r-------. . . , I I Production, Growth I I External work I I I I Essential energy expenditure NET BASAL Obligatory 1 I ENERGY Maintenance HEAT heat I FASTING at (BMR) productlpn for t ROC thermoneutrallty homeothermia r.

View on Amazon View on AbeBooks View on Kobo View on B.Depository View on eBay View on Walmart

an attempt to rationalize these terminological and conceptual difficulties we have considered the origins of mammalian heat production from two different points of view. The scheme depicted in Fig. 1. 1 illustrates the fate of energy in the body as seen by the nutritionist. After allowing for losses of energy in faeces and urine, the metabolizable energy obtained from food is utilized for main­ taining and increasing body energy content (maintenance, external work, growth and production). The transformation of metabolizable energy into these forms of net energy also involves inevitable energy losses in the form of heat - thermic energy. Similarly, maintaining homeothermy in cold en­ vironments involves shivering and non-shivering thermogenesis (NST) and the energy costs of assimilating nutrients and retaining net energy results in obligatory heat losses due to diet-induced thermogenesis (DIT). This obligatory DIT is mainly due to the energy cost of protein and fat synthesis but, in addition to this, there is an adaptive component of DIT that helps maintain body energy content (i. e. body weight) by dissipating the metabolizable energy consumed in excess of the requirements for maintenance, growth and production. In Fig. 1. 2, we have converted this nutritionist's scheme (A) into one that A B r-------. . . , I I Production, Growth I I External work I I I I Essential energy expenditure NET BASAL Obligatory 1 I ENERGY Maintenance HEAT heat I FASTING at (BMR) productlpn for t ROC thermoneutrallty homeothermia r.

More books from Springer Netherlands

Cover of the book Air Quality Management by
Cover of the book Structures in Science by
Cover of the book Landscape Ecology in Action by
Cover of the book Neighbourhood Effects or Neighbourhood Based Problems? by
Cover of the book Technology Developments: the Role of Mechanism and Machine Science and IFToMM by
Cover of the book Web-Teaching by
Cover of the book Fertility, Living Arrangements, Care and Mobility by
Cover of the book Potential for Industrial Energy-Efficiency Improvement in the Long Term by
Cover of the book The Radiological Examination of the Colon by
Cover of the book Manual of Peritoneal Dialysis by
Cover of the book Endemism in Vascular Plants by
Cover of the book Structures and Norms in Science by
Cover of the book Phosphorus in Agriculture: 100 % Zero by
Cover of the book Managing a Material World by
Cover of the book Design Computing and Cognition '12 by
We use our own "cookies" and third party cookies to improve services and to see statistical information. By using this website, you agree to our Privacy Policy