Chapter 1: Basic Principles of the Thermal Environment and Livestock Energetics

dc.contributor.author DeShazer, James
dc.contributor.author Hahn, G.
dc.contributor.author Xin, Hongwei
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-13T04:37:59.000
dc.date.accessioned 2020-06-29T22:38:10Z
dc.date.available 2020-06-29T22:38:10Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2009
dc.date.embargo 2012-12-18
dc.date.issued 2009-01-01
dc.description.abstract <p>Description of the thermal environment and the livestock response can be complex, and has been the subject of extensive research for over fiver decades inspired in part by a joint report sponsored by ASAE (now ASABE) and ASHRAE. This 1959 report presented the "State of the Art" of the thermal environmental requirements of poultry (Stewart and Hinkle, 1959), dairy cattle (Yeck, 1959), beef cattle (Nelson, 1959), swine (Bond, 1959) and sheep (Kelly, 1959). Even though the report was comprehensive, data were noted as being incomplete for understanding the biophysical interactions between the animal and its thermal environment as required for effective management and engineering design. Heat loss for poultry was primarily based on basal (fasted) conditions, for example, and the role of the skin and hair in heat dissipation from cattle was inadequate. Comprehensive studies have been conducted in the intervening 50 years to evaluate the effects of nutrition, acclimation or conditioning, dynamic changes in the environment, physiological state, and social interactions on livestock productivity responses to the thermal environment: temperature, humidity, radiation, and air velocity.</p>
dc.description.comments <p>This book chapter is from James A. DeShazer, ed., <a href="http://elibrary.asabe.org/abstract.asp?aid=28294&t=3&dabs=Y&redir=&redirType=" target="_blank"><em>Livestock Energetics and Thermal Environment Management</em></a>, 1–22. St. Joseph, MI: ASABE, 2009. </p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/234/
dc.identifier.articleid 1232
dc.identifier.contextkey 3548886
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/234
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/979
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/234/Xin_2009_BasicPrinciplesThermal.pdf|||Fri Jan 14 22:48:20 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Introduction
dc.subject.keywords Characterization of Livestock Responses to Thermal Environments
dc.subject.keywords Thermal Exchange and Animal Responses
dc.subject.keywords Driving Forces for Heat Exchange Gradients
dc.subject.keywords Air Temperature
dc.subject.keywords Contact Temperature
dc.subject.keywords Radiant Temperatures
dc.subject.keywords Vapor Pressure
dc.title Chapter 1: Basic Principles of the Thermal Environment and Livestock Energetics
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 36e0a8ce-fa2e-4df4-9f67-8d1717122650
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
File
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Xin_2009_BasicPrinciplesThermal.pdf
Size:
5.86 MB
Format:
Adobe Portable Document Format
Description:
Collections