University of Florida

PCB6816 - Thermal Physiology

frosty horse


P.J. Hansen, Dept. of Animal Sciences
Room 122 Bldg 499 (Larson Dairy Science Building)
Phone: 2-5590 Fax: 2-5595
Animal Sciences Faculty Page

Time and Place:

For 2016, the class is scheduled to meeting March 21 to April 8.  In fact, all of the lectures have been recorded as voice-over powerpoint slide shows. These can be accessed at either the t:/hansen/pcb6816 folder on the Animal Sciences server or you can get them from my dropbox account (I will send the link).

If you like, you can wait to start listening to the lectures and studying until March 21. However, depending on your schedule, it might be beneficial to start listening to the lectures now or at some point before March 21 so you can study at a more relaxed pace.

There are a total of  19 slide shows that represent 18 lectures (numbered according to sequence) and an additional slide show that corrects an error I made for slide show 6. 

Note that there are no text book or readings for the course.

There will be three exams in the course.  They are scheduled for March 25, April 1 and April 8.   I will make arrangements with you as to how to take the exam - either live, in class, or through some other arrangement. If you would like to take the exams at an earlier date, that could be arranged as well.  Exam exam is comprehensive. However, exam 1 will focus on lectures 1-6, exam 2 on lectures 7-13 and exam 3 on lectures 14-18. 

Course Objectives:

  1. To acquire principles of thermal biology with special focus on homeotherms living in hot climates.
  2. To develop the ability to relate principles of thermal biology to problems of animal
    management caused by adverse environments.


General Responses of Animals to Environment

Concepts of Adaption

Heat Production

Heat Balance

Heat Loss - Radiation

Heat Loss - Conduction and Convection

Heat Loss - Evaporation

Thermoneutral Zone


Effects of Heat Stress on Lactation

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There is no required textbook.


Exams will primarily be essay and short answer questions including questions related to analysis and interpretation of data from research papers.  Dates of exams (to be held in class) are February 6, 13 and 20.

Each exam will focus on new material since the last exam but it is expected you will knowledge of all the material presented in class at the time of the exam.  Each exam will cover material that had been delivered to you by the Wednesday before  the exam.


The grading scale is A, 91-100%; A-, 89-90; B+, 86-89; B 81-85, B- 79-80, C+, 76-78, C 71-75, C-, 69-70, D, 60-68 and F, 0-59.  The scale may be adjusted with a curve.

For information on current UF policies for assigning grade points, see

If you are having trouble with the course, see the instructor.

Communication About The Class

Email will be used as the major method for communicating when not in class. Therefore, provide Dr. Hansen with your email address, if one is available. Dr. Hansen's email is
Any changes in the course or important updates will also be posted on a webpage listing:

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Online Course Evaluation Process

Student assessment of instruction is an important part of efforts to improve teaching and learning. At the end of the semester, students are expected to provide feedback on the quality of instruction in this course using a standard set of university and college criteria. These evaluations are conducted online at Evaluations are typically open for students to complete during the last two or three weeks of the semester; students will be notified of the specific times when they are open. Summary results of these assessments are available to students at

Academic Honesty

As a student at the University of Florida, you have committed yourself to uphold the Honor Code, which includes the following pledge:  “We, the members of the University of Florida community, pledge to hold ourselves and our peers to the highest standards of honesty and integrity.”  You are expected to exhibit behavior consistent with this commitment to the UF academic community, and on all work submitted for credit at the University of Florida, the following pledge is either required or implied: "On my honor, I have neither given nor received unauthorized aid in doing this assignment."  

It is assumed that you will complete all work independently in each course unless the instructor provides explicit permission for you to collaborate on course tasks (e.g. assignments, papers, quizzes, exams). Furthermore, as part of your obligation to uphold the Honor Code, you should report any condition that facilitates academic misconduct to appropriate personnel. It is your individual responsibility to know and comply with all university policies and procedures regarding academic integrity and the Student Honor Code.  Violations of the Honor Code at the University of Florida will not be tolerated. Violations will be reported to the Dean of Students Office for consideration of disciplinary action. For more information regarding the Student Honor Code, please see:  

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Software Use:

All faculty, staff and students of the university are required and expected to obey the laws and legal agreements governing software use. Failure to do so can lead to monetary damages and/or criminal penalties for the individual violator. Because such violations are also against university policies and rules, disciplinary action will be taken as appropriate.

Services for Students with Disabilities

The Disability Resource Center coordinates the needed accommodations of students with disabilities. This includes registering disabilities, recommending academic accommodations within the classroom, accessing special adaptive computer equipment, providing interpretation services and mediating faculty-student disability related issues. Students requesting classroom accommodation must first register with the Dean of Students Office. The Dean of Students Office will provide documentation to the student who must then provide this documentation to the Instructor when requesting accommodation

0001 Reid Hall, 352-392-8565, Disability Resource Center

Campus Helping Resources and Counseling Services

Students experiencing crises or personal problems that interfere with their general well-being are encouraged to utilize the university’s counseling resources. The Counseling & Wellness Center provides confidential counseling services at no cost for currently enrolled students. Resources are available on campus for students having personal problems or lacking clear career or academic goals, which interfere with their academic performance.

  • University Counseling & Wellness Center, 3190 Radio Road, 352-392-1575,
    Counseling Services
    Groups and Workshops
    Outreach and Consultation
    Self-Help Library
    Wellness Coaching
  • Career Resource Center, First Floor JWRU, 392-1601,

Art Work:

Painting on the top left is Frosty Reception by Doug Strickland
Painting in center is Labors of the Month: February, Très Riches Heures du Duc de Berry (1412-1416) by Limbourg Brothers
Painting on top right is Spooked by Gwendolyn H. Branstetter
top left and right reproduced with permission from the artists  

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