TAMU ANSC 107 - Final Exam Study Guide (28 pages)

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Final Exam Study Guide



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Final Exam Study Guide

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Pages:
28
Type:
Study Guide
School:
Texas A&M University
Course:
Ansc 107 - General Animal Science
Edition:
1

Unformatted text preview:

ANSC 107 1st Edition Final Exam Study guide Lectures 19 22 Lecture 19 Enviormental physiology 1 Adaptation long term changes in animals in response to their environment that are genetically based 2 Acclimatization adaptation of an animals to environmental factors over a period of days or week increase in red cells 3 Conduction exchange of heat from warm too cold between objects that are touching 4 Convection flow of heat from warm too cold through air or water 5 Critical temperature the temperature below lower critical temperature which the animal must make physiological adjustments to maintain its body temperature Upper critical temperature is that temperature at which the animal makes adjustments to try and cool its body a Ex sweat glands and shivering b Reptiles can t do this but mammals can 6 Effective temperature total heating or cooling power of the environment Ambient temperature is affected by wind humidity and solar radiation a Affected by wind humidity and solar power i Shade and windbreak b Feedlots always have a wind break 7 Homoeothermic animals that maintain a relatively constant body temperature regardless of external temperatures Normal temperatures for farm animals are a Horse 100 b Cattle 101 5 c Sheep 102 d Goats 102 e Swine 102 5 f Chickens 107 8 Radiation exchange of heat between two objects that are not touching a Can results in the loss or gain of heat 9 Thermo neutral zone Range of temperature where heat loss and heat production are about the same Animals is in comfort zone no physiological response to temperature a Comfort zone b Heat loss heat production 10 Factor affecting critical temperature a Hair coat b Subcutaneous fat c Nutritional level d Is the animal wet or dry 11 Relationship of maintenance energy energy consumed and energy for gain with TNZ thermo neutral zone a Maintenance how much to eat to maintain friend easy Keeper 12 Hormonal response to temperature stress a Thyroxin produced by the thyroid gland thyroxin secretion



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