Document Detail


Food intake of sheep exposed to hot-humid, hot-dry, and cool-humid environments.
MedLine Citation:
PMID:  7332127     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Water intake, food intake (wet and dry weight), rectal temperature, and food digestibility were determined in 6 sheep exposed to 4 weeks each of hot-humid, hot-dry, and cool-humid environments, alternated with 3 weeks each of cool-dry exposure. Compared with values determined during the cool-dry environments, wet-weight food intake decreased between 5% and 33% and between 3% and 9% during hot-humid and hot-dry exposures, respectively. During the week of cool-humid exposure, wet-weight food intake decreased by 11%. During hot-humid, hot-dry, and cool-humid environments, dry-weight food intake decreased between 5% and 17%. The effect of high ambient temperatures on wet-weight food intake was significant (P less than 0.01), whereas dry-weight food intake was not related to ambient temperature. During hot-humid exposure, water intake decreased 4% and the increased 7%. During hot-dry exposure, water intake increased between 37% and 45%. During the first 2 weeks of cool-humid environment, water intake decreased between 13% and 15%. From the 4th week of hot-humid exposure until the 3rd week of the following cool-dry period, food digestibility increased between 18% and 32%. During hot-dry exposure, food digestibility increased between 6% and 14%. The digestibility of food was significantly increased (P less than 0.005) when dry-weight food intake increased; therefore, decreased digestibility was related to water content of the feed. Increased ambient humidity was associated with decreased dry-weight food intake (P less than 0.05).
Authors:
V H Guerrini
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of veterinary research     Volume:  42     ISSN:  0002-9645     ISO Abbreviation:  Am. J. Vet. Res.     Publication Date:  1981 Apr 
Date Detail:
Created Date:  1982-04-12     Completed Date:  1982-04-12     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0375011     Medline TA:  Am J Vet Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  658-61     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Body Temperature
Climate*
Digestion
Drinking
Eating*
Humidity*
Rectum / physiology
Sheep / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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