Source:http://linkedlifedata.com/resource/pubmed/id/11440874
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2001-7-6
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pubmed:abstractText |
Our understanding of insulin-like growth factor-I (IGF-I) in cervids has been limited mostly to its effects on antler development in red deer (Cervus elaphus), roe deer (Capreolus capreolus), fallow deer (Dama dama), and pudu (Pudu puda). Although IGF-I has been found to play a critical role in reproductive function of other mammals, its role in reproduction of deer is unknown. The objectives of the present study were to determine if serum levels of IGF-I change during the breeding season, assess whether age influences serum IGF-I, compare levels of IGF-I measured during and following the breeding season, and determine if IGF-I is associated with body and antler characteristics in free-ranging adult, male white-tailed deer (Odocoileus virginianus). We collected serum and morphometric data from hunter-harvested and captured white-tailed deer to investigate these objectives. Mean level of serum IGF-I during the breeding season was 63.6 ng/ml and was greatest in deer between 2.5 and 5.5 years old (57.4-79.9 ng/ml). Levels of serum IGF-I decreased by approximately 40% as the breeding season progressed, but levels were less in deer following the breeding season (34.6 ng/ml). Both body and antler size were associated positively with IGF-I when controlling for age. Serum testosterone was also associated positively with IGF-I. Levels of serum testosterone during the breeding season generally increased with age from 4.82 (1.5 years old) to 18.79 ng/dl (5.5 years old), but decreased thereafter. These data suggest that IGF-I may be an important hormone in breeding, male white-tailed deer.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
1095-6433
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
129
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
887-95
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:11440874-Aging,
pubmed-meshheading:11440874-Animals,
pubmed-meshheading:11440874-Antlers,
pubmed-meshheading:11440874-Body Weight,
pubmed-meshheading:11440874-Breeding,
pubmed-meshheading:11440874-Deer,
pubmed-meshheading:11440874-Insulin-Like Growth Factor I,
pubmed-meshheading:11440874-Male,
pubmed-meshheading:11440874-Testosterone
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pubmed:year |
2001
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pubmed:articleTitle |
Concentrations of insulin-like growth factor-I in adult male white-tailed deer (Odocoileus virginianus): associations with serum testosterone, morphometrics and age during and after the breeding season.
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pubmed:affiliation |
Department of Zoology, Oklahoma State University, Stillwater, OK 74078, USA. ditchkss@auburn.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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