Linked Life Data

1995861

Source:http://linkedlifedata.com/resource/pubmed/id/1995861

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1991-3-26
pubmed:abstractText
In the first experiment, the effects of food availability on growth and reproduction were assessed by placing male musk shrews on 3 different feeding schedules, i.e. fed ad libitum, fed 50% of the amount eaten by the ad-libitum controls or fed 25% of the amount eaten by the ad-libitum controls. After 25 days, growth and sexual maturation were significantly retarded in both of the food-restricted groups compared to the control group. In the second experiment, the combined effects of food availability and social cues were investigated in juvenile males that were either fed ad libitum (during the day) or placed on a restricted diet known to inhibit growth and reproduction. Half of these males were either housed alone or with an adult female (separated from female during the day by a wire barrier, but in full contact at night). The ad-libitum-fed males living with a female ate more food, gained more body weight and were more sexually mature than ad-libitum-fed animals living alone. Furthermore, males in the two food-restricted groups had lower body weights and were sexually immature compared with males in both of the ad-libitum-fed groups. Finally, there were little or no differences in growth and reproduction between animals in the two food-restricted groups. These results suggest that food availability is an important environmental regulator of the timing of sexual maturation, and that stimulatory social cues cannot override the inhibitory effects of an inadequate diet.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0022-4251
pubmed:author
pubmed:issnType
Print
pubmed:volume
91
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
385-92
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Effects of food restriction and social cues on sexual maturation and growth in male musk shrews (Suncus murinus).
pubmed:affiliation
Department of Biology, University of Virginia, Charlottesville 22901.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.