Linked Life Data

8737896

Source:http://linkedlifedata.com/resource/pubmed/id/8737896

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1996-11-8
pubmed:abstractText
Day-old chicks (cockerels and pullets) of two strains of chicken (a commercial breed and strain of feral fowl) were treated intramuscularly with 25 mg/0.1 ml of testosterone oenanthate on day 1 posthatching. Controls received 0.1 ml of the vehicle. Attack and copulatory behavior were scored from days 7 to 14 using standard hand-thrust tests, which rank the responses from 1 to 10. The sizes of the comb and testes were also measured. All measures showed strain and sex differences. Copulation and attack scores were highest in males of the feral strain. Even untreated males of the feral strain had high scores, and these were further elevated by the testosterone treatment. In fact, the attack scores of feral males were marginally higher than those of the males of the commercial strain treated with testosterone. Testosterone treatment of the feral females also elevated attack and copulation to a much greater extent than in the commercial strain. Opposite effects occurred for the development of the comb. Comb volume, absolute and adjusted for body weight, was much greater in treated chicks of the commercial strain than in those of the feral strain. These results indicate that chicks of the feral strain may have more central and fewer peripheral receptors for testosterone or that their receptors for testosterone are more sensitive than those of the commercial strain. Alternatively, there may be strain, as well as sex, differences in the metabolism of testosterone.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0031-9384
pubmed:author
pubmed:issnType
Print
pubmed:volume
59
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1085-91
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Sensitivity to testosterone varies with strain, sex, and site of action in chickens.
pubmed:affiliation
Department of Physiology, University of New England, Armidale, NSW, Australia.
pubmed:publicationType
Journal Article