Linked Life Data

1792335

Source:http://linkedlifedata.com/resource/pubmed/id/1792335

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1992-3-31
pubmed:abstractText
Ewes need to be primed with progesterone in order to achieve sensitivity to oestrogen. This relationship was examined in goats. In experiment 1 the median effective dose of oestradiol benzoate (ODB) required to induce oestrus during the breeding season (July) in progesterone-primed ovariectomized does was 15 micrograms, a dose similar to that reported to be required in ewes. In experiment 2 (initiated in March) the requirement for progesterone priming before injection of ODB to induce oestrus after a period without any exogenous hormone treatment, was compared in goats and sheep. Without progesterone priming, ovariectomized does were sensitive to doses of ODB between 20 and 80 micrograms, whereas ewes were not. This indicates that, unlike sheep, goats may not require progesterone priming in order to exhibit oestrus at the beginning of the breeding season. After being primed with progesterone, ewes were more sensitive to ODB than were does. In primed ewes the median effective dose of ODB was 12 micrograms whereas in does it was 27 micrograms. These differences may be due to a seasonal effect on oestrous behaviour or differences in sensitivity to oestrogen between the species.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1031-3613
pubmed:author
pubmed:issnType
Print
pubmed:volume
3
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
679-84
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Ovariectomized does do not require progesterone priming for oestrous behaviour.
pubmed:affiliation
University of Western Australia, Nedlands.
pubmed:publicationType
Journal Article, Comparative Study