Linked Life Data

8592886

Source:http://linkedlifedata.com/resource/pubmed/id/8592886

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1996-4-3
pubmed:abstractText
To determine the influence of a dominant follicle on the superovulatory response in midlate lactating cows, the dynamics of follicular growth and the development of corpora lutea and embryos were studied. Real-time B-mode ultrasonography with a 7.5 MHz rectal linear-array transducer was used to scan the ovaries daily, from 8-12 days before superovulation until day 7 post-estrus, when embryos were recovered. On the first day of superovulation cows were classified as belonging to either a 'dominant' group (n = 12) having a 'dominant follicle', i.e. > 9 mm in diameter in growing phase or stable for < 4 days, or a 'non-dominant' group (n = 11) those carrying a 'non-dominant follicle', i.e. a follicle in a regressing phase or with the same diameter for > 4 days. Cows in the 'dominant' group had significantly higher numbers of 4-6 and 7-10 mm follicles than cows in the 'non-dominant' group on the third and the fifth day of superovulation. The total number of follicles (> 4 mm) preovulation and the number of CL day 7 postovulation was higher in the 'dominant' group than in the 'non-dominant' group. There were no differences between groups regarding the total number of embryos or transferable embryos recovered. The results indicate that superovulation in mid-late lactation is not negatively affected by the presence of a 'dominant follicle'. The criteria to define 'dominant' and 'non-dominant' follicles might be redefined when applied to lactating cows, whose response to superovulation seems to be under the influence of many other factors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0514-7158
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
123-9
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Superovulatory response in lactating cows with different follicular dynamics.
pubmed:affiliation
Department of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, Uppsala.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't