Switch to
| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
3
|
| pubmed:dateCreated |
1994-12-7
|
| pubmed:abstractText |
The physiological significance of the dominant follicle (> 9 mm in diameter in a growing phase; stable for < 3 days) for the superovulatory response in 117 lactating Holstein Friesian dairy cows was investigated. The presence or absence of a dominant follicle was determined retrospectively by analysing videotapes of follicular growth in all the ovaries. Superovulation was induced by 28 mg Armour units (400 mg NIH-FSH-P1) of FSH (Folltropin) administered either twice or once a day i.m. over 4 days in a decreasing regimen or as a single injection s.c. Donors were scanned daily from day 3 after the oestrus preceding superovulation until embryo recovery. In Expt 1 donors superovulated (two times a day for 4 days) in the absence of a dominant follicle yielded more corpora lutea (11.7 +/- 0.9 versus 4.7 +/- 1.1, P < 0.01), ova and embryos (8.2 +/- 1.2 versus 2.8 +/- 1.0, P < 0.01) and transferable embryos (5.0 +/- 1.0 versus 2.1 +/- 0.9, P < 0.05) compared with donors treated in the presence of a dominant follicle. In Expts 2 and 3 donors were scanned only on the day of superovulation and donors with < 10 follicles 3-8 mm in diameter were considered to have a dominant follicle, while donors with > or = 10 small follicles 3-8 mm in diameter were classified as having no dominant follicle.(ABSTRACT TRUNCATED AT 250 WORDS)
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Aug
|
| pubmed:issn |
0022-4251
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
101
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
583-91
|
| pubmed:dateRevised |
2003-11-14
|
| pubmed:meshHeading |
pubmed-meshheading:7966012-Animals,
pubmed-meshheading:7966012-Cattle,
pubmed-meshheading:7966012-Female,
pubmed-meshheading:7966012-Follicle Stimulating Hormone,
pubmed-meshheading:7966012-Ovarian Follicle,
pubmed-meshheading:7966012-Suction,
pubmed-meshheading:7966012-Superovulation,
pubmed-meshheading:7966012-Video Recording
|
| pubmed:year |
1994
|
| pubmed:articleTitle |
Assessment of the presence of a dominant follicle and selection of dairy cows suitable for superovulation by a single ultrasound examination.
|
| pubmed:affiliation |
Institut für Tierzucht und Tierverhalten (FAL), Neustadt, Germany.
|
| pubmed:publicationType |
Journal Article
|