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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1988-10-13
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pubmed:abstractText |
The timing of ovulation in feral goats treated with 1200 i.u. PMSG +/- 50 micrograms GnRH was studied by repeated laparoscopy. Experiment 1 established that superovulation began as early as 30 h after withdrawal of progestagen-impregnated sponges and was not completed at 54 h if goats received PMSG alone. GnRH synchronized ovulation, leading to 91% of ovulations appearing between 36 and 48 h after sponges were withdrawn. Experiment 2 established that superovulation continued until up to 77 h in goats treated only with PMSG. The stress of repeated laparoscopy appeared to delay or abolish ovulation in some females. The mean (+/- s.e.) ovulation rate was greater in goats treated with GnRH (12.7 +/- 1.3) than in those that received PMSG only (9.7 +/- 1.1; P less than 0.05). Out of 47 of the females in Exp. 1, 43 had one or more corpora lutea at laparoscopy 24 h after withdrawal of progestagen. These early corpora lutea were associated with an increased concentration of plasma progesterone during the periovulatory period. Experiment 3 provided evidence that these corpora lutea arose before the withdrawal of progestagen-impregnated sponges.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0022-4251
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
83
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
747-52
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2970546-Animals,
pubmed-meshheading:2970546-Female,
pubmed-meshheading:2970546-Goats,
pubmed-meshheading:2970546-Gonadotropins, Equine,
pubmed-meshheading:2970546-Laparoscopy,
pubmed-meshheading:2970546-Ovulation,
pubmed-meshheading:2970546-Ovulation Induction,
pubmed-meshheading:2970546-Pituitary Hormone-Releasing Hormones,
pubmed-meshheading:2970546-Superovulation,
pubmed-meshheading:2970546-Time Factors
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pubmed:year |
1988
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pubmed:articleTitle |
Time of ovulation in goats (Capra hircus) induced to superovulate with PMSG.
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pubmed:affiliation |
Centre for Early Human Development, Monash Medical Centre, Clayton, Victoria, Australia.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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