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LH release and luteal function in post-partum acyclic ewes after the pulsatile administration of LH-RH.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wright, P. J. Geytenbeek, P. E. Clarke, Iain J. Findlay, John K. |
| Copyright Year | 1983 |
| Abstract | The administration of LH-RH in a pulsatile regimen (100 ng i.v./h for 48 h) to acyclic ewes 26-30 days post partum increased plasma LH concentrations, and both the frequency and amplitude of plasma LH pulses. In 12/14 ewes these increases were followed by plasma LH surges similar to the preovulatory surges observed in 10 control cyclic ewes. Subsequent luteal function in the post-partum ewes was deficient. Plasma progesterone was detected in 7/12 post-partum ewes showing plasma LH surges. The concentrations were lower (1.3 +/- 0.2 ng/ml) and detected for shorter periods (3-10 days) than in cyclic ewes (2.4 +/- 0.2 ng/ml, 12/15 days). In the post-partum ewes the increases in plasma LH concentrations before the LH surge were higher but of shorter duration than in the cyclic ewes. The inadequate luteal function in the post-partum ewes could therefore have been due to inappropriate LH stimulation of the ovary before the LH surge. |
| File Format | PDF HTM / HTML |
| DOI | 10.1530/jrf.0.0670257 |
| PubMed reference number | 6339715 |
| Journal | Medline |
| Volume Number | 67 |
| Issue Number | 2 |
| Alternate Webpage(s) | https://rep.bioscientifica.com/downloadpdf/journals/rep/67/2/jrf_67_2_002.pdf |
| Alternate Webpage(s) | https://doi.org/10.1530/jrf.0.0670257 |
| Journal | Journal of reproduction and fertility |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
