The production of chorionic somatomammotrophin in sheep

in Reproduction
Authors:
J. Martal
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J. Djiane
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DOI:
https://doi.org/10.1530/jrf.0.0490285
Volume/Issue:
Volume 49: Issue 2
Page Range:
285–289
Article Type:
Research Article
Online Publication Date:
Mar 1977
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Summary. The production of ovine chorionic somatomammotrophin (OCS) was demonstrated in the trophoblast from Days 16–17 of pregnancy. Concentrations in the placenta rose slowly until about Day 100 when there was a rapid increase to reach 70 ± 5 μg prolactin equivalent/g fresh placental tissue and 15 ± 2 mg/placenta on Day 120. After Day 140, the concentrations decreased. It is suggested that OCS may be luteotrophic and have an effect on fetal growth.

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Print ISSN:
1470-1626
Online ISSN:
1741-7899