Preparturient changes in allantoic fluid and fetal plasma from chronically catheterised ewes.
作者信息
Mellor D J, Smith B S, Matheson L C
出版信息
Res Vet Sci. 1975 May;18(3):328-9.
PMID:1144926
Abstract
Before birth a marked rise in the potassium/sodium concentration ratio of allantoic fluid coincided with a similar rise in the corticosteroid levels of fetal plasma. The prepartum corticosteroid increase started at 134-136 days gestational age whether delivery occurred at 141 or 151 days.
摘要
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