Abstract
Oxytocin was determined by means of a specific radioimmunoassay in blood plasma of cows around parturition. Blood samples were collected from the jugular vein via an indwelling canula from 7 cows of the local Brown Swiss breed. During late pregnancy, oxytocin levels were below the sensitivity of the assay (< 3 pg/ml) but increased during the period when the calf was expelled (range 62-194 pg/ml), then decreased to lower measurable levels and increased again for a short period at the time of expulsion of the placenta. Afterwards oxytocin levels were again below the detectable range.
Original language | English |
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Pages (from-to) | 267-270 |
Number of pages | 4 |
Journal | Animal Reproduction Science |
Volume | 2 |
Issue number | 1-3 |
DOIs | |
State | Published - Jun 1979 |