|
KMID : 0900919810050010026
|
|
Korean journal of Animal Reproduction
1981 Volume.5 No. 1 p.26 ~ p.30
|
|
|
Studies on Serum Steroid Hormone Levels in the Puerperal Sow
|
|
Chung Yung-Chai
Kim Chang-Keun
Park Chang-Sik
|
|
|
Abstract
|
|
|
|
The purpose of this study was to measure the serum content of progesterone, estradiol 17{beta} and cortisol. Blood samples collected from day 20 prepartum to day 20 postpartum in 8 sows. Progesterone and estradiol-17{beta} were assayed by radioimmunoassay methods and cortisol was determined by competitive protein-binding methods. Progesterone levels began to decline on day -4, reached 1.9ng/ml by day +2 and remained quite constant thereafter. Progesterone levels remained fairly constant(18.4 to 20.0 ng/ml) from 20 to 6 days before parturition. Estrdiol-17{beta} increased from 205 pg/ml at day 6 prepartum to 425 pg/ml at the time of parturition. Cortisol reached a peak level of 86.5 ng/ml at day 0.
|
|
|
KEYWORD
|
|
|
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|
|