fertility test kit / for cattle / progesterone / serum
The progesterone level changes during the sexual cycle of cows. At day 0 of the cycle no or only very low levels of progesterone can be detected due to an inactive corpus luteum. The progesterone levels reach their maximum around 13 – 14 days after the estrus.
In case the cow is pregnant, progesterone levels increase continuously up to day 21 after fertilisation. Decrease of progesterone levels at day 20 show the begin of a new cycle which can be used for a new insemination.
This is a homogenous, immunoturbidimetric test.
A sample of 40 µl serum or li-hep plasma is needed.