Milk progesterone analysis

Forum: Milk progesterone analysis for determining reproductive status

Published on: 10/03/2012
Author/s : Michael L. O’Connor - Department of Dairy and Animal Science, The Pennsylvania State University Cooperative Extension - College of Agricultural Sciences (DAS 08-131 publication)
Poor reproductive performance is one of the most costly and difficult problems for dairy and livestock  producers. Even in some well-managed herds, reproductive failure continues to be one of the primary reasons why cows are culled. Depending on the level of milk production in the herd and variable costs associated with poor reproductive management, a dairy producer loses between $1 to $3 per cow ...
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Khelili Khelili
Student
October 3, 2012

Interesting article about Milk progesterone 
I want to ask a question:
I want to determine progesterone in milk samples from cows. I have plasma progesterone RIA kits (Immunotech). To avoid the problem of matrix, I want to prepare standard milk, but how to calibrate the milk standards?

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Abdelhalim Abdelhalim
doctor of Veterinary Medicine
March 4, 2013

Dear Kelili
I think the matrix is different. If you want to dose progesterone in milk, specific kits are available on the market.

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