Dairy Science Digest

DSD 3.7 | Is She Settled?

July 14, 2022

How much would you value knowing that she’s bred earlier than convention? Canadian researcher Dr. Jean Durocher and his team at DHI was approached by dairy producers to determine the feasibility of weekly milk PAG testing all the way down to 23 days post insemination, potentially helping resync and rebreed her a week earlier.

The cost of days open can range from $3.00-$5.50/cow/day. Knowing her status sooner will assist in decreasing these costs.

This month’s feature article “Bayesian estimation of sensitivity and specificity of a milk pregnancy-associated glycoprotein ELISA test for pregnancy diagnosis between 23 and 27 days after insemination in Holstein dairy cows” found here.


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