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Dairy Science Commons

Open Access. Powered by Scholars. Published by Universities.®

2016

Kansas State University Libraries

Timed AI

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Full-Text Articles in Dairy Science

Additional Small Dose Of Prostaglandin F2Α At The Time Of Ai Fails To Improve Pregnancy Rates Of Lactating Dairy Cows, J. Stevenson, J. A. Sauls, L. Mendonca Jan 2016

Additional Small Dose Of Prostaglandin F2Α At The Time Of Ai Fails To Improve Pregnancy Rates Of Lactating Dairy Cows, J. Stevenson, J. A. Sauls, L. Mendonca

Kansas Agricultural Experiment Station Research Reports

In two experiments we tested the hypothesis that administering 10 mg of prostaglandin F(PGF) to lactating dairy cows concurrent with timed artificial insemination would increase pregnancy outcome. In three herds with 2,135 inseminations, we failed to demonstrate a positive effect on pregnancy per AI. Although a trend was observed in experiment 1, with more cows in experiment 2, the PGF treatment failed to improve pregnancy outcomes.