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Detection of anovulation by heatmount detectors and transrectal ultrasonography before treatment with progesterone in a timed insemination protocol

, : Detection of anovulation by heatmount detectors and transrectal ultrasonography before treatment with progesterone in a timed insemination protocol. Journal of Dairy Science: 7, 2901-2915

Our objective was to determine the accuracy of identifying noncycling lactating dairy cows before the application of a timed artificial insemination (AI) protocol (with or without progesterone supplementation via a controlled internal drug-release (CIDR) insert and 2 different timings of AI) by using heatmount detectors and a single ovarian ultrasound examination.


DOI: 10.3168/jds.2007-0856

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