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Cotton County OSU Cooperative Extension Service
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Oklahoma Farm Report - OSU's Mark Johnson Tells Ranchers to Act
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Oklahoma Farm Report - Preparing for Winter Calving with OSU's
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Mark Z. Johnson Bovine Veterinarian
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Preparing Cows for Winter and Spring Calving
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Bulls Drovers
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Volume 25, Number 1 - Winter/Spring 2023 by Cowboy Journal - Issuu
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The Carolina Cattle Connection - Volume 37, Issue No. 4 (APRIL
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Cotton County OSU Cooperative Extension Service
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Fall Calving in Hot Weather with Mark Johnson - Oklahoma Farm Report
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SUNUP - Video Oklahoma State University
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Cow-Calf Corner - Preparing Bulls for Breeding (3/6/21)
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Oklahoma Country – Spring 2021 by Oklahoma Farm Bureau - Issuu
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Cow Country News - January 2015 by The Kentucky Cattlemen's
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Getting Ready for the Next Cold Snap