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Ohio Cattleman - Winter 2019 by Ohio Cattlemen's Association - Issuu
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Cotton County OSU Cooperative Extension Service
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Manure Scoring with OSU's Mark Johnson - Oklahoma Farm Report
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Fall Calving in Hot Weather with Mark Johnson - Oklahoma Farm Report
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SUNUP, SUNUP - Aug. 26, 2023, Season 16, Episode 1609
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OSU's Mark Johnson Presents a 2023 Winter Management Checklist
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Oklahoma Farm Report - OSU's Mark Johnson Says Management and
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Oklahoma Farm Report - OSU's Mark Johnson Talks Fall Calving in
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The Newsletter, December 20, 2021
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January 21, 2023 by Wyoming Livestock Roundup - Issuu
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Beef specialists warn of bloat on wheat pasture