Glenn Selk
Feed conversions of creep feeds for nursing calves
Feed conversions of calves fed creep feeds have been quite variable to say the least.
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Cow-calf corner: Tips to increase weaning weight
Glenn Selk demonstrates management practices to help increase weaning weight.
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Cow-calf corner: Supplementation programs
Glenn Selk talks about feeding trends with OSU alumni Rick Rasby, who is now an Extension cattle specialist at the University of Nebraska.
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Keep or cull open replacement heifers?? (and buyer beware)
For some Oklahoma cow calf operations, the bulls go into the breeding pasture with replacement heifers in mid-April.
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Cow-calf corner: Preventing calf scours
Cow-Calf Corner is a collection of timely management tips of interest to cow-calf producers in Oklahoma. This week, Glenn Selk explains how to prevent calf scours.
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Using artificial insemination in very warm weather
The high temperature in Altus, Oklahoma on April 1st was 98 degrees F. (No April Fool’s joke intended! It was just 93 degrees in Stillwater.)
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Make a record of twins
Estimates of the percentage of beef cattle births that produce twins vary. One estimate (Gilmore) puts the percentage at about 0.5% or 1 in every 200 births.
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Cow-calf corner: Body condition at calving, rebreeding
Glenn Selk teaches us the importance of maintaining good heifer body condition scores at calving and rebreeding.
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Interval timing from calving to return to heat cycles
Research data sets have shown conclusively that young cows that calve in thin body condition but regain weight and condition going into the breeding season do not rebreed at the same rate as those that calve in good condition and maintain that condition into the breeding season.
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Take advantage of the drought of 2011
The hot, dry weather of 2011 across the Southern Plains certainly created a hardship for commercial cow calf operations that are short of standing and stored forage.
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Cow-calf corner: Breeding replacement heifers
Glenn Selk discusses considerations when breeding yearling replacement heifers with synchronized artificial inseminations programs using the feed additive Melengestrol Acetate.
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- New animal identification rules aid disease traceability
- Oklahoma producers have access to new OQBN tool
- Survey reveals most Americans in favor of COOL
- Oil ends higher on weaker dollar, supplies weigh
- Purdue's beef evaluation program receives 10,000th bull
- Corn planting pace turns from record slow to record fast
- Michigan hay buyers should plan purchases early
- Ag markets were mixed to start the new week
- U.S. cattle placements rise in April as feed costs subside
- Corn planting pace turns from record slow to record fast
- New school lunch beef recipes win approval from kids, foodservice
- Corn and soybean prices continue to retrace 2012 drought rally



