Glenn Selk

This year test the forage before you cut!

Hot dry summer weather brings about heat and drought stress on summer annuals. Stressed plants such as the forage sorghums can occasionally accumulate dangerous concentrations of nitrates. FULL STORY »

Nitrate toxicity after a drought-easing rain

Oklahoma summers often bring “high pressure domes” that cause 100+ degree days and no rain. The resulting heat stress can cause nitrate accumulation in summer annual forage crops. FULL STORY »

As summer heats up, so do water-toxicity issues

The 2011 Fourth of July Holiday brought warnings for humans about “Blue-green algae” in one of the large Oklahoma lakes used for recreation. Blue-green algae has often been a concern to livestock producers in late summer in Oklahoma. FULL STORY »

Cow-Calf Corner: Beef Production Tips Play video

Cow-Calf Corner is a collection of timely management tips of interest to cow-calf producers in Oklahoma. FULL STORY »

Closely monitor medicated mineral intake

Medicated minerals are available and frequently used to help prevent the blood-born disease, anaplasmosis. FULL STORY »

Weaning fall-born calves

Many cow/calf operations with fall-born calves will wean the calves in mid to late June. Weaning during very hot summer weather is stressful enough to the calves. FULL STORY »

Evaluate udder soundness now to use as culling criteria next fall

Every year at "preg" checking time, ranchers evaluate cows and make decisions as which to remove from the herd. FULL STORY »

Early summer de-worming of nursing calves affected summer weight gain

Five de-worming trials were conducted during the 1990’s at the Oklahoma State University Eastern Research Station located at Haskell, Oklahoma. FULL STORY »

Economic advantages to implanting nursing calves

Many new technologies have been made available to the beef industry over the last 75 years. Few have the potential return on investment as do growth promoting implants for nursing calves. FULL STORY »

Protecting more calves from respiratory diseases

It soon will be time to "work" the spring-born calves. Research is available that suggests that the young calves may be vaccinated with products used for protection against the respiratory diseases (IBR and BVDV). FULL STORY »

Early weaning for the beef herd

This article could probably be titled "What to Do If All Else Fails". Certainly no one ever plans to find himself in a drought, short of forage, and with a group of cows too thin to breed. FULL STORY »

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