Glenn Selk

Cattle Health: Withdrawal Times Are Critical

Summer often brings a couple cattle health issues that must be treated for the well-being of the animal. Foot rot and pinkeye are both infections that often are responsive to antibiotic therapy. FULL STORY »

Cattle Feeding: Storing Large Round Bales

University of Tennessee animal scientists conducted a trial to compare different methods of storing large round bales of grass hay. The hay was cut and baled in June in Moore County, Tennessee. FULL STORY »

Cow Disposition Affects Pregnancy Rate

Now we have another good excuse to cull cows due to bad temperament. Producers that routinely breed cows artificially realize that cows that are unruly and nervous are less likely to conceive to artificial insemination.

Know The Cull Cow Grades Before You Sell

Some culling of beef cows occurs in most herds every year. The Beef Audits have generally shown that cull cows, bulls, and cull dairy cows make up about 20% of the beef available for consumption in the United States. About half of this group (or 10% of the beef supply) comes from cull beef cows. FULL STORY »

Realistic Expectations For Estrous Synchronization & AI Programs

Producers that are wanting to improve the genetic makeup of their beef herds very often turn to artificial insemination (AI) as a tool to accomplish that goal. Many times, these producers have very high expectations as they begin the first season of artificial breeding. FULL STORY »

Proper injection sites to remember at calf-working time

The month of May is traditionally the time when “spring round-ups” take place. This is the time that large and small cow/calf operations schedule the “working” of the calves. FULL STORY »

Protecting More Calves From Respiratory Diseases

It soon will be time to "work" the spring-born calves. New 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 »

Optimum Weaning Dates For Fall Calving Cows

Oklahoma State University animal scientists evaluated weaning dates of 158 Angus fall-calving cows over a 4 year period. Cows were allowed to nurse their calves for about 210 days (April Weaning) or 300 days (July Weaning).

Cattle Update: Observe Bulls Closely As Breeding Season Begins

Another title for this article could very well be: “A lesson nearly learned the hard way”. Quite a few years ago, at the Eastern Oklahoma Pasture Research station we were involved in a field study using synchronized mature cows in a natural breeding pasture. At the time not much was known in the scientific literature about cow:bull ratios when estrus synchronization was involved.

Breeding Soundness Exam Used To Evaluate Fertility In Bulls

Producers searching for a cost efficient method to promote a successful breeding program may find breeding soundness examinations for bulls beneficial. The importance of the bull in a cattle breeding program often is underestimated.

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AG10 Series Silage Defacers

Loosen silage while maintaining a smooth, compacted bunker space resulting in better feed and less waste. This unique tool pierces, ... Read More

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