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Dairy cattle wearing feeding muzzles while feeding at a feed bunk. A series of arrows on two of the cows labeled Y, Z, X represent feeding motions recorded by the muzzles, while two variables labeled T-0 and T-1 represent "lag" variables expressed by lowering their muzzle to the feed bunk table to eat. For a complete description, call SDSU Extension at 605-688-6729.

New Sensor Technology to Estimate Feed Intake in Lactating Dairy Cows

The use of sensor technology to advance the field of precision livestock farming is becoming more predominant in modernized dairy farms.

A herd of cattle grazing in a snowy pasture.

Nutritional Needs Prior to Calving

Nutrition during late gestation plays a large role on the future calf as well as the dam. It is during the last 60-90 days of gestation, or the pre-calving period, that impacts the calf’s survivability, long-term health and overall production.

two black beetles rolling a ball of dung

An identification guide to common Dung Beetles of South Dakota

A guide of common dung beetles of South Dakota.

A close shot of a black and red cow's face. A blurred white cow's head is in the foreground.

Testing Your Beef Cattle for Bovine Viral Diarrhea Virus

Bovine Viral Diarrhea Virus (BVDV) is among the most important pathogens affecting today’s beef and dairy cattle operations. Associated with reproductive, digestive, and respiratory illnesses in cattle, the virus can also create a congenital, persistent infection in calves, greatly aiding the virus’ spread within and between herds.

A brown cow and a black calf standing in a muddy, water-soaked feedlot.

Notes From the ADRDL: Yersinia Infections in Beef Cattle

Of all the germs associated with cattle illnesses, a pathogen that’s not one of the usual suspects has been identified in several cases of cattle death losses in Eastern South Dakota.

Left: Soil from long-term no-till field, exhibiting good soil aggregation through clumping and smaller pieces of soil. Right: Soil from conventionally managed field that included tillage and crop residue removal. Notice the soil is lighter brown, indicating lower organic matter, and the pieces of soil are in larger chunks with no visible indication of clumping or structure.

Organic Agronomy Starting to Impact

For decades scientists have known that a handful of soil contained more micro-biological organisms than the number of humans on earth. Science is just beginning to discover these organisms and learn about their functions and contribution to their soil ecosystem.

Variety of South Dakota native plants.

Range Roundup: SDSU’s Native Plant Initiative

The SDSU Native Plant Initiative aims to improve our understanding of South Dakota’s native plants, including which ones are best-suited for restoration and production. This information will help guide stakeholders in matching native species to desired restoration outcomes.

Young calves with cattle herd in spring.

Selecting a Calving Season Based on Matching Nutritional Needs and Resources

Choosing the calving season is a complex and highly individual decision for each beef cattle producer. A primary consideration in pasture-based cow-calf operations is choosing a calving season that will best match the forage supply to forage demand.

Small herd of cattle waiting for feed at dusk.

Feed at Night, Calve During the Day

As cattle producers begin thinking about calving season and management practices to ease the workload, night feeding is something to consider. Producers have questioned whether or not the time of feeding affects time of calving, and the answer is “Yes.”

man holding a small pile of soil in his hands

An Introduction to Salt-Impacted Soils in South Dakota

Introduction of salt-impacted soils in South Dakota for landowners.