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A group of brown cattle foraging in a green field.

Prussic Acid Poisoning

As the first frost date approaches, producers often have concerns about the risk of prussic acid poisoning in livestock. Certain forage plants, especially sorghums and related species are associated with an increased risk of death loss because of prussic acid poisoning.

Group of calves grazing in a fenced-in area.

Weaning Calves on Cover Crops

What do we do if it is time to wean calves, but the pen isn’t ready? That can be a real concern during wet fall seasons, such as 2019. Putting calves into muddy pen conditions is far from desirable, but holding calves on the cows deep into fall increases the risk of adverse winter weather and tends to pull body condition off the cows.

A patch of western wheatgrass with ergot fungus growing throughout.

Ergot in Western Wheatgrass and the Potential Effects for Winter Grazing

2019 has been a year fraught with challenges for ranchers across South Dakota. Abundant precipitation is usually a blessing, however, wet conditions coupled with a cool spring followed by warmer temperatures has caused another problem across the rangelands of South Dakota: ergot poisoning.

A close up view of the stem of palmer amaranth which is hairless.

Identification and Management of Palmer Amaranth in South Dakota

Guide for the identification and management of Palmer Amaranth in South Dakota

A herd of cattle gather around a stock pond on a vast, lush grassland. Courtesy: USDA [CC BY 2.0]

Weed Control: Pasture and Range

There are 24 million acres of native and tame pasture and range as well as 1.4 million acres of grass hayland in South Dakota.

cattle out on a snowy white day

Winter Cow Supplementation Options

Cold temperatures coupled with wind chill and precipitation make it challenging to meet a cow’s nutrient requirements during the winter months.

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 heard 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.

grass with field bindweed, a viny green weed with white flowers

Weed Control: Noxious Weeds

Noxious Weed Recommendations: Herbicides for pasture, range, and non-crop areas, including roadside and other right-of-way that may be harvested for hay or grazed, are given a priority.

Black angus cattle feeding in a feedlot.

What Goes Into Calculating Yardage?

Yardage cost is the non-feed cost per head for every day that an animal is fed harvested feed in some form of confinement. Yardage is usually associated with calves and yearlings in the feedlot, but this concept can apply to drylotted or wintering cows as well.