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Beef Reproduction and Genetics

All Beef Reproduction and Genetics Content

Red angus cattle gathered in a feedlot in winter.


South Dakota is home to a dynamic livestock industry.

herd of beef cattle grazing in a pasture


Home to more than 1 million head of cattle, South Dakota’s producers can rely on SDSU Extension for research-based information, best management practices and resources to support healthy and profitable herds.

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.”

A group of red angus cattle.

The Calving Distribution Calculator

Excel calculator for calving distribution

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.

Pregnant black angus cow.

Late Gestation Planning Prior to Calving

For most, weaning is in the books and pregnancy detection is complete or soon to be underway. Now is the time to pay attention to those pregnant cows out on crop residue or grass.

A young man analyzing the results of a pregnancy check on an electronic device.

Preg-Checking Decisions

There is much value in preg-checking spring-calving cow herds in the fall. The most common is to cull open cows from the herd. The second reason would be to reduce the number of late calving cows in the herd.

calf with mother cow in pasture

Effects of Shipping and Heat Stress on Embryonic Mortality in Cattle

Fact sheets on the effect of shipping and heat stress on embryonic mortality in cattle.

A small herd of black angus cattle at pasture.

Understanding Estrous Synchronization of Cattle

Fact sheet on the use of estrus synchronization of cattle

Several black beef cattle close together feeding.

Influence of Body Condition on Reproductive Performance of Beef Cows

Fact sheet about understanding effects of body condition score on reproductive performance.