Twenty-one countries have eliminated bovine leukemia virus (BLV) from their cattle populations. The U.S. is not one of them. Years ago, it deemed the effort cost-prohibitive.

Serotonin has many known roles in the body, from signaling in the brain to coordinating intestinal movements. But researchers at the University of Wisconsin are investigating a new use for the compound in dairy cattle – preventing post-calving hypocalcemia.

Pawnee Farm Arlinda Chief, or Chief for short, is responsible for 14 percent of the current Holstein genome in the U.S.

Many factors can affect the body temperature of a dairy cow or heifer: illness, stress, breed, age, reproduction status, water intake, environmental conditions and diurnal cycles.

From 25 milliliters of teat dip to 12 milliliters. From two manual positions to one. These are the improvements VDS Farms in Fulton, Michigan, made after installing pre- and post-milking robots in their 40-stall rotary last fall, according to parlor manager Stijn Brebels.

The genetic code for all of life is written using just four letters: A,G, C and T. Armed with a powerful gene-editing tool known as CRISPR, humans can now erase and rewrite small segments of this code to generate big impacts in scientific fields from medicine to agriculture.

Wolfe’s Neck Farm in Freeport, Maine, purchased a mobile milking parlor after recognizing its potential to advance U.S. organic dairy production. However, that potential – like the machine itself – is stagnant.

A single bolus – that is all a cow may require to increase her milk yield and longevity, according to a study recently published in the Journal of Dairy Science.

As technology in the dairy industry expands, so do the abilities of producers to prevent disease and monitor herd health. In light of these advances, what role will the next generation of veterinarians serve on commercial dairies?