All six calves inherited the gene for preventing horn growth, but four also got a piece of the plasmid used to introduce the sequence to their dad—complicating regulatory approval.

Like dogs and horses, goats can discern happy from angry facial expressions. But whether these animals possess empathy remains unclear.

While farmers have the green light to grow the genetically engineered plant, FDA approval is still needed before the seeds are sold as food.

Tens of thousands of hogs are being slaughtered to stop its spread.

Scientists have engineered swine that pollute less, fend off disease, and produce more meat, but you won’t find them outside experimental farms . . . yet.

Preliminary results from a USDA study reveal that imported guard dogs outperform those traditionally used in the U.S. to fend off wolves and coyotes.

Tracking the myxoma virus in the wild rabbit populations of Australia has yielded insight into how pathogens and their hosts evolve.

An analysis of 52 homeopathic trials conducted on livestock since 1981 reveals a lack of reproducibility, rigor, and efficacy.

Evidence of resistance to a “last-resort” drug for antibiotic-resistant bacteria is discovered among farm animals for the first time.

Researchers assess some of the downstream effects of treating livestock with a broad-spectrum antibiotic.

The first two bulls genetically engineered to lack horns arrived at the University of California, Davis, for breeding.

Scientists tracing the history of livestock breeding probe parchment documents for genetic information.

Researchers at Trinity College Dublin and the University of York excavate the genetic secrets contained in the DNA of old parchments.

Genomics and advanced reproductive technologies have turned cattle breeding into a whole new animal.

Watch scenes from the 2013 World Dairy Expo, where KHW Regiment Apple-Red-ET won the reserve championship while her clone took home the grand championship.

Amid concerns that the use of antibiotics may contribute to drug resistance, sales for use in livestock rose in recent years.

A measure moving through the California legislature requires farmers to obtain a prescription to administer antibiotics to livestock.

Foregut microbes in Mojave Desert rats help the animals metabolize creosote toxins.