Hemorrhagic bowel syndrome (HBS) is a silent, confounding killer in dairy herds. It’s particularly stressful because the exact cause of HBS is unknown. There are few symptoms, it often impacts older high-producing cows, and it’s nearly always fatal. Often you don’t know a cow has HBS until it’s too late.

Most dairy cows have potentially disease-causing bacteria in their reproductive tract in low abundance. Cows develop uterine infection and disease when the pathogens overgrow and become dominant. Cows need to have a rapid, robust and well-regulated inflammatory response in the uterus during and immediately after calving to detach the placenta, keep bacterial pathogens in check and start uterine repair.

Skeletal muscle plays a crucial role in dairy cows’ health and productivity, but it’s also a very dynamic tissue. It can be mobilized to support milk production during periods of negative energy balance, but recovery of lost muscle is much slower.

The parlor is a critical place on a dairy to have productivity and efficiency dialed in 365 days a year. When it comes to leveling up your parlor output, audits are a helpful tool in finding ways to fine-tune and uncover areas for improvement that drive milk harvest success – ultimately impacting the dairy’s bottom line. 

Among the more problematic pathogens affecting cattle, Mycoplasma bovis (M. bovis) stands out for its involvement in chronic infections. The interaction between the outer makeup of the microorganism and the animal’s immune response contributes to its insidious nature, making treatment as well as prevention difficult.

By focusing on key factors that can influence your herd lifetime productivity and taking a holistic view of your farms, you can identify opportunities to maximize your herd efficiency and the long-term sustainability of your operation.

Most dairy farms follow a regular herd health schedule with a veterinarian, commonly using ultrasound every two weeks (or weekly, for the largest herds) to diagnose pregnant cows. However, with the introduction of more accessible, affordable and impactful options, it may be time to reconsider some common assumptions.

A less-studied strategy to help calves cope with cold stress could be through having a companion. Pair or group housing of calves has become a popular topic of discussion over the past few decades. We conducted a study to measure if pair-housing calves in a dual hutch system could help reduce the effects of cold stress during winter. Read about the study's results.

Producers today have a new tool available to help keep calves healthy and minimize sickness events before weaning. That tool is IgY.