ANALYSIS: The Rise of Beef and Dairy Animal Crossbreeding in the US 

Beef-on-dairy (beef x dairy) crossbreeding has gained significant traction in recent years, particularly the use of Holstein cows bred with widely used beef cattle breeds.  Financial incentives are present for dairy farmers in times when milk checks remain uncertain.

Historically, however, the beef and dairy sectors have operated as largely separate industries. Dairy farms have primarily focused on milk production, with breeding programs aimed at optimizing traits like milk yield, udder health, and reproductive efficiency...

FSIS to Start H5N1 Beef Monitoring Sampling

On September 16, 2024, the FSIS will be adding H5N1 influenza A monitoring in dairy cows at slaughter to its already robust national surveillance programs for pathogens and chemical contaminants.

FSIS will leverage its existing National Residue Program (NRP) and conduct H5N1 sampling in the muscle samples of dairy cow carcasses already collected for this program. Samples will be tested by FSIS laboratory personnel using polymerase chain reaction (PCR) testing. Carcasses sampled under the NRP are held by establishments pending results of residue testing...

Study Confirms Mammal-to-Mammal H5N1 Spread

A new Cornell University study provides evidence that a spillover of avian influenza from birds to dairy cattle across several U.S. states has now led to mammal-to-mammal transmission – between cows and from cows to cats and a raccoon.

A new Cornell University study provides evidence that a spillover of avian influenza from birds to dairy cattle across several U.S. states has now led to mammal-to-mammal transmission – between cows and from cows to cats and a raccoon.

“This is one of the first times that we are seeing evidence...