University of Minnesota Report: H5N1 Dairy Cow Study Finds Sustained Milk Production Drop, Extensive Transmission Across Herd

Mar 21, 2025

By Lisa Schnirring

Scientists who examined the impact of an H5N1 avian flu outbreak in an Ohio dairy herd that had about 3,900 cows found a milk production drop in clinically affected cows that lasted 60 days and extensive asymptomatic infections in other cows. The team, led by researchers at Cornell University, published their findings as a preprint study in Nature Portfolio.

The first illness in the herd was noted about 2 weeks after apparently healthy lactating cows from Texas were introduced into the herd. Decreased rumination and a decline in milk production appeared to decline about 5 days before clinical diagnosis.

Source : umaine.edu

Video: WARNING! Rough Start To Breeding Season!!

WARNING! Sheep Breeding Season Begins With A Bang! Breeding season is officially underway at Ewetopia Farms, but it didn’t exactly start the way we planned!

This vlog begins with us sorting through our rams to find the perfect match for a customer’s breeding program. What should have been routine quickly turned dangerous when one of our more nervous rams panicked. In seconds, Arnie’s knee was injured, and then I was slammed hard onto the concrete floor — both of us taken down by one ram!

Thankfully, it was just bruises, but it’s a reminder of how unpredictable and powerful mature rams can be. Once we recovered, it was time to get back to the real work — the start of breeding season.

We sorted the ewes into four breeding groups (two Suffolk and two Dorset), checking parentage as they ran through the chute, deworming those that needed it, and setting aside thinner ewes for session two of breeding season in a month’s time.This staggered approach keeps lambing organized and prevents overcrowding in the barns.

From rogue rams to the excitement of new breeding groups, this episode is full of action. Stay tuned for the next vlog, where we’ll share how we chose the rams for each group!