This week on The Moos Room, Brad shares updates from the University of Minnesota’s dairy research center, where staff have been on strike and he’s been back in the barn doing chores, milking, feeding, and even pulling calves late at night. With calving season underway, Brad shifts the focus to a new review article on weaning practices in young ruminants, authored by Heather Nave at Purdue University.

The discussion explores the stress calves, lambs, goat kids, and beef calves experience when transitioning from milk to solid feed, and how management decisions—such as weaning age and milk removal method—impact long-term health, growth, and welfare. Brad breaks down the pros and cons of abrupt versus gradual weaning, highlights the benefits of later weaning, and shares practical strategies to reduce stress, from nutritional management and water access to social housing and avoiding stacked stressors.

Key takeaways include:

• Later and gradual weaning generally improves growth, gut health, and reduces stress.
• Early access to palatable solid feed and free-choice water is essential for rumen development.
• Environmental enrichment and positive human contact can help ease the transition.
• Veterinarians and farmers should balance short-term economics with long-term animal health and productivity.

Tune in for research-backed insights and practical tips to improve calf and herd outcomes during one of the most critical stages of development.

Improving the Welfare of Ruminants Around Weaning in Veterinary Clinics of North America: Food Animal Practice

Questions, comments, scathing rebuttals? -> themoosroom@umn.edu or call 612-624-3610 and leave us a message!

Linkedin -> The Moos Room
Twitter -> @UMNmoosroom and @UMNFarmSafety
Facebook -> @UMNDairy
YouTube -> UMN Beef and Dairy and UMN Farm Safety and Health
Instagram -> @UMNWCROCDairy
Extension Website
AgriAmerica Podcast Directory

In this episode, Brad dives into the growing interest in milk fatty acid profiles and what they can tell us about cow health, nutrition, and management.

Brad explains the three main groups of milk fatty acids—de novo, mixed, and preformed—and how they are shaped by diet, stage of lactation, seasonality, and even genetics. He highlights how monitoring these fatty acid trends through routine milk testing can help farmers fine-tune rations, detect health challenges like subclinical ketosis or mastitis, and make more informed feeding decisions.

Brad also shares findings from two recent University of Minnesota research projects:

• Commercial herd study: Comparing Holsteins and crossbreds, as well as feeding strategies (higher starch diets vs. fat supplementation). Results showed small but meaningful differences in fatty acid profiles, with crossbreds showing slightly healthier rumen indicators.
• University herd study: Comparing organic pasture-based cows to conventional TMR-fed cows, and looking at breed influences (Holsteins, Viking Reds, Jerseys, and Normandy crosses). Pasture cows had higher preformed fatty acids, while Jerseys and Normandy crosses stood out for more favorable fatty acid compositions.

The takeaway: fatty acid testing is a valuable management tool for nutrition, genetics, and herd health monitoring—and could even open new opportunities for niche milk markets.

Questions, comments, scathing rebuttals? -> themoosroom@umn.edu or call 612-624-3610 and leave us a message!

Linkedin -> The Moos Room
Twitter -> @UMNmoosroom and @UMNFarmSafety
Facebook -> @UMNDairy
YouTube -> UMN Beef and Dairy and UMN Farm Safety and Health
Instagram -> @UMNWCROCDairy
Extension Website
AgriAmerica Podcast Directory

In this Labor Day episode, Brad highlights the history of the holiday in the U.S. and Canada before diving into a brand-new genetic evaluation for Holstein dairy cattle: milking speed. Released in August 2025, this trait provides an objective way to measure how quickly cows milk—expressed in pounds of milk per minute—with the Holstein breed average set at 7 lbs/min.

Brad explains how this evaluation was developed using parlor sensor data (not robot milking systems) from over 165 herds and 43,000 cows, making it more accurate than traditional subjective scoring methods used in other breeds. With heritability at 42%, milking speed is a promising selection tool for improving parlor efficiency and labor use.

The episode also covers:

• How milking speed correlates with traits like somatic cell score and mastitis.
• The range of variation in bulls and what that means for selection decisions.
• Why milking speed isn’t yet included in the lifetime merit index.
• Practical implications for farmers considering faster vs. slower milking cows.

Brad wraps up by reflecting on how this new tool could impact herd management at the Morris research herd and encourages producers to watch for milking speed in future bull proofs.

Questions, comments, scathing rebuttals? -> themoosroom@umn.edu or call 612-624-3610 and leave us a message!

Linkedin -> The Moos Room
Twitter -> @UMNmoosroom and @UMNFarmSafety
Facebook -> @UMNDairy
YouTube -> UMN Beef and Dairy and UMN Farm Safety and Health
Instagram -> @UMNWCROCDairy
Extension Website
AgriAmerica Podcast Directory