Purdue’s Jacquelyn Boerman, PhD, sees video analytics as a powerful addition to feeding cows more precisely and monitoring them 24/7. She explained how a top-view camera was deployed by researchers and predicts applications can be tailored to nutritionists, including cow identification, body weight estimation, feed management and daily feed intake. The research was funded by … [Read more...]
Fewer cull cows are driving dairy herd growth
The milk cow population has been trending upward since December 2024, largely due to dairy cow retention, writes Abbi Prins. Instead of cull cows showing up in cattle slaughter reports, these cows are still being milked in barns across the country and are making calves destined for beef feedlots. Source: Hoard’s Dairyman, December 1, 2025. Link. Beef-on-dairy revenues are … [Read more...]
Novel milking speed trait is highly heritable
Commentary While the economics and science are apparent, I can’t help but chuckle at the thought of a discussion about speed milking. The whole topic, albeit valid seems parallel to what makes NASCAR cars winners. The pit stop will be different, though. Source: Hoard’s Dairyman, June 23, 2025. Link. Image: Link. … [Read more...]
Stop doing cosynch
Cosynch is a management practice on dairies where GnRH treatments and artificial insemination are performed simultaneously. While labor-saving, Paul M. Fricke PhD, reviews the importance of timing in what is termed the ovsynch 56 protocol. In summary, the science does not support the cosynch approach. Source: Hoard’s Dairyman, June 2, 2025. Link. INSIGHTS: Articles like … [Read more...]
Ramp up fly control or breathe through your teeth
Maggie Gilles provides a reminder all animal health pros need. Fly control begins with regular sanitation to remove manure and organic material from breeding areas. To increase effectiveness, it is important to implement one or more of the fly reduction approaches targeted to different life stages of the pesky flies. Stable flies and horn flies are the primary targets for … [Read more...]
Preventing mastitis in pregnant heifers
Ben Enger, PhD, describes the significant udder tissue growth and development required for an animal to enter lactation. He shares the importance of avoiding infections, especially in the last four months of pregnancy noting that immune factors to fight infections will also damage the growth of developing cells. He recommends udder health surveillance in first-lactation animals … [Read more...]
Lameness comes with a hefty price tag
When thinking about the effects of lameness, most managers typically consider the cost that goes into preventative measures or treatments such as trimming, bandages, blocks, and antibiotics, Eric Ronk shared recently. He describes these as direct costs but asserts the importance of considering the economic impact on other areas of the operation, including fertility, culling and … [Read more...]
Fresh cows run a daily marathon
Three weeks before and three weeks after calving, dairy cows experience massive changes in nutrient and micromineral demands. An energy deficit is common in this period and cows struggle to take in more energy than they deplete. Jessica McArt, DVM, compares this energy challenge to marathon runners in this article. Her analogy might help explain the effects of transition to a … [Read more...]
Review: 3 keys to lameness prevention
Hoof care requires diligent efforts to avoid lameness in dairy animals. Properly maintained footbaths are critical along with regular hoof trimming and scraping multiple times per day. Jason Hartschuh shares the importance of footbath depth and solution options, including copper sulfate, formalin and zinc sulfate. Source: Hoard’s Dairyman, October 28, 2024. Link. Barn … [Read more...]
FDA: Aspirin use in dairy cattle and other food animals is now prohibited
Citing HPAI infections in dairies, drug residue risks and concerns about protocol drift, the FDA has reversed its stance on using aspirin, which was never approved for use in cattle. Protocol drift is a real thing . . . there are approved drugs with labeled indications, those should be our first line of treatment.” - Alison Vander Plaats, DVM Source: Hoard’s Dairyman, October … [Read more...]
Declining cull cow numbers reflect shift from beef-on-dairy trend
Dairy producers are enjoying the cash flow improvements from the beef-on-dairy market, which is lowering the number of cull cows marketed and increasing the purchases of semen. The beef-on-dairy trend is also challenging the number of replacement dairy heifers available and prioritizing the purchase of gender-sorted dairy semen. Source: Hoard’s Dairyman, August 5, 20234. … [Read more...]
The average dairy cow is still growing
There is a vital need for reevaluation of current feeding and grouping strategies, writes Alvaro Garcia. Separating first-lactation cows from older ones in dairy barn settings serves several critical purposes including tailored management, particularly in nutrition. The herd’s social dynamics often significantly impact younger cows. With most cows spending a limited time on … [Read more...]
Prepare now to help cows end the summer well
Steve Martin offered some ways to help cows through the cumulative effects of heat stress last August. He offers some heat abatement ideas that can still be implemented as June heats up. Providing better shade, clean water and air movement is always helpful. Consider using his article to discuss ideas with dairy producers on farm calls or get-togethers Source: Hoard’s … [Read more...]
Repeat offenders should really be culled
Culling is a difficult thing for producers as they frequently fight to keep animals well, fed and producing. But the more chronically infected cows you keep in the herd, the more new infections you’ll have in the herd, shared Pam Ruegg, DVM. Source: Hoard’s Dairyman, September 28, 2023. Link. You don’t treat your way out of chronic cows. You’re not making money on these … [Read more...]
A look into acidosis and liver abcesses
Liver abscesses are nothing new to beef packers, but the condition is more common in crossbreds. The incidence is rising in native and dairy-influenced cattle. There is not one clear cause of liver abscesses. However, it is widely accepted that they are more common in animals that experience ruminal acidosis, according to Kendall L. Samuelson, PhD, PAS. Samuelson describes … [Read more...]
New York City birds found carrying H5N1
Discovering a few wild birds carrying highly pathogenic H5N1 avian influenza highlights that the interface between animals and humans that may give rise to zoonotic infections or even pandemics is not limited to rural environments and commercial poultry operations. It extends into urban centers, according to the American Society of Microbiology. Source: Infectious Disease … [Read more...]
Managing dry-off with high-producing cows
Abruptly ceasing milking is a widely adopted practice for low-producing cows but may not be the best method for drying off high-producing cows. Heather Dann shares approaches for reducing milk yield before dry-off to manage involution and keeping cows healthy. Source: Hoard’s Dairyman, May 6, 2024. Link. INSIGHTS: Consider sharing this article with dairy producers to help … [Read more...]
Cull cows, beef value now important for dairy profits
Cull beef cows were the topic of a recent post <Link>. For dairy producers, the value of cull cows and beef have moved from a rounding error to a critical component in profitability. This “beef value” can no longer be ignored, and producers that don’t make it part of their margin calculus may be leaving dollars on the table explains Will Babler. Source: Hoard’s … [Read more...]
Focus on heifers to improve reproduction success, costs
The main reproduction challenge on dairies now lies in the heifer herd, according to the University of Wisconsin-Madison’s Paul M. Fricke, PhD. He said, “Now that we’re raising fewer heifers, it’s more important to be better with them.” Fricke believes attention to reproduction is an important element in lowering the cost to raise a heifer to calving. Source: Hoard’s … [Read more...]
At 70 degrees F calves and cows start feeling the heat
A spring day in the 70s is often celebrated. Jackets get removed, grills get lit, golf clubs come out and cars get washed. But in the calf barn and calving pens, as well as in loafing lots, cattle start to move toward heat stress. Reminding producers that heat stress does not discriminate, Jimena LaPorta, PhD, shared the importance of keeping calves and cows cool. Source: … [Read more...]
Dairy industry contraction trend continues
There were 1,642 dairies that milked cows for the last time in 2023, bringing the number of dairy farms with a permit to sell milk in the United States to 26,290, a reduction of 5.9 percent of the nation’s dairy farms. Overall, herd size has grown 382 percent over the past 32 years keeping cow numbers relatively steady. Source: Hoard’s Dairyman, March 11, 2024. Link. … [Read more...]
Don’t throw away extra milk
It is the most common disease in dairy cattle. Twenty percent to 40 percent of cows develop clinical mastitis each lactation. This article shares perspectives on mastitis treatment, choosing which cows to treat, culturing milk samples to determine the treatment pathway and economic considerations as presented by Pamela Ruegg, DVM, MPVM. Source: Hoard’s Dairyman, March 8, … [Read more...]
Social studies for dairy calves
The best way to house dairy calves has been a recurring discussion topic over the last decade or so among dairy producers. With industry standards changing faster than ever, the idea of paired housing has been getting more consideration. Not a new topic, a post from 2016 referenced a Journal of Dairy Science study on paired housing benefits <Link>. In this article, … [Read more...]
Bedding makes a difference to cow comfort
Dairy cows will rest in a lying position 14 or more hours per day. Maximizing cow comfort during these periods is important to optimum production. Italian researchers compared wheat straw and poplar wood shavings focusing on the cleanliness of the beds and comfort of the cows resting on them in a small study worth noting and using to start a conversation on a farm … [Read more...]
Treating digital dermatitis
Acknowledging that digital dermatitis is likely to become endemic once it gets into a dairy, Doerte Doepfer, DVM, MSc, PhD, shares the importance of good detection, prompt treatment, strategic use of disinfecting foot baths and including hoof trimmers as part of the health management team. Source: Hoard’s Dairyman, November 9, 2023. Link. Also see: Search results for: … [Read more...]
Cows are picky about their stalls
Multiple factors, such as lameness and pecking order, influence where cows rest. Maggie Gilles writes about the proclivity dairy cows have for specific locations and stalls based on research from the Miner Institute. Her article is short and offers a worthy topic to bring up during calls on dairies. Source: Hoard’s Dairyman, November 10, 2023. Link. … [Read more...]
Foreign animal disease outbreaks on minds of producers
More than 65 percent of persons interested in swine health and production are concerned about foreign animal disease getting into the U.S. hog population based on this snapshot of a National Hog Farmer reader poll. Qualitative measurements help animal health pros identify opportunities to support producers’ prevention efforts to keep animals and the food chain safe. Source: … [Read more...]
The back story on dumped tanker loads of milk
Too much milk? Yes. Labor shortages? Absolutely! Corey Geiger shares why so much milk has been dumped and a historical perspective on June Dairy Month, the spring flush and how spot loads of milk have traditionally gone to cheese makers. Source: Hoard’s Dairyman, July 10, 2023. Link. … [Read more...]
Freemartins and Peter Pan heifers
Commentary Occasionally we run across terminology that is foreign to us. In the articles here, we share two such terms: freemartin and Peter Pan heifers. Source: FEEDLOT, June 21, 2022. Link. Twins calves can be a challenge. But when one is a bull calf and the other a heifer often the heifer is a freemartin. Freemartin heifers are females with an improperly developed … [Read more...]
How long do cows wait to be milked?
Great question! Short answer? You can’t set it and forget it with automatic milking systems. The longer cows wait to be milked, the less time they have to rest. Knowing that long periods of standing are detrimental to cow health and comfort, increasing their chance to develop lameness and hoof lesions, a research team studied cow behavior in free-flow and guided-flow barns … [Read more...]