The intricate structure of cow hooves is a marvel of biological engineering but also a potential point of failure under stress. The suspensory apparatus can be a boon or an Achilles’ heel for today’s dairy cows. Damage to the complex suspensory apparatus leads to permanent structural changes and the chance of chronic lameness. The persistent […] Read more
Dairy — page 11
Amazing biology, but there’s also risk in bovine hooves
Is the suspensory apparatus in bovine hooves a boon or Achilles' Heel?
Strategic use of chelated trace minerals in dairy rations makes sense
There are specific cases where chelated trace minerals should be used in dairy diets
In the last couple of years I have noticed that most dairy lactation diets contain a fortified level of chelated trace minerals. When I ask dairy producers why they feed them over conventional ones, they often say they don’t know or their nutritionist thinks it is a good idea. There is nothing technically wrong with […] Read more
Preventing the introduction of BVD
European analysis shows dairy herds at greater risk for the disease than beef cattle
Bovine viral diarrhea (BVD) infection is typically introduced to a herd with the arrival of a persistently infected (PI) animal—a bovine that appears normal but sheds large amounts of the BVD virus into the environment. Naïve cattle exposed directly to the virus through nose-to-nose contact or indirectly through contaminated materials become sick with a fever, […] Read more
Managing veterinary medicine shortages
Cattle producers often find bare shelves when they need animal health products
In the ever-changing world of global supply, cattle producers regularly face inconsistent supplies of critical animal health products. This makes it necessary for producers to be in close contact with their veterinarians to ensure they’ve got what they need when they need it. The issues that can affect supply are varied and include: For example, […] Read more
Genetic analysis confirms stable flies as mastitis vector
Research shows flies can carry the bacteria from manure breeding sites
New genetic sequencing research shows that stable flies carry pathogenic bacteria associated with mastitis. Petri dish research is now supplemented with gene sequencing in the bacteriology lab so a team of scientists at the University of Wisconsin decided it was time for an update to the understanding of relationships between dairy barn-dwelling flies and milk […] Read more
How dairy testing for avian influenza works in the U.S.
States are taking varied approaches that range from animal testing, to recording who enters a farm
States in the U.S. are playing a key role in the nation’s response to a growing outbreak of avian flu among dairy cattle that has also infected a small number of humans. The states are chiefly responsible for testing cows and people for the virus, but they take different approaches. Scientists tracking bird flu are […] Read more
Canadian genomic option coming for non-herdbook dairy breeders
Testing will still be done in the United States
Canadian dairy breeders may be able to acquire genomic evaluations within Canada later this year for domestically bred cows not registered in national breed association herdbooks. Why it matters: The change will allow all Canadian-born dairy cattle to receive a genomic evaluation based on Canadian calculations. The proposed change was outlined by Lactanet chief services […] Read more
Owner-sampled dairy cattle herds will see earlier genetic evaluations
Lactanet proposes move to monthly official evaluations for Canadian cows in early 2025
More dairy cows in Canada may have the potential to achieve top-rated status in publicly released genetic rankings, thanks to a change being introduced by the Lactanet organization in early 2025. The change will be of particular benefit to herds in which monthly milk samples are collected unsupervised by the herd owner. Why it matters: […] Read more
Cattle Scan’s bolus system wins pitch competition
It took five minutes for ag-tech startup founder Denis Tokarev to secure a $10,000 prize at a recent “pitch competition” in Calgary, but he hopes the buzz generated by the award as well as his networking with dairy sector stakeholders while in Alberta will eventually lead to a bigger payback for Guelph-based Cattle Scan. Inventures […] Read more
Dutch farmer separates nitrogen from manure to fertilize crops
Process reduces manure hauling, produces usable heat and electricity for Dutch farm
Ton Groot Roessink milks about 200 cows near Baak, using robots, automated feeding and automated manure cleaning. Manure from the farm is put through a biogas digester. The methane is burned to produce electricity and heat for the farm.
Cyber-Savvy Farmer
