Herd Health

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Progress in the Understanding of Hemorrhagic Bowel Syndrome

Source: eXtension Abstract Hemorrhagic bowel syndrome (HBS), a deadly digestive tract disease, has been reported with increasing frequency in adult dairy cows. Cattle affected with HBS usually die within 12 to 36 hours after the onset of clinical disease. Cattle present with acute enteritis and concurrent dehydration and shock, with or without signs of abdominal

Evolution and Dynamics of Bovine Viral Diarrhea Virus (BVDV)

Source: Dairy Research and Extension Consortium of Alberta Dr. Frank van der Meer and Adam Chernick, University of Calgary, Faculty of Veterinary Medicine (UCVM) Why is BVDV important? Among cattle in Canada bovine viral diarrhea virus (BVDV) causes significant financial loss for dairy producers because infections result in immunosuppression which leads to digestive, respiratory and reproductive

Sub-Acute Ruminal Acidosis (SARA) in Dairy Cows

Source: Ontario Ministry of Agriculture, Food and Rural Affairs FACT SHEET written by: T. Mutsvangwa – Research Associate/University of Guelph; T. Wright – Acting Dairy Cattle Nutritionist/OMAFRA Introduction Sub-acute ruminal acidosis (SARA), also known as chronic or sub-clinical acidosis, is a well-recognized digestive disorder that is an increasing health problem in most dairy herds. Results from

Transition Cows and Displaced Abomasums

Source: Manitoba Agriculture Food, and Rural Initiatives The majority of displaced abomasums (DA) occur during the first three weeks after calving. The abomasum is the last of four stomachs found in the ruminant digestive tract. It is similar in function to the single stomach found in monogastrics including humans. The abomasum is found on the lower,

The first 15 minutes: Why they matter to newborn calves

The things human caretakers do — and don’t do — can have a lasting impact on the survival and health of newborn calves. “Events in the first 15 minutes after birth can make a lifetime of difference for newborns,” says Amanda Fordyce, Ph.D., technical calf consultant for Milk Products. Here are six calving do’s to

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BioZyme: how to prevent grass tetany

Source: BioZyme news release The snow might be still be flying throughout much of the country, but it won’t be long before cattle producers are thinking about turning pairs out to pasture. Although that lush green grass seems appealing, there are hidden concerns that producers need to remember when turning out their cows. One of

Issues and Suggestions for Improvements in Reproductive Management of Alberta Dairy Herds

Source: Alberta Agriculture and Forestry, http://www.agric.gov.ab.ca/ Fertility in dairy cows has been declining in Canada and throughout the world. Decreasing conception rates, heat detection rates, and higher cow-to-person ratios on increasingly large farms have all been identified as major issues. To pinpoint problems in Alberta, we monitored 637 cows in 23 herds throughout the province using

What’s the best method for drying-off dairy cows?

Source: Ontario Ministry of Agriculture, Food and Rural Affairs Author: Ann Godkin, Lead Veterinarian/OMAFRA The basic goals of a good dry-off program for all cows remain the same-it should reduce mastitis risk and keep cows comfortable One of producers’ most frequently asked questions at any mastitis seminar is what is the best way to dry off

Starting Calves on Dry Feed

Source: Manitoba Agriculture Food, and Rural Initiatives Calf-raising is an essential part of a dairy operation. The primary goals during the early weeks of a calf’s life are to develop a strong immune system and to stimulate rumen development. If these goals are met, low stress weaning at six weeks of age or less can occur.


Source: Dairy Cattle Hoof Health Whether to bandage or not to bandage after treating digital dematitis (DD) lesions remains controversial. Among hoof trimmers, the most common belief seems to be that bandaging is beneficial as long as the bandage is removed after a few days. The rationale is that leaving it on any longer maintains

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