Herd Health

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Dietary Cation-Anion Difference (DCAD)

Source: Ontario Ministry of Agriculture, Food and Rural Affairs Introduction Milk fever (periparturient paresis) occurs in dairy cattle after calving because of low blood calcium levels as a result of calcium moving into milk. There are about 23 grams of calcium in 10 litres of colostrum, and when this is added to the normal amount

Heifer mastitis prevention and control plan

Source: National Mastitis Council Heifer mastitis is a disease that threatens production and udder health in the first and subsequent lactations. An integrated strategy to prevent and control heifer mastitis should include goal setting, assessment of the current farm systems, application of appropriate farm-specific interventions, and monitoring of outcomes. A heifer mastitis problem is considered

Lallemand: tips to keep performance consistent across seasons

Source: Lallemand news release Often, rations can change seasonally. In fact, it’s common for producers to experience lower butterfat tests and higher numbers of butterfat inversions this time of year.1 These fluctuations are often due to variable starch digestibility of corn silage or high-moisture shell corn (HMSC). Changes in the ration are needed to account

Dry and Close-Up Transition Cow Mineral and Vitamin Nutrition

Source: Ontario Ministry of Agriculture, Food and Rural Affairs The transition from a dry cow to a milking cow is a particularly stressful time for dairy animals. It is important that the nutritional management during this time continues to be as good or better than during lactation. A variety of primary and secondary metabolic problems

Lallemand tips to help calves hit the ground running

Source: Lallemand Animal Nutrition news release After calves are on the ground, one of the most important factors to keep cattle gaining is minimizing health challenges, advises H. Nielsen, DVM, Technical Service – Ruminant, Lallemand Animal Nutrition. “Diseases in calfhood have a major economic impact on cattle operations,” Dr. Nielsen notes. “There are direct losses

Hoof Health and Nutrition

Source: Manitoba Agriculture Food, and Rural Initiatives Many factors affect the health of your cows feet. Management factors such as providing a well drained environment, adequate size stalls, foot baths, annual foot trimming and following recommendations for flooring materials can help reduce feet problems. Some progress can be made through genetic selection but heritability is very

Common Misconceptions About Inbreeding

Source: Canadian Dairy Network Do you really understand inbreeding? Do you know how it accumulates in a population and what determines the inbreeding level of an given animal? Of course, inbreeding must be considered when making mating decisions but are you doing this properly? In reality, the word “inbreeding” often arises in conversations about genetic

Your feeding management practices can directly affect your herd’s milk yields

Source: Ontario Ministry of Agriculture, Food and Rural Affairs Written by: Mario Mongeon, Livestock Specialist/OMAFRA Dairy cow nutrition involves more than just analyzing data and tweaking your herd’s ration, suggested ruminant nutrition expert Dr. Rick Grant during his keynote address at a recent ruminant nutrition conference in the U.S. Dr. Grant, president of The William H.

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

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