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HERD HEALTH

Find information about mastitis, transition cows, vaccination protocols, working with your veterinarian, hoof care and hoof trimming.

LATEST

The transition from late pregnancy to lactation requires enormous physiological adaptations from the dairy cow. One of the most important changes that occurs involves the balance of calcium.

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Dairy cows are most susceptible to infectious diseases, such as mastitis and metritis, during early lactation. All animals on a dairy are being exposed to micro-organisms every day; however, most of them do not become clinically diseased.

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Proper management of animal mortalities on livestock operations has important implications in nutrient management, herd and flock health, as well as the health of farm families and public health.

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Recently, I was asked to investigate a spike in clinical mastitis cases on a dairy that I knew used excellent sanitation practices.

Surprisingly, the cause turned out to be rather simple: a relief milker not wearing milking gloves.

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Housing systems that cause disease or injuries to animals are clearly undesirable. Injury and disease compromise dairy cow welfare and can reduce longevity and production.

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The University of Guelph has just completed the data collection phase of a large study designed to increase understanding of clinical and subclinical pneumonia and its long-term effects in dairy calves through the use of ultrasonography.

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