#25-2019

Research Phd Theses

Comparing dairy farm performance and heat stress abatement strategies in the United States using summer to winter ratios (S:W ratio)

Heat stress abatement is a challenge for many producers around the world. Dairy producers could benefit by utilizing a simple metric to measure heat stress abatement strategies with the goal of motivating improvement in heat stress management on farm. The summer to winter ratio (S:W ratio) was developed by ExtensionRead more

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Research Phd Theses

The effect of dry period length on milk production, health and fertility in two cow breeds

Dairy cow health and welfare can, with relatively simple and cost-efficient means, be improved by disputing established management practices and make adaptations to the physiology and needs of the modern, high-yielding cow. Presently, it is generally recommended that the dry period covers approximately 8 weeks, but today’s dairy cows areRead more

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Management

My approach to reducing clinical mastitis

This is the first of two articles on approaches to reducing clinical mastitis and somatic cell counts that this author has used for many years. It has proved successful provided the farmer engages in the process. Of course, there are other successful approaches that can be taken. This article willRead more

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Focus

Staphylococcus aureus and bovine mastitis: recent findings

Bovine mastitis is a very common disease in dairy herds worldwide. In Switzerland, the incidence density is 32.7 cases per 100 cow years (Stärk et al., 1997), resulting in total costs of about CHF 130 Mio. per year (Heiniger et al., 2014). Udder diseases are the most common causes forRead more

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