Research Phd Theses

Mastitis is an inflammation of the mammary gland that can result in an elevated somatic cell count (SCC). It is mainly caused by intramammary infections (IMI). Cows with mastitis can have clinical signs (clinical mastitis) or no clinical signs (subclinical mastitis). Because subclinical IMI are the commonest cause of subclinicalRead more

This thesis was undertaken to better understand mastitis and milk quality in Rwanda. Dairy cows have a great cultural and economic importance in Rwanda, where most of the milk is produced by small-holder farmers. Milk has been recognized to be important for the nutritional status of young children and forRead more

In emerging dairy chains, such as in Tanzania, multiple intervention support programs have been implemented. The objectives of this research were to explore the structure of existing support programs and how they are perceived, and to develop tools that can help to precisely position safety and hygiene control practice toRead more

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

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

Many cows will experience mastitis during a lactation cycle, with some undergoing recurrent episodes in a single mammary quarter. The initial focus of our research was the effect of intramammary casein hydrolysate (CH) administered to single mammary quarters of dairy cows mid-lactation in comparison with a placebo (P) or noRead more

In the dairy sector, it has been common practice to systemically dry off cows with long-acting antimicrobials

The genus Staphylococcus contains at least 47 species and 23 subspecies. Bacteria in this genus are ubiquitous; many are commensals on human and animal skin and can be opportunistic pathogens.