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NEGATIVE ENERGY BALANCE OF DAIRY COWS: ASSOCIATION WITH BEHAVIOR AND MINIMIZING RISK

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Title: NEGATIVE ENERGY BALANCE OF DAIRY COWS: ASSOCIATION WITH BEHAVIOR AND MINIMIZING RISK
Author: Moore, Sydney
Department: Department of Animal Biosciences
Program: Animal and Poultry Science
Advisor: DeVries, Trevor
Abstract: The overall objective of my thesis research was to develop a further understanding of how negative energy balance (NEB) relates to the behavior of dairy cows and how to minimize the risk of NEB in early lactation. In a first study, where cows were diet-induced into a state of NEB, it was demonstrated that greater NEB was associated with greater selection for the more energy-dense components of the diet and against the longer-less energy dense fractions of the diet, especially when fed a diet that is easily sorted. In a second study, it was determined that the supplementation of a molasses-based liquid feed through an automated milking system to fresh cows had a tendency to improve cow metabolic health. Cows receiving the additional energy supplement demonstrated improved energy balance and lost less body condition across the first 60 days in milk.
URI: http://hdl.handle.net/10214/17884
Date: 2020-04
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