Relationships between feeding behaviour and feed intake in dairy cows during early lactation
نویسنده
چکیده
VII CHAPTER 1: Introduction 1 CHAPTER 2: Background 3 2.1 Feed intake in transition period 5 2.2 Regulation of feed intake 7 2.3 Feeding behaviour 14 2.4 Measuring of feeding behaviour 16 2.5 Physiological changes and metabolic disorders during transition period and early lactation 22 2.6 Sensor-based monitoring of feeding behaviour and feed intake as well as metabolic-related production diseases 27 CHAPTER 3: General material and methods 31 3.1 Animals, housing and feeding 31 3.2 Measurements and preparation of data 32 3.3 Laboratory and metabolic status analyses 37 3.4 Statistical analyses 37 CHAPTER 4: Untersuchungen zum Fressverhalten hochleistender Milchkühe in der Frühlaktation 40 4.1 Einführung 41 4.2 Material und Methode 42 4.3 Ergebnisse 44 4.4 Diskussion 53 4.5 Schlussfolgerungen 56 CHAPTER 5: Variations in the feeding behaviour of high-yielding dairy cows in relation to parity during early to peak lactation 57 5.
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