Farm- and Cow-Level Effects on the Behavioral Patterns of Dairy Cows Milked with Automatic Systems

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Farm- and Cow-Level Effects on the Behavioral Patterns of Dairy Cows Milked with Automatic Systems

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dc.contributor.advisor DeVries, Trevor
dc.contributor.author Deming, Justine Adams
dc.date 2012-06-04
dc.date.accessioned 2012-06-11T14:36:38Z
dc.date.available 2012-06-11T14:36:38Z
dc.date.issued 2012-06-11
dc.identifier.uri http://hdl.handle.net/10214/3700
dc.description.abstract The objective of this thesis was to determine the effect of housing and feeding management and cow characteristics on the behavioral patterns of cows in automated milking systems (AMS). In a first study, increasing frequency of feed delivery from 1 to 2x/d for cows milked in an AMS resulted in longer lying duration. In that study, lame cows milked less frequently, had increased lying durations and more frequent lying bouts. In a second, cross-sectional study of 13 AMS farms it was found that cows had longer lying durations when given more space at the feed bunk and when their feed was pushed up more frequently. Milking frequency increased as cows/AMS decreased. Milk yield increased with space at the feed bunk. Overall, these results suggest that feeding management, robot and bunk-space availability, and health status affect the behavior and production of AMS-milked cows. en_US
dc.description.sponsorship Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) and the Canadian Bovine Mastitis Research Network (CBMRN) en_US
dc.language.iso en en_US
dc.subject AMS Dairy Cow Behavior Feeding Management en_US
dc.title Farm- and Cow-Level Effects on the Behavioral Patterns of Dairy Cows Milked with Automatic Systems en_US
dc.type Thesis en_US
dc.degree.programme Animal and Poultry Science en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Animal and Poultry Science en_US


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