T
Trevor J. DeVries
Researcher at University of Guelph
Publications - 207
Citations - 6731
Trevor J. DeVries is an academic researcher from University of Guelph. The author has contributed to research in topics: Total mixed ration & Milking. The author has an hindex of 42, co-authored 184 publications receiving 5556 citations. Previous affiliations of Trevor J. DeVries include University of British Columbia & Agriculture and Agri-Food Canada.
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Stocking density and feed barrier design affect the feeding and social behavior of dairy cattle.
TL;DR: Cows ranked lower in the social hierarchy at the feed bunk were displaced more often when feeding at a post-and-rail barrier, particularly at high stocking densities, and use of a barrier that provides some physical separation between adjacent cows, such as a headlock feed barrier, can be used to further reduce competition at theFeed bunk.
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Effect of feeding space on the inter-cow distance, aggression, and feeding behavior of free-stall housed lactating dairy cows.
TL;DR: Results indicate that increasing space allowance at the feeder increases feeding activity and reduces competition among lactating dairy cows.
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Frequency of feed delivery affects the behavior of lactating dairy cows.
TL;DR: The results indicate that frequent delivery of feed improves access to feed for all cows, particularly during peak feeding periods when fresh feed is provided, and reduces the amount of feed sorting.
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Time of Feed Delivery Affects the Feeding and Lying Patterns of Dairy Cows
TL;DR: It is indicated that the delivery of fresh feed has a greater impact on stimulating feeding behavior than does the return from milking and that changes in feeding management can affect both the feeding and lying behavior of dairy cows.
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Measuring the feeding behavior of lactating dairy cows in early to peak lactation.
TL;DR: The results illustrate that some measures of feeding behavior are highly repeatable within cows, but variable between cows and across stages of lactation, and tests of treatment effects on feeding behavior should be within cow and control for days in milk.