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Thomas Ede
University of British Columbia
7Publications
2H-index
8Citations
Publications 7
Newest
#1Thomas Ede (UBC: University of British Columbia)H-Index: 2
#2Benjamin Lecorps (UBC: University of British Columbia)H-Index: 2
Last.Daniel M. Weary (UBC: University of British Columbia)H-Index: 65
view all 4 authors...
Dairy calves are routinely disbudded by cauterization with a hot iron. To mitigate the intra-operative and initial post-operative pain associated with this procedure some farmers provide calves general and local anesthetics, but it is unknown if the procedure remains aversive. We used a place-conditioning paradigm to assess aversion caused by hot-iron cautery with a local anesthetic compared to a sham procedure. A test area was divided into three equally sized pens: two ‘treatment’ pens with dis...
2 CitationsSource
#1Thomas Ede (UBC: University of British Columbia)H-Index: 2
#2Benjamin Lecorps (UBC: University of British Columbia)H-Index: 2
Last.Daniel M. Weary (UBC: University of British Columbia)H-Index: 65
view all 4 authors...
ABSTRACT Affective states, which refer to feelings or emotions, are a key component of animal welfare, but these are also difficult to assess. Drawing upon a body of theoretical and applied work, we critically review the scientific literature on the assessment of affective states in animals, drawing examples where possible from research on dairy cattle, and highlighting the strengths and weaknesses of scientific methods used to assess affective states in animals. We adopt the “valence/arousal” f...
1 CitationsSource
#1Thomas Ede (UBC: University of British Columbia)H-Index: 2
#2Marina A. G. von Keyserlingk (UBC: University of British Columbia)H-Index: 20
Last.Daniel M. Weary (UBC: University of British Columbia)H-Index: 65
view all 3 authors...
Pain in animals is typically assessed using reflexive and physiological responses. These measures allow inferences regarding nociception but provide little basis for conclusions about the affective...
Source
#1Thomas Ede (UBC: University of British Columbia)H-Index: 2
#2M.A.G. von Keyserlingk (UBC: University of British Columbia)H-Index: 46
Last.Daniel M. Weary (UBC: University of British Columbia)H-Index: 65
view all 3 authors...
Abstract Intramuscular (IM) injections may be more aversive than subcutaneous (SC) and intra-nasal (IN) routes. Xylazine is commonly used as a sedative for cattle, but little is known about efficacy via these routes. The first aim of this study was to compare efficacy using these different routes of administration. The second aim was to determine whether a simple behavioural assessment was associated with physiological responses. Using a within-subject design, the effects of xylazine (0.2 mg/kg)...
Source
#1Thomas Ede (UBC: University of British Columbia)H-Index: 2
#2M.A.G. von Keyserlingk (UBC: University of British Columbia)H-Index: 46
Last.Daniel M. Weary (UBC: University of British Columbia)H-Index: 65
view all 3 authors...
Source
#1Thomas Ede (UBC: University of British Columbia)H-Index: 2
#2Marina A. G. von Keyserlingk (UBC: University of British Columbia)H-Index: 20
Last.Daniel M. Weary (UBC: University of British Columbia)H-Index: 65
view all 3 authors...
We assessed aversion to injections using an avoidance-learning paradigm. Holstein calves (n = 24) were randomly assigned to one of four routes of administration for 0.5 ml of saline: intramuscular (IM), intranasal (IN), subcutaneous (SC) and a null control. Calves were first trained to approach a milk reward of 1 L. Once the latency to approach the reward was consistent, calves received their assigned treatment when approaching the bottle. For the first 3 treatment sessions calves received a 1 L...
4 CitationsSource
#1Adam Shriver (UBC: University of British Columbia)H-Index: 5
#2Thomas Ede (UBC: University of British Columbia)H-Index: 2
Last.Joyce Sato-Reinhold (UBC: University of British Columbia)H-Index: 1
view all 4 authors...
1 CitationsSource
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