A5011983982- Animal health and immunology
- Effects of Environmental Stressors on Livestock
- Animal Behavior and Welfare Studies
- Reproductive Physiology in Livestock
- Milk Quality and Mastitis in Dairy Cows
- Agriculture and Farm Safety
- Viral gastroenteritis research and epidemiology
- Animal Disease Management and Epidemiology
- Smart Materials for Construction
- Infant Nutrition and Health
- Genetic and phenotypic traits in livestock
University of Guelph
2023-2025
Aarhus University
2022-2024
University of British Columbia
2021-2022
This observational study evaluated the relationship between lung consolidation observed at weaning and calf ADG, association of pathogen shedding on ADG in beef × dairy calves up to 238 d. Beef Holstein (n = 143) were sourced from 2 dairies. Calves managed 3 cohorts fed milk replacer starter preweaning. transported another facility after raised one group where they with oat hay transitioned a corn silage-based total mixed ration diet. Calf was calculated arrival 61 ± 14 d (period 1), 83 21...
<h2>ABSTRACT</h2> The objective of this study was to assess the effects intake-based weaning methods and forage type on feeding behavior growth dairy calves. Holstein calves (n = 108), housed in 12 groups 9, were randomly assigned 1 3 treatments: milk reduction based age (wean-by-age), individual dry matter intake (DMI; wean-by-intake), or a combination DMI (wean-by-combination). Groups alternately 2 grass hay silage-based total mix ration (TMR; n=6 per treatment). Until 30 d age, all...
Dairy cows are often subjected to multiple post-partum stressors but how these impact cows’ affective states remain poorly understood. Negative associated with reduced expression of low-resilience behaviors, so we explored whether would reduce their use a brush after calving. Before calving, were offered the opportunity mechanical once week for 10 min. In Experiment 1, parturition (compared prepartum values) when myriad typically experienced by at this time. 2, assessed effect cow–calf...
The objective of this diagnostic accuracy study was to develop and validate an alert identify calves at-risk for a diarrhea bout using milk feeding behavior data (behavior) from automated feeders (AMF). We enrolled Holstein (n = 259) as convenience sample size 2 facilities who were health scored daily preweaning offered either 10 or 15 L/d replacer. For development, 132 the ability intake, drinking speed, rewarded visits collected AMF tested. Alerts that had high in development phase...
The objective of this randomized clinical trial was to assess whether early intervention with a nonsteroidal anti-inflammatory drug (NSAID) following disease alert generated by automated milk feeders could reduce diarrhea severity and improve performance in dairy calves. Seventy-one Holstein calves were enrolled on an feeder (recorded intake drinking speed) at 3 d age received up 15 L/d (150 g/L) replacer until 35 age. An that previously validated as diagnostically accurate identify risk for...