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Skip to Search Results- 4Feddes, John J. R.
- 2Cook, Nigel J.
- 2Schaefer, Allan L.
- 2Zuidhof, Martin J.
- 1Bench, Clover J.
- 1Chabot, B.
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1992
Feddes, John J. R., Zuidhof, Martin J., Cook, H.
A single barn was sampled throughout a turkey growth cycle to investigate the size and distribution of airborne particles and to identify individual dust sources. Fecal material was found to be the main constituent of airborne dust in turkey barns. The aerodynamic properties of airborne dust and...
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Development of a metabolic calorimeter system to measure heat production of domestic avian embryos during incubation
Download2006
Feddes, John J. R., Segura, J. C., Ouellette, C. A., Zuidhof, Martins J., Fasenko, Gaylene M.
A metabolic calorimeter system was developed to facilitate collection of metabolic data from 24 embryos within an incubator. The system was designed to monitor carbon dioxide (CO2 ), oxygen, and water vapour over a 2.5-minute period every hour from each metabolic chamber during both the...
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1995
Perkins, S., Zuidhof, Martin J., Feddes, John J. R., Robinson, Frank E.
Four environmental chambers housing either 75 (5.5 birds/m\") or 37 turkeys (2.8 birds/m ) were used to study the impact of stocking density on air quality, bird health, and performance under similar per bird ventilation rates (3 L/s per bird). Stocking density had little effect on air quality or...
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Infrared thermography detects febrile and behavioural responses to vaccination of weaned piglets
Download2015
Bench, Clover J., Schaefer, Allan L., Cook, Nigel J., Lui, T., Chabot, B.
An automated, non-invasive system for monitoring of thermoregulation has the potential to mitigate swine diseases through earlier detection. Measurement of radiated temperature of groups of animals by infrared thermography (IRT) is an essential component of such a system. This study reports on...
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Minimally-invasive assessments of the behavioural and physiological effects of enriched colony cages on laying hens
Download2011
Korver, Doug R., Schaefer, Allan L., Cook, Nigel J., Feddes, John J. R., Church, John S., Haley, Derek B.
The well-being of laying hens in cages of 5, 10, 20 and 40-birds/cage, and enrichment with perches, nest boxes and scratch pads, was assessed using behavioral and physiological parameters. Laying hens were Lohmann Brown (n = 360) and White Leghorns (n = 360), housed from 17 to 65 weeks of age....