The objective of this study was to assess the effect of clinoptilolite (a natural zeolite) on growth and performance of broilers as well as on the quality of their litter. A total of 5,200 one-day old broiler chickens (Cobb 500) were used in two consecutive rounds lasting 42 days each. The broilers were given free and continuous access to a nutritionally non-limiting diet (in meal form) that wa...

Foot-pad dermatitis is a major welfare concern of broilers caused by ammonia irritation from the bedding material. In Denmark, an action plan to control the condition was implemented in 2002 with monitoring through a foot scoring system at slaughter and with predefined limits that trigger sanctions. The objective of the present study was to study time trends and to identify predisposing factors...

Rebreathing of expired air may be a lethal hazard for prone sleeping infants. This paper describes a mechanical model to simulate infant breathing, and examines the effects of bedding on exhaled air retention. Under simulated rebreathing conditions, the model allows the monitoring of raised carbon dioxide (CO2) inside an artificial lung-trachea system. Resulting levels of CO2 (although probably...

How do I enrol? You must first arrange a supervisor and a project. Once you have reached an agreement with your supervisor, please complete a Special Permission form (available from the Student Support Office in Physics). This must be signed by the Senior Physics Coordinator (Tim Bedding, Room 558, [email protected]) and then taken to the Science Faculty Office (Carslaw) to allow you ...

A two-phase DLSM model is proposed to model transverse isotropic materials, in which the layer structure of the anisotropic materials is explicitly represented. Equations are derived to obtain elastic parameters of the two phase model from the elastic modules in parallel to the bedding planes and that in normal direction of the bedding planes. Then, the mechanical properties of the two-phase DL...

To test the hypothesis that airborne microbial cell wall components could induce an inflammatory response in the lungs, measurements were made of the amounts of bacterial endotoxin and (1-->3)-beta-D-glucan in laboratory animal bedding materials. Groups of rats were exposed by inhalation to airborne endotoxin, (1-->3)-beta-D-glucan or a combination of the two for 5 weeks. The results demonstrat...

Guzik, J., Houdek, G., Chaplin, W., Smalley, B., Kurtz, D., Gilliland, R., Mullally, F., Rowe, J., Bryson, S., Still, M., Bedding, T., Benomar, O., Huber, D., White, T., Murphy, S., Stello, D., et al (2016). Detection Of Solar-Like Oscillations, Observational Constraints, And Stellar Models For Theta Cyg, The Brightest Star Observed By The Kepler Mission. The Astrophysical Journal, 831(1), 1-22...

Guzik, J., Houdek, G., Chaplin, W., Smalley, B., Kurtz, D., Gilliland, R., Mullally, F., Rowe, J., Bryson, S., Still, M., Bedding, T., Benomar, O., Huber, D., White, T., Murphy, S., Stello, D., et al (2016). Detection Of Solar-Like Oscillations, Observational Constraints, And Stellar Models For Theta Cyg, The Brightest Star Observed By The Kepler Mission. The Astrophysical Journal, 831(1), 1-22...