Search Results - "Wathes, C M"

Is precision livestock farming an engineer's daydream or nightmare, an animal's friend or foe, and a farmer's panacea or pitfall? by Wathes, C.M., Kristensen, H.H., Aerts, J.-M., Berckmans, D.

“…This paper reviews the development of precision livestock farming (PLF), from the view point of the engineer, the farm animal and the farmer; PLF is the…”
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Can domestic fowl, Gallus gallus domesticus, show self-control? by Abeyesinghe, S.M., Nicol, C.J., Hartnell, S.J., Wathes, C.M.

“…An important aspect of cognition is whether animals live exclusively in the present or can anticipate the future. Defined as self-control, the ability to…”
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Chronic ammonia exposure does not influence hepatic gene expression in growing pigs by Cheng, Z., O’Connor, E. A., Jia, Q., Demmers, T. G. M., Wathes, C. M., Wathes, D. C.

“…Housed pigs are often exposed to elevated concentrations of atmospheric ammonia. This aerial pollutant is widely considered to be an environmental stressor…”
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A novel telemetric logging system for recording physiological signals in unrestrained animals by Lowe, J.C., Abeyesinghe, S.M., Demmers, T.G.M., Wathes, C.M., McKeegan, D.E.F.

“…A novel, dual mode telemetric logging system to monitor, transmit and record physiological waveforms (electrocardiogram ECG, electroencephalogram EEG and…”
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Spectral sensitivity of the domestic fowl (Gallus g. domesticus) by Prescott, N.B, Wathes, C.M

“…1. The spectral sensitivity of 7 broiler fowl was determined in a behavioral test. 2. Initially the birds were trained to receive a food reward by pecking at a…”
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Environmental impacts and sustainability of egg production systems by Xin, H, Gates, R.S, Green, A.R, Mitloehner, F.M, Moore, P.A. Jr, Wathes, C.M

“…As part of a systemic assessment toward social sustainability of egg production, we have reviewed current knowledge about the environmental impacts of egg…”
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Ammonia emissions from two mechanically ventilated UK livestock buildings by Demmers, T.G.M., Burgess, L.R., Short, J.L., Phillips, V.R., Clark, J.A., Wathes, C.M.

“…Ammonia emission rates from livestock buildings are required to construct an accurate emission inventory for the UK. Ventilation and ammonia emission rates…”
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Concentrations and emission rates of aerial ammonia, nitrous oxide, methane, carbon dioxide, dust and endotoxin in UK broiler and layer houses by Wathes, C. M., Holden, M. R., Sneath, R. W., White, R. P., Phillips, V. R.

“…1. A survey of the concentration and emission rates of aerial ammonia, nitrous oxide, methane, carbon dioxide, dust and endotoxin was undertaken in 4 examples…”
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Dynamic Data-based Modelling of Heat Production and Growth of Broiler Chickens: Development of an Integrated Management System by Aerts, J.-M, Wathes, C.M, Berckmans, D

“…An application of modern process control techniques to poultry production is outlined. Compact dynamic data-based models are proposed to describe and control…”
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The use of olfactory and other cues for social recognition by juvenile pigs by Kristensen, H.H, Jones, R.B, Schofield, C.P, White, R.P, Wathes, C.M

“…Social recognition is essential for the maintenance of a stable group structure. Failure to recognise familiar conspecifics in social groups of juvenile pigs…”
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The aversion of broiler chickens to concurrent vibrational and thermal stressors by Abeyesinghe, S.M, Wathes, C.M, Nicol, C.J, Randall, J.M

“…The requirement for assessing the effects of multiple concurrent stressors in improving the welfare of broiler chickens during transport has not been widely…”
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Clinical and pathological responses of weaned pigs to atmospheric ammonia and dust by Done, S. H., Chennells, D. J., Gresham, A. C. J., Williamson, S., Hunt, B., Taylor, L. L., Bland, V., Jones, P., Armstrong, D., White, R. P., Demmers, T. G. M., Teer, N., Wathes, C. M.

“…Nine hundred and sixty weaned pigs were exposed for five weeks to controlled concentrations of atmospheric ammonia and dust in a single, multifactorial…”
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A review of livestock monitoring and the need for integrated systems by Frost, A.R., Schofield, C.P., Beaulah, S.A., Mottram, T.T., Lines, J.A., Wathes, C.M.

“…Developments in sensor technology which have taken place, and which are in progress or can be foreseen, will make available increasing amounts of information…”
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Physiological and behavioral responses of poultry exposed to gas-filled high expansion foam by McKeegan, D E F, Reimert, H G M, Hindle, V A, Boulcott, P, Sparrey, J M, Wathes, C M, Demmers, T G M, Gerritzen, M A

“…Disease control measures require poultry to be killed on farms to minimize the risk of disease being transmitted to other poultry and, in some cases, to…”
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Thermal balance of livestock: 1. A parsimonious model by Turnpenny, J.R, McArthur, A.J, Clark, J.A, Wathes, C.M

“…A mathematical model based on the physics of heat transfer was developed to predict the components of heat loss from a homeothermic animal in relation to…”
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First experiences with methods to measure ammonia emissions from naturally ventilated cattle buildings in the U.K by Demmers, T.G.M, Burgess, L.R, Short, J.L, Phillips, V.R, Clark, J.A, Wathes, C.M

“…A method has been developed to measure the emission rate of ammonia from naturally ventilated U.K. livestock buildings. The method is based on measurements of…”
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Thermal balance of livestock: 2. Applications of a parsimonious model by Turnpenny, J.R, Wathes, C.M, Clark, J.A, McArthur, A.J

“…A mathematical model developed from heat transfer principles to predict the thermal status of a homeotherm was applied to sheep and cattle outdoors and pigs…”
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Physiological responses of laying hens during whole-house killing with carbon dioxide by McKeegan, D.E.F, Sparks, N.H.C, Sandilands, V, Demmers, T.G.M, Boulcott, P, Wathes, C.M

“…1. Poultry on farms are sometimes required to be killed in an emergency, such as during a disease epidemic, yet none of the available methods are ideal…”
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Dispersal of micro-organisms in commercial defeathering systems by Allen, V.M, Tinker, D.B, Wathes, C.M, Hinton, M.H

“…1. The extent of cross contamination between carcases and the dispersal of micro-organisms to the environs during defeathering was measured in a commercial…”
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Reflective properties of domestic fowl (Gallus g. domesticus), the fabric of their housing and the characteristics of the light environment in environmentally controlled poultry houses by Prescott, N.B, Wathes, C.M

“…1. The light intensity and spectral power distribution in 3 broiler and 6 layer houses were sampled and converted to a measure which takes account of the…”
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