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Hay for horses: the effects of three different wetting treatments on dust and nutrient content

  • M. Blackman (a1) and M. J. S. Moore-Colyer (a2)

Five bales were randomly chosen from a stack of 6-month-old barn-stored hay. Four 2·5-kg sections were taken from each bale and subjected to one of four different water wetting treatments, 0-min soak, 10-min soak, 30-min soak and 80-min steaming. Post wetting, the sections were shaken for 9 min under a Negretti LS45F personal dust sampler which sucked-in any particles released into the surrounding air. The sampler contents were then analysed for respirable particle numbers (particles < 5um), and the hay subsampled and analysed for water-soluable carbohydrate, N, Na, K, Ca, P, Mg, Zn, Mn, Fe and Cu. The steaming and soaking treatments all proportionately reduced respirable particle numbers by more than 0·93 of those present in the dry hay. Soaking for 10 min and 30 min significantly reduced levels of P, K, Mg, Na and Cu, whereas the steamed samples showed no loss of nutrients from the levels present in the dry hay. Thus in terms of reducing respirable particle numbers and conserving nutrient levels, steaming for 80 min is the most effective treatment when preparing hay fodder for horses.

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Clarke, A. F. 1986. Air hygiene of stables and chronic obstructive pulmonary disease. Ph.D. thesis, University of Bristol.
Clarke, A. 1987. A review of environmental and host factors in relation to equine respiratory disease. Equine Veterinary Journal 19: 435441.
Clarke, A. 1992. Environmental monitoring in relation to equine respiratory disease. In Current therapy in equine medicine, third edition, (ed. Robinson, N. E.), pp. 310315. W. B. Saunders, Philadelphia.
Eduard, W., Lacey, J., Karlsson, K., Palmgren, U., Strom, G. and Blomquist, G. 1988. Monitoring airborne micro-organisms in the occupational environment. Harmonization of sampling and analysis of mould spores — Nordisk Ministerrad no. 1.
Eduard, W., Lacey, J., Karlsson, K., Palmgren, U. and Blomquist, G. 1990. Evaluation of methods for enumerating microorganisms in filter samples from highly contaminated occupational environments. American Industrial Hygiene Association 51: 427436.
Faithfull, N. T. 1971. Automated simultaneous determination of nitrogen, phosphorus, potassium and calcium on the same herbage digest solution. Laboratory Practice 20: 4144.
Faithfull, N. T. 1974. Analysis of magnesium in Kjeldahl digests of herbage by atomic-absorption spectrophotometry with the nitrous oxide-acetylene flame. Laboratory Practice 23: 177178.
Frape, D. 1986. Equine nutrition and feeding. Longman Scientific and Technical, Edinburgh.
Gregory, P. H. and Lacey, M. E. 1963. Mycological examination of dust from mouldy hay associated with farmer's lung disease, journal of General Microbiology 30: 7588.
Gregory, P. H., Lacey, M. E., Fenstenstein, G. W. and Skinner, F. A. 1963. Liberation of spores from mouldy hay. Transactions of the British Mycological Society 46: 7380.
Lacey, J. 1990. Aeriobiology and health: the role of airborne fungal spores in respiratory disease. In Frontiers in mycology (ed. Hawksworth, D. L.). CAB International.
Lacey, J. and Dutkiewicz, J. 1976. Methods for examining the microflora of mouldy hay. Journal of Applied Bacteriology 41: 1327.
Lacey, J. and Vince, D. A. 1972. Endospore development and germination in a new Thermoactinomyces species. In Spore research (ed. Barker, A. N., Gould, G. W., Wolf, J.), pp. 181187. Academic Press, London.
Lawson, G. H. K., McPherson, E. A., Murphy, J. R., Nicholson, J. M., Wooding, P., Breeze, R. G. and Pirie, H. M. 1979. The presence of precipitating antibodies in the sera of horses with COPD. Equine Veterinary Journal 11: 172178.
McGorum, B. C., Dixon, P. M. and Halliwell, R. E. W. 1993. Responses of horses affected with COPD to inhalation challenges with mould antigens. Equine Veterinary Journal 25: 261267.
McPherson, E. A. and Thomas, J. R. 1983. C.O.P.D. in the horse. 1. Nature of the disease. Equine Veterinary Journal 15: 203207.
Ministry of Agriculture, Fisheries and Food. 1992. Feed composition. UK tables of feed composition and nutritive value for ruminants, second edition. Chalcomb Publications.
Moore-Colyer, M. J. S. 1996. Effects of soaking hay fodder for horses on dust and mineral content. Animal Science 63: 337342.
National Research Council. 1989. Nutrient requirements of horses, fifth edition. National Academy Press, Washington DC.
Sheppard, J. A. 1994. An investigation into managing respirable dust in equine environments. M.Sc. thesis, University of Wales, Aberystwyth.
Thomas, T. A. 1977. An automated procedure for the determination of soluble carbohydrates in herbage. Journal of the Science and Food and Agriculture 28: 639642.
Tizard, I. R. 1977. An introduction to veterinary immunology. W.B. Saunders, London.
Warr, E. and Petch, J. 1992. Effects of soaking hay on its nutritional quality. Equine Veterinary Education 5: 169171.
Wilman, D., Acuna, G. H. and Michaud, P. J. 1994. Concentrations of N, P, K, Ca, Mg, and Na in perennial ryegrass and white clover leaves of different ages. Grass and Forage Science 49: 422428.
Wise, D. R. 1987. Nutrition of horses. In Horse management, second edition (ed. Hickman, J.), pp. 175202. Academic Press, London.
Woods, P. S. A., Robinson, N. E., Swanson, M. C., Reed, C. E., Broadstone, R. V. and Derksen, F. J. 1993. Airborne dust and aeroallergen concentration in a horse stable under two different management systems. Equine Veterinary Journal 25: 208213.
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Animal Science
  • ISSN: 1357-7298
  • EISSN: 1748-748X
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