How to improve the hygienic quality of forages for horse feeding

Authors

  • Virginie Séguin,

    1. UMR INRA 950 Ecophysiologie végétale, Agronomie et Nutritions N, C, S, IFR 146 ICORE, Esplanade de la Paix, Université de Caen Basse-Normandie, 14032 Caen Cedex, France
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  • David Garon,

    Corresponding author
    1. GRECAN EA1772- IFR 146 ICORE, Université de Caen Basse-Normandie et Centre François Baclesse, Avenue du Général Harris, 14076 Caen Cedex 05, France
    • GRECAN EA1772-IFR 146 ICORE, Université de Caen Basse-Normandie et Centre François Baclesse, Avenue du Général Harris, 14076 Caen Cedex 05, France.
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  • Servane Lemauviel-Lavenant,

    1. UMR INRA 950 Ecophysiologie végétale, Agronomie et Nutritions N, C, S, IFR 146 ICORE, Esplanade de la Paix, Université de Caen Basse-Normandie, 14032 Caen Cedex, France
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  • Caroline Lanier,

    1. GRECAN EA1772- IFR 146 ICORE, Université de Caen Basse-Normandie et Centre François Baclesse, Avenue du Général Harris, 14076 Caen Cedex 05, France
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  • Valérie Bouchart,

    1. Laboratoire Départemental Frank Duncombe, Conseil Général du Calvados, 14053 Caen cedex 4, France
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  • Yves Gallard,

    1. Unité Expérimentale INRA du Pin, Domaine du Pin-au-Haras, 61310 Exmes, France
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  • Benoît Blanchet,

    1. Unité Expérimentale INRA du Pin, Domaine du Pin-au-Haras, 61310 Exmes, France
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  • Sylvain Diquélou,

    1. UMR INRA 950 Ecophysiologie végétale, Agronomie et Nutritions N, C, S, IFR 146 ICORE, Esplanade de la Paix, Université de Caen Basse-Normandie, 14032 Caen Cedex, France
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  • Emmanuelle Personeni,

    1. UMR INRA 950 Ecophysiologie végétale, Agronomie et Nutritions N, C, S, IFR 146 ICORE, Esplanade de la Paix, Université de Caen Basse-Normandie, 14032 Caen Cedex, France
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  • Alain Ourry

    1. UMR INRA 950 Ecophysiologie végétale, Agronomie et Nutritions N, C, S, IFR 146 ICORE, Esplanade de la Paix, Université de Caen Basse-Normandie, 14032 Caen Cedex, France
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Abstract

BACKGROUND: Improving the hygienic quality of forages for horse nutrition seems to be a reasonable target for decreasing the prevalence of pulmonary diseases. The aim of the experiment was to study the effects of different agricultural practices on the main aero-allergens contained in forages, including breathable dust, fungi, mycotoxins and pollens.

RESULTS: Results showed that the late harvest of hay, a second crop or a haylage production provides a good alternative to increase hygienic quality by reducing fungi contamination and breathable dust content. Barn drying of hay, while having no effect on breathable dust, similarly reduced fungi contamination. In contrast, when hay was harvested at a lower dry mass content (750 g DM kg−1 versus 850 g DM kg−1), both breathable dust and fungi contaminations were increased, which could at least be reversed by adding propionic acid just before baling. Zearalenone was detected in different hays, and even in one case, in breathable dust.

CONCLUSION: Overall, our data suggest that different approaches can be used to increase forage hygienic quality for horse feeding and thus reduce their exposure to factors involved in equine pulmonary disease. Copyright © 2011 Society of Chemical Industry

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