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Effect of ionization, bedding, and feeding on air quality in a horse stable.
J Vet Intern Med. 2018 May; 32(3):1234-1240.JV

Abstract

BACKGROUND

Organic dust is associated with Equine asthma. Ionization should reduce airborne dust levels.

OBJECTIVES

To determine the effect of ionization of air, type of bedding, and feed on the levels of airborne dust, endotoxin, and fungal colonies in horse stables.

ANIMALS

24 healthy University-owned horses occupied the stables.

METHODS

A randomized controlled cross-over study. Four units with 6 stables were equipped with an ionization installation (25 VA, 5000 Volt Direct Current). Horses were kept either on wood shavings and fed haylage (2 units), or on straw and fed dry hay (2 units). Measurements were performed with and without activated ionization, during daytime and nighttime, repeatedly over the course of a week and repeatedly during 4-6 weeks. Statistical analysis was performed using a mixed effect model with Akaike's Information Criterion for model reduction and 95% profile (log) likelihood confidence intervals (CI).

RESULTS

Ionization did not alter concentrations of dust, endotoxin, or fungi, fewer. In the units with straw and hay, the concentration of dust, endotoxin, and fungi (difference in logarithmic mean 1.92 (95%CI 1.71-2.12); 2.86 (95%CI 2.59-3.14); 1.75 (95%CI 1.13-2.36)) were significantly higher compared to wood shavings and haylage.

CONCLUSIONS AND CLINICAL IMPORTANCE

The installation of a negative air-ionizer in the horse stable did not reduce concentrations of dust, endotoxin, and viable fungal spores. The substantial effect of low dust bedding and feed is confirmed.

Links

Publisher Full Text
ncbi.nlm.nih.gov
doi.org
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Authors+Show Affiliations

Siegers EW
Equine Internal Medicine, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Anthonisse M
Equine Internal Medicine, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
van Eerdenburg FJCM
Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
van den Broek J
Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Wouters IM
Institute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
Westermann CM
Equine Internal Medicine, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.

MeSH

Air IonizationAir Pollution, IndoorAnimal FeedAnimal HusbandryAnimalsBedding and LinensCross-Over StudiesHorsesHousing, Animal

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

29485234

Citation

Siegers, Esther Willemijn, et al. "Effect of Ionization, Bedding, and Feeding On Air Quality in a Horse Stable." Journal of Veterinary Internal Medicine, vol. 32, no. 3, 2018, pp. 1234-1240.
Siegers EW, Anthonisse M, van Eerdenburg FJCM, et al. Effect of ionization, bedding, and feeding on air quality in a horse stable. J Vet Intern Med. 2018;32(3):1234-1240.
Siegers, E. W., Anthonisse, M., van Eerdenburg, F. J. C. M., van den Broek, J., Wouters, I. M., & Westermann, C. M. (2018). Effect of ionization, bedding, and feeding on air quality in a horse stable. Journal of Veterinary Internal Medicine, 32(3), 1234-1240. https://doi.org/10.1111/jvim.15069
Siegers EW, et al. Effect of Ionization, Bedding, and Feeding On Air Quality in a Horse Stable. J Vet Intern Med. 2018;32(3):1234-1240. PubMed PMID: 29485234.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of ionization, bedding, and feeding on air quality in a horse stable. AU - Siegers,Esther Willemijn, AU - Anthonisse,Milou, AU - van Eerdenburg,Frank J C M, AU - van den Broek,Jan, AU - Wouters,Inge M, AU - Westermann,Cornélie Martine, Y1 - 2018/02/27/ PY - 2017/05/28/received PY - 2017/11/12/revised PY - 2018/01/18/accepted PY - 2018/2/28/pubmed PY - 2018/10/3/medline PY - 2018/2/28/entrez KW - airborne KW - dust KW - endotoxin KW - fungi SP - 1234 EP - 1240 JF - Journal of veterinary internal medicine JO - J Vet Intern Med VL - 32 IS - 3 N2 - BACKGROUND: Organic dust is associated with Equine asthma. Ionization should reduce airborne dust levels. OBJECTIVES: To determine the effect of ionization of air, type of bedding, and feed on the levels of airborne dust, endotoxin, and fungal colonies in horse stables. ANIMALS: 24 healthy University-owned horses occupied the stables. METHODS: A randomized controlled cross-over study. Four units with 6 stables were equipped with an ionization installation (25 VA, 5000 Volt Direct Current). Horses were kept either on wood shavings and fed haylage (2 units), or on straw and fed dry hay (2 units). Measurements were performed with and without activated ionization, during daytime and nighttime, repeatedly over the course of a week and repeatedly during 4-6 weeks. Statistical analysis was performed using a mixed effect model with Akaike's Information Criterion for model reduction and 95% profile (log) likelihood confidence intervals (CI). RESULTS: Ionization did not alter concentrations of dust, endotoxin, or fungi, fewer. In the units with straw and hay, the concentration of dust, endotoxin, and fungi (difference in logarithmic mean 1.92 (95%CI 1.71-2.12); 2.86 (95%CI 2.59-3.14); 1.75 (95%CI 1.13-2.36)) were significantly higher compared to wood shavings and haylage. CONCLUSIONS AND CLINICAL IMPORTANCE: The installation of a negative air-ionizer in the horse stable did not reduce concentrations of dust, endotoxin, and viable fungal spores. The substantial effect of low dust bedding and feed is confirmed. SN - 1939-1676 UR - https://www.unboundmedicine.com/medline/citation/29485234/Effect_of_ionization_bedding_and_feeding_on_air_quality_in_a_horse_stable_ L2 - https://doi.org/10.1111/jvim.15069 DB - PRIME DP - Unbound Medicine ER -