Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/55479
Title: Characterization of poultry house dust using chemometrics and scanning electron microscopy imaging
Contributor(s): Ahaduzzaman, Md  (author); Milan, Luke  (author)orcid ; Morton, Christine L  (author)orcid ; Gerber, Priscilla F  (author)orcid ; Walkden-Brown, Stephen W  (author)orcid 
Publication Date: 2021-07
Early Online Version: 2021-04-20
Open Access: Yes
DOI: 10.1016/j.psj.2021.101188
Handle Link: https://hdl.handle.net/1959.11/55479
Abstract: 

Poultry house dust is composed of fine particles which likely originate from a diverse range of materials such as feed, litter, excreta, and feathers. Little is known about the contribution of these sources to broiler house airborne dust so the present study was designed to identify the relative contributions of these sources. Samples of feed, excreta, feather, and bedding, known mixtures of these and settled dust from 28 broiler chicken flocks were tested for the concentration of 18 chemical elements. A chemometrics approach (the application of multivariate statistical techniques to chemical analysis data) was used to identify the primary source material in broiler chicken house dust samples. Scanning electron microscopy (SEM) was also used to analyze dust sample particulates based on examination of source materials. Excreta was found to be the main component of broiler chicken house dust, both by SEM and chemometric analysis. SEM of experimental flock dust between 7 and 35 days of age (d) revealed that the contribution of excreta to dust increased with age from 60% at 7 d to 95% at 28 d (P < 0.001). The proportion of bedding and feed in dust declined with age while the contribution of feather material remained low throughout. This study demonstrates that excreta provides the bulk of the material in poultry dust samples with bedding material, feed and feather material providing lower proportions. The relative contributions of these materials to dust varies with age of birds at dust collection. Additional research is required to determine the health and diagnostic implications of this variation.

Publication Type: Journal Article
Source of Publication: Poultry Science, 100(7), p. 1-11
Publisher: Elsevier BV
Place of Publication: The Netherlands
ISSN: 1525-3171
0032-5791
Fields of Research (FoR) 2020: 300914 Veterinary virology
370302 Inorganic geochemistry
370505 Mineralogy and crystallography
Socio-Economic Objective (SEO) 2020: 100411 Poultry
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Environmental and Rural Science

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