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https://hdl.handle.net/1959.11/29328
Title: | Necrotic enteritis challenge and high dietary sodium level affect odorant composition or emission from broilers | Contributor(s): | Sharma, Nishchal K (author) ; Choct, Mingan (author) ; Wu, Shu-Biao (author) ; Swick, Robert A (author) | Publication Date: | 2018-01-01 | Open Access: | Yes | DOI: | 10.3382/ps/pex257 | Handle Link: | https://hdl.handle.net/1959.11/29328 | Abstract: | Necrotic enteritis (NE) challenge and high dietary sodium (from sodium chloride) level on odor flux from broiler litter was investigated using 160 day-old Ross 308 male chicks randomly assigned to 4 dietary treatments with 4 replicates of 10 birds each. A 2 × 2 factorial arrangement of treatments was employed. Factors were: presence or absence of NE challenge and normal (1.6 g/kg) or high (4.0 g/kg) dietary sodium (Na) level. On d 20, odorants were collected from litter headspace with a flux hood and measured using selected ion flow tube mass spectrometry (SIFT-MS). On d 33, while challenge did not lead to higher mortality, it reduced feed intake by 5.48% (P < 0.05) and body weight gain by 9.02% (P < 0.01) and worsened FCR by 5 points (P < 0.01), indicating subclinical necrotic enteritis occurred in challenged birds. Challenge increased (P < 0.01) litter moisture and litter headspace concentrations of dimethyl sulfide (P < 0.05), propyl mercaptan (P < 0.05), total butanols (P < 0.05), acetoin (P < 0.01), skatole (P = 0.05), butyric acid (P < 0.05), and methyl amine (P < 0.05) and tended to increase concentrations of ethyl mercaptan (P = 0.07), carbon disulfide (P = 0.09), indole (P = 0.10), and formic acid (P = 0.10) compared to the unchallenged group. The birds fed a high Na diet produced higher litter moisture (P < 0.01) and higher litter headspace concentration of sulfur compounds and phenol (P < 0.01) compared to those fed a normal Na diet. In the birds fed a high Na diet, challenge increased the litter flux of some additional odorants, which included 2,3-butanedione (P < 0.05), acetic acid (P < 0.01), propionic acid (P < 0.01), isobutyric acid (P < 0.01), isovaleric acid (P < 0.01), pentanoic acid (P < 0.05), 2-butanone (P < 0.05), and 3-methyl-1-butanol (P < 0.05). These findings suggest that both a high Na diet and sub-clinical NE increase the odor nuisance potential of broiler farms. | Publication Type: | Journal Article | Source of Publication: | Poultry Science, 97(1), p. 39-46 | Publisher: | Elsevier BV | Place of Publication: | Netherlands | ISSN: | 1525-3171 0032-5791 |
Fields of Research (FoR) 2008: | 070204 Animal Nutrition 070205 Animal Protection (Pests and Pathogens) |
Fields of Research (FoR) 2020: | 300303 Animal nutrition 300304 Animal protection (incl. pests and pathogens) |
Socio-Economic Objective (SEO) 2008: | 830309 Poultry | Socio-Economic Objective (SEO) 2020: | 100411 Poultry | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article School of Environmental and Rural Science |
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openpublished/NecroticSharmaChoctWuSwick2018JournalArticle.pdf | Published version | 156.56 kB | Adobe PDF Download Adobe | View/Open |
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