Abstract:
:Laying hens were individually caged at 20 weeks of age and tested for fecal excretion of Campylobacter jejuni (minimum level of detection was 100 cfu/g) during a 42-week period. Peak rates of C. jejuni isolation (approximately 25% of hens positive) occurred at two different times, in October and in late April to early May. Before being segregated in late September, birds were allowed to consume fecal matter, litter, and communal drinking water, all likely sources of C. jejuni. The increased excretion rate in late April may have been due to a climatic change. A small portion (8.1%) of the hens chronically excreted (positive less than 30% of the sampling times) the organism, whereas C. jejuni was not detected in 33% of the hens, even though birds were likely exposed to the organism before being segregated. No correlation could be made between rates of C. jejuni excretion and egg production. Of 266 eggs from hens fecally excreting C. jejuni, the organism was isolated from two shell surfaces but no egg contents. Egg penetration studies revealed that the organism would not penetrate into the contents of the eggs but could be isolated occasionally from the inner shell and membranes of refrigerated eggs.
journal_name
Appl Environ Microbioljournal_title
Applied and environmental microbiologyauthors
Doyle MPdoi
10.1128/AEM.47.3.533-536.1984subject
Has Abstractpub_date
1984-03-01 00:00:00pages
533-6issue
3eissn
0099-2240issn
1098-5336journal_volume
47pub_type
杂志文章abstract::We reported previously on the function of acyl coenzyme A (acyl-CoA) oxidase isozymes in the yeast Yarrowia lipolytica by investigating strains disrupted in one or several acyl-CoA oxidase-encoding genes (POX1 through POX5) (H. Wang et al., J. Bacteriol. 181:5140-5148, 1999). Here, these mutants were studied for lacto...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.66.3.1233-1236.2000
更新日期:2000-03-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02882-05
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pub_type: 杂志文章
doi:10.1128/aem.68.7.3467-3477.2002
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.55.9.2138-2140.1989
更新日期:1989-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1128/AEM.01436-13
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.56.6.1954-1956.1990
更新日期:1990-06-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01910-20
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.58.8.2536-2542.1992
更新日期:1992-08-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.38.5.836-839.1979
更新日期:1979-11-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.64.12.5057-5060.1998
更新日期:1998-12-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.55.9.2365-2371.1989
更新日期:1989-09-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.64.11.4161-4167.1998
更新日期:1998-11-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.46.5.1017-1023.1983
更新日期:1983-11-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.56.2.451-462.1990
更新日期:1990-02-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.58.10.3387-3394.1992
更新日期:1992-10-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.68.4.1972-1979.2002
更新日期:2002-04-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
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journal_title:Applied and environmental microbiology
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doi:10.1128/AEM.62.5.1788-1792.1996
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/aem.67.9.3951-3957.2001
更新日期:2001-09-01 00:00:00
abstract::Pure nonhydrolyzed inulin was directly converted to ethanol in a simultaneous saccharification and fermentation process. An inulinase-hyperproducing mutant, Aspergillus niger 817, was grown in a submerged culture at 30 degrees C for 5 days. The inulin-digestive liquid culture (150 ml) was supplemented with 45 g of inu...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.59.3.729-733.1993
更新日期:1993-03-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02531-10
更新日期:2011-04-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.43.5.1006-1010.1982
更新日期:1982-05-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02679-17
更新日期:2018-04-16 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.67.12.5824-5829.2001
更新日期:2001-12-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.07381-11
更新日期:2012-04-01 00:00:00
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journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.64.4.1256-1263.1998
更新日期:1998-04-01 00:00:00
abstract::Chromosomal integration of heterologous metabolic pathways is optimal for industrially relevant fermentation, as plasmid-based fermentation causes extra metabolic burden and genetic instabilities. In this work, chromosomal integration was adapted for the production of mevalonate, which can be readily converted into β-...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.02178-16
更新日期:2016-11-21 00:00:00
abstract::A radioisotope method was devised to study bacterial respiratory reduction of arsenate in sediments. The following two arsenic-rich soda lakes in California were chosen for comparison on the basis of their different salinities: Mono Lake (approximately 90 g/liter) and Searles Lake (approximately 340 g/liter). Profiles...
journal_title:Applied and environmental microbiology
pub_type: 杂志文章
doi:10.1128/AEM.01066-06
更新日期:2006-10-01 00:00:00