Exogenous sources of Listeria contamination in raw ewe's milk
Water, feeds, milking equipment, environmental samples and feces from 15 farms producing ewe's milk contaminated by Listeria spp. were examined over a 1-year period, using a two-step enrichment procedure followed by a DNA hybridization test. Listeria spp. were isolated w=from 19.6% of trough-water samples, 13.1% of feed samples, 36.4% of bedding samples, 80.6% of farmyard- soil samples, and 16.2% of ewe's feces samples. The contamination rates of these samples by L. monocytogenes were 7.8%, 1.2%, 11.4%, 8.3%, and 2.7%, respectively. Tap water and milking equipment were free from Listeria spp. Fecal samples from poultry and birds in the farms exhibited a high incidence of Listeria spp. (72.7% for hens, 28.6% for pigeons and 48.3% for sparrows) and could be responsible for the contamination of trough water and some feeds by these microorganisms.
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Format: | journal article biblioteca |
Language: | English |
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International Association for Food Protection
1996
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Subjects: | Listeria monocytogenes, Listeria spp., Ewe's milk, Environmental contamination, |
Online Access: | http://hdl.handle.net/20.500.12792/1551 http://hdl.handle.net/10261/293616 |
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dig-inia-es-10261-2936162023-02-20T10:30:17Z Exogenous sources of Listeria contamination in raw ewe's milk Garcia, E. de Paz, M. Rodriguez, J. L. Gaya Sicilia, María Pilar Medina, M. Núñez Gutiérrez, Manuel Listeria monocytogenes Listeria spp. Ewe's milk Environmental contamination Water, feeds, milking equipment, environmental samples and feces from 15 farms producing ewe's milk contaminated by Listeria spp. were examined over a 1-year period, using a two-step enrichment procedure followed by a DNA hybridization test. Listeria spp. were isolated w=from 19.6% of trough-water samples, 13.1% of feed samples, 36.4% of bedding samples, 80.6% of farmyard- soil samples, and 16.2% of ewe's feces samples. The contamination rates of these samples by L. monocytogenes were 7.8%, 1.2%, 11.4%, 8.3%, and 2.7%, respectively. Tap water and milking equipment were free from Listeria spp. Fecal samples from poultry and birds in the farms exhibited a high incidence of Listeria spp. (72.7% for hens, 28.6% for pigeons and 48.3% for sparrows) and could be responsible for the contamination of trough water and some feeds by these microorganisms. 2023-02-20T10:30:17Z 2023-02-20T10:30:17Z 1996 journal article Journal of Food Protection 59(9): 950-954 (1996) 0362-028X http://hdl.handle.net/20.500.12792/1551 http://hdl.handle.net/10261/293616 10.4315/0362-028X-59.9.950 en none International Association for Food Protection |
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Listeria monocytogenes Listeria spp. Ewe's milk Environmental contamination Listeria monocytogenes Listeria spp. Ewe's milk Environmental contamination |
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Listeria monocytogenes Listeria spp. Ewe's milk Environmental contamination Listeria monocytogenes Listeria spp. Ewe's milk Environmental contamination Garcia, E. de Paz, M. Rodriguez, J. L. Gaya Sicilia, María Pilar Medina, M. Núñez Gutiérrez, Manuel Exogenous sources of Listeria contamination in raw ewe's milk |
description |
Water, feeds, milking equipment, environmental samples and feces from 15 farms producing ewe's milk contaminated by Listeria spp. were examined over a 1-year period, using a two-step enrichment procedure followed by a DNA hybridization test. Listeria spp. were isolated w=from 19.6% of trough-water samples, 13.1% of feed samples, 36.4% of bedding samples, 80.6% of farmyard- soil samples, and 16.2% of ewe's feces samples. The contamination rates of these samples by L. monocytogenes were 7.8%, 1.2%, 11.4%, 8.3%, and 2.7%, respectively. Tap water and milking equipment were free from Listeria spp. Fecal samples from poultry and birds in the farms exhibited a high incidence of Listeria spp. (72.7% for hens, 28.6% for pigeons and 48.3% for sparrows) and could be responsible for the contamination of trough water and some feeds by these microorganisms. |
format |
journal article |
topic_facet |
Listeria monocytogenes Listeria spp. Ewe's milk Environmental contamination |
author |
Garcia, E. de Paz, M. Rodriguez, J. L. Gaya Sicilia, María Pilar Medina, M. Núñez Gutiérrez, Manuel |
author_facet |
Garcia, E. de Paz, M. Rodriguez, J. L. Gaya Sicilia, María Pilar Medina, M. Núñez Gutiérrez, Manuel |
author_sort |
Garcia, E. |
title |
Exogenous sources of Listeria contamination in raw ewe's milk |
title_short |
Exogenous sources of Listeria contamination in raw ewe's milk |
title_full |
Exogenous sources of Listeria contamination in raw ewe's milk |
title_fullStr |
Exogenous sources of Listeria contamination in raw ewe's milk |
title_full_unstemmed |
Exogenous sources of Listeria contamination in raw ewe's milk |
title_sort |
exogenous sources of listeria contamination in raw ewe's milk |
publisher |
International Association for Food Protection |
publishDate |
1996 |
url |
http://hdl.handle.net/20.500.12792/1551 http://hdl.handle.net/10261/293616 |
work_keys_str_mv |
AT garciae exogenoussourcesoflisteriacontaminationinrawewesmilk AT depazm exogenoussourcesoflisteriacontaminationinrawewesmilk AT rodriguezjl exogenoussourcesoflisteriacontaminationinrawewesmilk AT gayasiciliamariapilar exogenoussourcesoflisteriacontaminationinrawewesmilk AT medinam exogenoussourcesoflisteriacontaminationinrawewesmilk AT nunezgutierrezmanuel exogenoussourcesoflisteriacontaminationinrawewesmilk |
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1767603500299059200 |