{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:28:40Z","timestamp":1777595320392,"version":"3.51.4"},"reference-count":26,"publisher":"American Society for Microbiology","issue":"2","license":[{"start":{"date-parts":[[2002,2,1]],"date-time":"2002-02-01T00:00:00Z","timestamp":1012521600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Appl Environ Microbiol"],"published-print":{"date-parts":[[2002,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Due to concerns about a link between variant Creutzfeldt-Jakob disease in humans and similar prion protein-induced disease in cattle, i.e., bovine spongiform encephalopathy (BSE), strict controls are in place to exclude BSE-positive animals and\/or specified risk materials including bovine central nervous system (CNS) tissue from the human food chain. However, current slaughter practice, using captive bolt guns, may induce disruption of brain tissues and mobilize CNS tissues into the bovine circulatory system, leading to the dispersion of CNS tissues (including prion proteins) throughout the derived carcass. This project used a marker (antibiotic-resistant) strain of\n            <jats:italic>Pseudomonas fluorescens<\/jats:italic>\n            to model the effects of commercial captive bolt stunning procedures on the movement of mobilized CNS material within slaughtered animals and the abattoir environment. The marker organism, introduced by injection through the bolt entry aperture or directly using a cartridge-fired captive bolt, was detected in the slaughter environment immediately after stunning and in the abattoir environment at each subsequent stage of the slaughter-dressing process. The marker organism was also detected on the hands of operatives; on slaughter equipment; and in samples of blood, organs, and musculature of inoculated animals. There were no significant differences between the results obtained by the two inoculation methods (\n            <jats:italic>P<\/jats:italic>\n            &lt; 0.05). This study demonstrates that material present in, or introduced into, the CNS of cattle during commercial captive bolt stunning may become widely dispersed across the many animate and inanimate elements of the slaughter-dressing environment and within derived carcasses including meat entering the human food chain.\n          <\/jats:p>","DOI":"10.1128\/aem.68.2.791-798.2002","type":"journal-article","created":{"date-parts":[[2003,2,26]],"date-time":"2003-02-26T15:22:46Z","timestamp":1046272966000},"page":"791-798","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":20,"title":["Use of a Marker Organism To Model the Spread of Central Nervous System Tissue in Cattle and the Abattoir Environment during Commercial Stunning and Carcass Dressing"],"prefix":"10.1128","volume":"68","author":[{"given":"D. J.","family":"Daly","sequence":"first","affiliation":[{"name":"The National Food Centre, Teagasc, Dunsinea, Castleknock, Dublin, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D. M.","family":"Prendergast","sequence":"additional","affiliation":[{"name":"The National Food Centre, Teagasc, Dunsinea, Castleknock, Dublin, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. J.","family":"Sheridan","sequence":"additional","affiliation":[{"name":"The National Food Centre, Teagasc, Dunsinea, Castleknock, Dublin, Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"I. S.","family":"Blair","sequence":"additional","affiliation":[{"name":"Food Microbiology Research Unit, The University of Ulster, Jordanstown, Newtownabbey, County Antrim, Northern Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D. A.","family":"McDowell","sequence":"additional","affiliation":[{"name":"Food Microbiology Research Unit, The University of Ulster, Jordanstown, Newtownabbey, County Antrim, Northern Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/vr.145.16.460"},{"key":"e_1_3_2_3_2","first-page":"600","volume":"33","year":"1996","unstructured":"Bauer, N. E., T. Garland, and J. F. Edwards. 1996. Brain emboli in slaughtered cattle. Vet. Pathol.33:600.","journal-title":"Vet. Pathol."},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(05)60255-3"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.3201\/eid0701.010102"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1038\/39057"},{"key":"e_1_3_2_7_2","first-page":"636","volume":"349","year":"1997","unstructured":"Collee, J. G., and R. Bradley. 1997. BSE: a decade on--part 1. 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