{"id":5555,"date":"2021-03-31T09:16:39","date_gmt":"2021-03-31T08:16:39","guid":{"rendered":"https:\/\/sesc.cat\/enterococcus-septicemia-in-broiler-carcasses\/"},"modified":"2022-04-02T14:02:46","modified_gmt":"2022-04-02T13:02:46","slug":"enterococcus-septicemia-in-broiler-carcasses","status":"publish","type":"post","link":"https:\/\/sesc.cat\/en\/enterococcus-septicemia-in-broiler-carcasses\/","title":{"rendered":"Enterococcus septicemia in broiler carcasses"},"content":{"rendered":"

Three broiler carcasses were submitted from three batches from the same farm with 62\/13993 condemned carcases of 40-day-old animals that presented multiple lesions that, in a variable fashion, included: fibrinous coelomitis, ascites, pericarditis, hepatitis, pneumonia, nephritis, splenitis, arthritis, pododermatitis and dermatitis in the pectoral region. In the antemortem examination the animals were dirty and some with haemorrhagic diarrhea.<\/p>\n

The inspectors wanted to rule out that the lesions were caused by Salmonella<\/em> since that batch had been positive for this microorganism on the farm.<\/p>\n

At necropsy the following lesions were observed:<\/p>\n\n\n\n\n\n\n
Carcass<\/strong><\/td>\nNecropsy findings<\/strong><\/td>\nMicrobiological culture<\/strong><\/td>\n<\/tr>\n
1<\/td>\nSubacute moderate multifocal to coalescent necrotizing and heterophilic hepatitis.<\/p>\n

Subacute segmental fibrinous pericarditis.<\/p>\n

Mild, generalized lymphoplasmacytic myocarditis.<\/td>\n

Enterococcus faecalis<\/em> (K,S,L)<\/p>\n

Aeromonas hydrofila<\/em> (K,S,L)<\/p>\n

Salmonella enterica<\/em> serovar\u00a0Bredeney (K)<\/td>\n<\/tr>\n

2<\/td>\nModerate, subacute, diffuse necrotizing and heterophilic hepatitis<\/p>\n

Fibrinous pericarditis<\/p>\n

Lymphoplasmacytic myocarditis<\/td>\n

Enterococcus cecorum <\/em>(S)<\/p>\n

Enterococcus faecalis<\/em> (K,S,L)<\/p>\n

Aeromonas hydrofila<\/em> (K,S,L)<\/td>\n<\/tr>\n

3<\/td>\nIntense multi-organ congestion<\/p>\n

Acute, generalized interstitial pneumonia.<\/p>\n

Mild lymphoplasmacytic and heterophilic pericarditis and myocarditis.<\/p>\n

Mild, bilateral heterophilic typhlitis.<\/p>\n

Chronic, extensive focal necrotizing myositis (pectoral muscle).<\/td>\n

Enterococcus faecalis<\/em> (K,S,L)<\/p>\n

Aeromonas hydrofila<\/em> (K,S,L)<\/p>\n

S. Bredeney (S)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

K: kidney, L: liver; S: spleen.<\/p>\n

The observed lesions can be summarized as a bacterial septicemia<\/strong>. In this case, Enterococcus faecalis<\/em><\/strong> is the most likely cause of these lesions since Aeromonas<\/em> is usually related to contamination of the carcasses during processing (although it cannot be ruled out that it is also involved in septicemia).<\/p>\n

E. cecorum<\/em> (which can also cause similar pathology) and two isolates of Salmonella<\/em> Bredeney have also been isolated. The Salmonella<\/em> serovars that can cause lesions of this type are S<\/em>. pullorum and S<\/em>. gallinarum, and no cases have been seen in commercial birds in Catalonia for years. The serovar isolated in this case -Bredeney- is asymptomatic and, most likely, unrelated to the observed lesions.<\/p>\n

 <\/p>\n

\"\"

Broiler carcass with necrotizing hepatitis lesions.<\/p><\/div>\n

\"\"

A<\/strong>: Isolate of Aeromonas hydrofila<\/em> on blood agar. B<\/strong>: Isolate of Enterococcus faecalis<\/em> on blood agar. C<\/strong>: Isolated from S<\/em>. Bredeney in XLT-4, selective medium for Salmonella<\/em>. Photos: Lourdes Migura-Garcia IRTA-CReSA.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Three broiler carcasses were submitted from three batches from the same farm with 62\/13993 condemned carcases of 40-day-old animals that presented multiple lesions<\/p>\n","protected":false},"author":6,"featured_media":8537,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[169],"tags":[391,397,366],"class_list":["post-5555","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-poultry-2","tag-abdominal-cavity-en","tag-infectious-en","tag-liver"],"acf":[],"_links":{"self":[{"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/posts\/5555","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/comments?post=5555"}],"version-history":[{"count":0,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/posts\/5555\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/media\/8537"}],"wp:attachment":[{"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/media?parent=5555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/categories?post=5555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sesc.cat\/en\/wp-json\/wp\/v2\/tags?post=5555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}