Avian pathogenic Escherichia coli and ostriches: a deep dive into pathological and microbiological investigation.

IF 1.3 3区农林科学 Q2 VETERINARY SCIENCES

American journal of veterinary research Pub Date : 2024-12-18 DOI:10.2460/ajvr.24.09.0280

Rania S Zaki, Nady Kh Elbarbary, Manal A Mahmoud, Mounir M Bekhit, Mohamed M Salem, Marwa Darweish, Ahmed Fotouh

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引用次数: 0

Abstract

Objective: A comprehensive research was conducted to investigate the incidence of avian pathogenic Escherichia coli (APEC) in ostrich farms in Egypt.

Methods: The study involved seven farms with bird ages ranging from 1 to 12 weeks and capacities of 2,000 to 5,000 birds per farm. 175 tissue specimens were collected from different organs (liver, spleen, heart, lung, kidney, intestine, and meat).

Results: Clinical signs of APEC infection included diarrhea, lethargy, depression, and weight loss, with a morbidity rate of 36% and a mortality rate of 7.6%. In the current study, 52.5% of the samples have E coli. The highest prevalence was observed in the liver (10.8%), followed by the spleen and intestine (8% and 9.1%, respectively). The most common serotype identified was O27 (28%), after that O78 (20%) and O44 (12%). Histopathological examination revealed severe lesions in various organs, including the liver, kidney, heart, and intestine.

Conclusions: The study concluded the presence of APEC in different organs of ostrich in Egypt especially the liver, spleen, intestine, and breast muscle (meat) with evidence of severe pathological lesions in various organs.

Clinical relevance: The study highlights the significance of APEC as a main cause of morbidity and mortality in ostriches. It underscores the necessity for actual control measures to avoid spreading the disease.

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来源期刊

American journal of veterinary research 农林科学-兽医学

CiteScore

1.70

自引率

10.00%

发文量

186

审稿时长

3 months

期刊介绍： The American Journal of Veterinary Research supports the collaborative exchange of information between researchers and clinicians by publishing novel research findings that bridge the gulf between basic research and clinical practice or that help to translate laboratory research and preclinical studies to the development of clinical trials and clinical practice. The journal welcomes submission of high-quality original studies and review articles in a wide range of scientific fields, including anatomy, anesthesiology, animal welfare, behavior, epidemiology, genetics, heredity, infectious disease, molecular biology, oncology, pharmacology, pathogenic mechanisms, physiology, surgery, theriogenology, toxicology, and vaccinology. Species of interest include production animals, companion animals, equids, exotic animals, birds, reptiles, and wild and marine animals. Reports of laboratory animal studies and studies involving the use of animals as experimental models of human diseases are considered only when the study results are of demonstrable benefit to the species used in the research or to another species of veterinary interest. Other fields of interest or animals species are not necessarily excluded from consideration, but such reports must focus on novel research findings. Submitted papers must make an original and substantial contribution to the veterinary medicine knowledge base; preliminary studies are not appropriate.