نتایج جستجو برای: e acervulina in 8 farms 50
تعداد نتایج: 17662622 فیلتر نتایج به سال:
1. Clinical and morphological studies were performed in 8 broiler breeder flocks (one hybrid) originating from two different farms in Bulgaria, with an incidence of lameness in female birds between 3 and 4% on one farm and 7 and 8% on the other. Clinical and morphological studies were performed. 2. Ruptured gastrocnemius tendons were observed in 78 broiler breeders, 24 to 31 weeks old with sign...
OBJECTIVES To describe the prevalence of antimicrobial resistance among commensal Escherichia coli isolates on household and small-scale chicken farms, common in southern Vietnam, and to investigate the association of antimicrobial resistance with farming practices and antimicrobial usage. METHODS We collected data on farming and antimicrobial usage from 208 chicken farms. E. coli was isolate...
During the first semester of 2002 the occurrence of the infectious pancreatic necrosis virus (IPNV) in rainbow trout (Oncorhynchus mykiss) farms was investigated in the state of Hidalgo, Mexico. A total of 25 out of 29 analysed farms were positive for IPNV; however only one farm had clinically diseased fish. The spread of IPNV in this state seems to be associated with the movement of trout eggs...
Various virulence-associated genes or pathogenicity island are responsible for determining the pathogenicity of Escherichia coli strains. However, the correlation of the number and combination patterns of virulence-associated genes in Escherichia coli strains with their pathogenicity remains largely unknown. In this work, 581 chicken Escherichia coli strains were isolated from 1045 liver sample...
حلقه r، آیکدا ناکایاما حلقه (حلقه –in) نامیده می شود هرگاه پوچ ساز چپ اشتراک هر دو ایده آل راست برابر با مجموع پوچ سازهای چپ آن دو ایده ال باشد. در این پایان نامه نشان داده می شود که اگر r یک in-حلقه راست باشد و a,b دو ایدآل راست r باشند که مکمل یکدیگرند، آن گاه خود توان e?r وجود دارد به طوری که a=er و b=(1-e)r. به عنوان یک نتیجه نشان داده می شود که r خود تزریقی راست است اگر و تنها اگر m2(r) یک...
Although Salmonella spp., Escherichia coli O157, Listeria monocytogenes, Enterococcus faecalis and Clostridium spp. present a significant food safety and/or spoilage issue for the beef sector, there are limited data on their prevalence in Irish cattle. The objectives of this preliminary study were to investigate distribution (percentage farms positive) E. L. overall (%) these bacteria cattle sm...
Jejunal villi of chickens generally maintained their structural integrity regardless of the severity of infection with Eimeria necatrix. Only during the severest infection was villar height reduced to a value below measurements of uninoculated controls. Subvillar thickness increased with severity of infection, possibly because of the increasing numbers of parasites present in the host tissue. M...
J. E. Amaro, M. B. Barbaro, J. A. Caballero, and F. Kazemi Tabatabaei Departamento de Fı́sica Moderna, Universidad de Granada, E-18071 Granada, Spain Dipartimento di Fisica Teorica, Università di Torino and INFN, Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy Departamento de Fı́sica Atómica, Molecular y Nuclear Universidad de Sevilla, Apartado Postal 1065, E-41080 Sevilla, Spain ~Receive...
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