Prevalence of Mycoplasma synoviae and Its Impact on Productivity in Commercial Poultry Farms in Quebec, Canada

2021 ◽  
Vol 65 (4) ◽  
Author(s):  
Nadia Bergeron ◽  
Ghislain Hébert ◽  
Martin C. Pelletier ◽  
Hugh Y. Cai ◽  
Marie-Eve Brochu-Morin ◽  
...  
Keyword(s):  
Mycoplasma Synoviae ◽  
Poultry Farms ◽  
Commercial Poultry

scholarly journals Seroprevalence of Mycoplasma synoviae and Mycoplasma gallisepticum at Batna Commercial poultry farms in Algeria

2012 ◽  
Vol 5 (12) ◽  
pp. 709 ◽  
Author(s):  
Nouzha Heleili ◽  
Ammar Ayachi ◽  
Bakir Mamache ◽  
Abdeljalil Chelihi
Keyword(s):  
Mycoplasma Gallisepticum ◽  
Mycoplasma Synoviae ◽  
Poultry Farms ◽  
Commercial Poultry

scholarly journals Avian mycoplasmosis monitoring in the Russian Federation in 2019

2020 ◽  
pp. 89-93
Author(s):  
A. E. Menshchikova ◽  
T. N. Brundakova ◽  
M. S. Volkov ◽  
V. N. Irza
Keyword(s):  
Serological Test ◽  
Disease Spread ◽  
Enzyme Linked Immunosorbent Assay ◽  
Economic Damage ◽  
Limited Area ◽  
High Concentration ◽  
Mycoplasma Synoviae ◽  
Poultry Farms ◽  
Commercial Poultry ◽  
Poultry Farming

Under the conditions of intensive poultry farming and high concentration of poultry in a limited area mycoplasmoses cause significant economic damage to commercial poultry farming. Of greatest interest are respiratory mycoplasmosis and infectious synovitis, the causative agents of which are Mycoplasma gallisepticum and Mycoplasma synoviae, respectively. Considering that both diseases are included in the OIE list of notifiable diseases, it is necessary to perform constant control for their spread. The paper presents an analysis of serological test results for antibodies to mycoplasmosis agents in 2019. Six respiratory mycoplasmosis positive samples – and 129 infectious synovitis positive samples were detected when testing 2,401 chicken serum samples by the enzyme-linked immunosorbent assay (ELISA). The results of monitoring tests of samples received from 31 poultry farms (nine RF Subjects) indicate a decrease in the number of Mycoplasma gallisepticuminfected stocks and stable Mycoplasma synoviae situation. The respiratory mycoplasmosis epidemic situation on indoor poultry farms might have improved due to obtaining the poultry for commercial parent stocks from mycoplasmosis-free sources, better sanitary and hygienic conditions, elimination of the disease provoking factors, and the use of the disease-specific means of prevention in the parent broiler stocks. The infectious synovitis situation remains tense despite the fact that the number of Мycoplasma synoviae-infected farms decreased in comparison with the monitoring results for 2015–2018. Most seropositive stocks were detected on the layer farms (50.0% – in 2019). It seems appropriate to increase the amount of tests to be performed and the number of farms covered by testing in 2020 to more fully present the disease spread situation in commercial poultry farming in Russia.

scholarly journals Occurrence of Mycoplasma synoviae on commercial poultry farms of Pernambuco, Brazil

2014 ◽  
Vol 34 (10) ◽  
pp. 953-956 ◽  
Author(s):  
Mércia R. Barros ◽  
Elmiro R. Nascimento ◽  
José Sérgio A. Silva ◽  
José W. Pinheiro Júnior ◽  
Sandra B. Santos ◽  
...  
Keyword(s):  
Laying Hens ◽  
Mycoplasma Gallisepticum ◽  
The State ◽  
Economic Losses ◽  
Joint Diseases ◽  
Mycoplasma Synoviae ◽  
The North ◽  
Broiler Production ◽  
Poultry Farms ◽  
Commercial Poultry

The state of Pernambuco is the largest producer of eggs in the North and Northeast of Brazil and second one in the broiler production. Mycoplasmas are important avian pathogens, which cause respiratory and joint diseases that result in large economic losses. The aim of the present study was to investigate the occurrence of Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) in broilers and commercial laying hens in the state of Pernambuco, Brazil. Tracheal fragments were analyzed from 55 healthy broilers, 35 broilers with respiratory signs and 30 commercial laying hens with respiratory signs, from 24 commercial poultry farms, each sample was composed of a pool of five birds. The bacteriological exam, PCR and nested PCR were used for the detection of Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS). All samples were negative in bacteriological isolation. In the PCR analyses, seven samples from birds with respiratory signs were positive for MS and one was positive for MG, the latter of which was confirmed as the MG-F vaccine strain. The occurrence of MS in chickens with respiratory signs may indicate inadequate sanitary management on poultry farms, favoring the propagation of mycoplasmosis.

scholarly journals Salmonella Bacteriophage Diversity According to Most Prevalent Salmonella Serovars in Layer and Broiler Poultry Farms from Eastern Spain

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1456
Author(s):  
Sandra Sevilla-Navarro ◽  
Pablo Catalá-Gregori ◽  
Clara Marin
Keyword(s):  
Point Of View ◽  
Poultry Production ◽  
Poultry Products ◽  
Production Type ◽  
Poultry Farms ◽  
Commercial Poultry ◽  
Salmonella Serovars ◽  
The Impact ◽  
Phage Isolation ◽  
Salmonella Phage

The exploration of novel nonantibiotic interventions in the field, such as the use of bacteriophages, is necessary to avoid the presence of Salmonella. Bacteriophages are a group of viruses widely distributed in nature, strictly associated with the prokaryotic cell. Researchers have demonstrated the success of phage therapy in reducing Salmonella counts in poultry products. However, the impact that phage concentration in the environment may have against certain Salmonella serovars is not well understood. Therefore, the aim of this study was to assess Salmonella phage prevalence in commercial poultry farms in terms of the production type: layers or broilers. The most prevalent Salmonella serovars isolated in poultry production were used for phage isolation. Salmonella specific phages were isolated from 141 layer and broiler farms located in the Valencia region during 2019. Analysis of the samples revealed that 100% presented Salmonella phages, the most prevalent being against serovar S. Enteritidis (93%), followed by S. Virchow (59%), S. Typhimurium (55%), S. Infantis (52%) and S. Ohio (51%). These results indicate that poultry farms could represent an important source of Salmonella phages. Nevertheless, further studies are needed to assess the epidemiology of phages against other serovars present in other countries and their diversity from the point of view of molecular studies.

scholarly journals A Multiplex real-time PCR for detection of Mycoplasma gallisepticum and Mycoplasma synoviae in clinical samples from Brazilian commercial poultry flocks

2013 ◽  
Vol 44 (2) ◽  
pp. 505-510 ◽  
Author(s):  
Aline Padilha Fraga ◽  
Tatiana de Vargas ◽  
Nilo Ikuta ◽  
André Salvador Kazantzi Fonseca ◽  
Álvaro José Celmer ◽  
...  
Keyword(s):  
Real Time ◽  
Real Time Pcr ◽  
Mycoplasma Gallisepticum ◽  
Clinical Samples ◽  
Mycoplasma Synoviae ◽  
Commercial Poultry

scholarly journals Investigation ofClostridium botulinumin commercial poultry farms in France between 2011 and 2013

2014 ◽  
Vol 43 (5) ◽  
pp. 458-464 ◽  
Author(s):  
R. Souillard ◽  
C. Woudstra ◽  
C. Le Maréchal ◽  
M. Dia ◽  
M. H. Bayon-Auboyer ◽  
...  
Keyword(s):  
Poultry Farms ◽  
Commercial Poultry

scholarly journals THE EPIDEMIOLOGY OF FOWL CHOLERA

1930 ◽  
Vol 51 (2) ◽  
pp. 249-258 ◽  
Author(s):  
Ida W. Pritchett ◽  
F. R. Beaudette ◽  
T. P. Hughes
Keyword(s):  
Field Studies ◽  
Colony Type ◽  
Fowl Cholera ◽  
Poultry Farms ◽  
High Virulence ◽  
Commercial Poultry ◽  
The Individual ◽  
High Level ◽  
Serum Agglutination ◽  
Healthy Carriers

Field studies of fowl cholera on two commercial poultry farms are described. One farm, previously free of cholera, was studied during an active epidemic, which occurred during the winter months. The strains of P. avicida recovered, both from "autopsy" and from "healthy carriers" proved generally similar, and to be of the "fluorescent" or "intermediate" colony type, which is of relatively high virulence. After the subsidence of the epidemic, these strains tended to disappear. The second flock consisted of a small group of birds which had survived an epidemic of cholera the previous year, and in which the infection was prevailing in endemic form. No deaths occurred during the period of observation, but the number of birds with localized lesions and the number of carriers increased to a high level during the winter months. The strains of P. avicida were apparently of the "blue" colony form, although some, as shown by their acid and serum agglutination reactions, resembled the "intermediates." These strains appeared to be spreading rather than dying out. The individual fowls differed in their response to the presence of infection; some showed localized lesions, others were carriers, while still others seemed entirely refractory.

Threshold investment and firm viability: Evidence from commercial poultry farms in Nigeria

Agribusiness ◽  
2020 ◽  
Vol 36 (3) ◽  
pp. 422-439
Author(s):  
Awa Sanou ◽  
Lenis S. O. Liverpool‐Tasie ◽  
John M. Kerr
Keyword(s):  
Poultry Farms ◽  
Commercial Poultry
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