Abstract
Aim: The present study was undertaken to know the seroprevalence of Mycoplasma synoviae (MS) and Mycoplasma gallisepticum (MG) in broiler and layer chickens in the area of Batna, eastern Algeria. This investigation was conducted during the period from 2008 to 2011. Materials and Methods: A total of 505 sera samples were collected and tested by serum plate agglutination (SPA) test using Mycoplasma gallisepticum and Mycoplasma synoviae antigens (Soleil Diagnostic) to detect the presence of antibodies against MS and MG. Results: The overall prevalence of MS and MG infection in the 27 flocks visited in this investigation were recorded as 66.33% and 69.90% respectively. Seroprevalence of MG infection was found significantly (p 0.05) higher in large flocks (76.97%) in comparison to small flocks (63.63%). The highest prevalence (76.59%) of mycoplasmal infection in layer hens was found in Lohman strain. Conclusion: It has been found that MG and MS infections are still important disease problems in poultry farms in Algeria.
Highlights
Mycoplasmosis is one of the major problems among avian diseases in emerging poultry industry of Algeria
A total of 505 sera samples were collected during winter and summer season tested by Serum Plate Agglutination test (SPA) to determine the seroprevalence of Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) infection in the region of Batna, eastern Algeria
Age is a very important parameter influencing the incidence of mycoplasmosis [9]
Summary
Mycoplasmosis is one of the major problems among avian diseases in emerging poultry industry of Algeria. Poultry farming has been hampered by the outbreak of fatal infectious diseases caused by bacteria, viral, Mycoplasmal and other causal agents [1]. Mycoplasmosis is one of the most important infections in poultry that cause serious economic losses. It is caused by four commonly recognized pathogenic Mycoplasma namely Mycoplasma gallisepticum MG), Mycoplasma synoviae (MS), Mycoplasma meleagridis (MM) and Mycoplasma iowae (MI) but MG and MS are the most important ones [2]. All ages of chickens are susceptible to this disease but young birds are more prone to infection than adults [3]. The disease may be transmitted both horizontally and vertically and remain in the flock constantly as subclinical form [4]
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