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Original Research
1.
Seroprevalence of Mycoplasma synoviae and Mycoplasma
gallisepticum at Batna commercial poultry farms in
Algeria -
Nouzha Heleili, Ammar Ayachi, Bakir Mamache,
Abdeljalil Chelihi
Vet World. 2012; 5(12): 709-712
doi:
10.5455/vetworld.2012.709-712
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
during winter season (61.48%) than in summer
(47.74%) while MS infection is more dominant in
summer (91.25% against 46.69%). Again this was
recorded in different age groups, with significantly
higher occurrence in young compared to adult with
85.14% in layer hens and 90.73% in broiler chickens.
On the other hand, the seroprevalence of MG and MS
infection was found little (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.
Keywords: Mycoplasma gallisepticum, Mycoplasma
synoviae, seroprevalence, poultry farms, SPA
