Eggshell apex abnormalities associated with Mycoplasma synoviae infection in layers
نویسندگان
چکیده
Eggs exhibiting eggshell apex abnormalities (EAA) were evaluated for changes in shell characteristics such as strength, thickness, and ultrastructure. Mycoplasma synoviae (MS) infection was confirmed by serological assay along with isolation of MS from the trachea and oviduct. Changes in eggshell quality were shown to be statistically significant (p < 0.01). We also identified ultrastructural changes in the mammillary knob layer by Scanning Electron Microscopy. While eggs may seem to be structurally sound, ultrastructural evaluation showed that affected eggs do not regain their former quality. In our knowledge, this is the first report describing the occurrence of EAA in Korea.
منابع مشابه
Effect of a live Mycoplasma synoviae vaccine on the production of eggshell apex abnormalities after a dual infection with M. synoviae and IBV D1466
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