Objective: Neosporosis is disease caused by the protozoan parasite, Neospora caninum. This is the most important cause of fatal disease and abortion in cattle in Iran and in numerous countries. The economic effects of neosporosis are dairy, meat losses and abortions in cattle. The goal of the current study was to evaluate the occurrence of N. caninum DNA using polymerase chain reaction (PCR) technique in frozen semen samples of Iranian bulls that were used for artificial insemination. Methods: In this study 57 frozen bull’s semen samples were collected randomly from artificial insemination centers and genomic DNA was extracted. For detection of pNC-5 gene of N. caninum by oligonucleotide primers were amplified using PCR technique and 1% agarose gel electrophoresis used for visualization of amplified PCR products. Results: The results of this study present 6 of 57 (10.53%) as positive semples. This show high presence of N. caninum infection and display importance of frozen semen samples of bulls, which were used for artificial insemination, in the spread of bovine neosporosis in Iran. These results present PCR as suitable technique for fast detection of this protozoan parasite in semen specimens. Conclusions: According to these results control and eradication programs, for example prevent vaccinations, as reduction of economic losses caused by this protozoan infection in Iranian cattle seems to be necessary.
کلید واژگان :Artificial insemination, Bull, Iran, Neospora caninum, PCR, Semen
ارزش ریالی : 600000 ریال
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