Prevalence of porcine circovirus-2 DNA-positive ovarian and uterine tissues in gilts culled due to reproductive disturbance in Thailand

Tropical Animal Health and Production
Pachara PearodwongPadet Tummaruk

Abstract

The present study aimed to determine the prevalence of porcine circovirus-2 (PCV-2) DNA-positive ovarian and uterine tissues in gilts culled due to reproductive disturbance in Thailand. Tissues (70 ovaries and 102 uteri) and serum (n = 102) samples from 102 gilts were included. PCV-2 DNA was detected by using polymerase chain reactions. The localisation of PCV-2 antigen was determined by immunohistochemistry, and PCV-2 antibody was evaluated by ELISA. PCV-2 DNA was detected in 30.0 % (21/70) of the ovaries and in 45.1 % (46/102) of the uteri. Age did not influence the frequency of PCV-2 DNA detection in these reproductive organs of gilts (P > 0.05). The prevalence of PCV-2 DNA-positive uterine tissue in gilts culled due to non-reproductive problems (20.0 %) was lower than gilts culled due to abortion (85.0 %), abnormal vaginal discharge (47.5 %) and anoestrus (53.5 %) (P < 0.05). The prevalence of PCV-2 DNA-positive uterine tissue in the gilts with high antibody titres (23.0 %) was lower than in gilts with low antibody titres (57.6 %) and seronegative gilts (64.5 %) (P < 0.05). PCV-2 immunostaining was detected in the endometrial cells, lymphocytes and macrophages of the uteri and in oocytes and granulosa cells of the ovaries. ...Continue Reading

References

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Citations

Nov 3, 2015·The Journal of Veterinary Medical Science·Padet Tummaruk, Pachara Pearodwong

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