White Rice-like Granule Lesions in Chlamydially Aborted Fetus's Placentas: PCR Diagnosis of A Case  

Changqing Qiu , Jizhang Zhou , Xiao-an Cao , Fuying Zheng , Guozhen Lin , Xiaowei Gong
State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou Gansu 730046,China
Author    Correspondence author
International Journal of Molecular Veterinary Research, 2013, Vol. 3, No. 7   doi: 10.5376/ijmvr.2013.03.0007
Received: 21 Apr., 2013    Accepted: 09 May, 2013    Published: 30 Aug., 2013
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This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Qiu et al., 2013, White Rice-like Granule Lesions in Chlamydially Aborted Fetus's Placentas: PCR Diagnosis of A Case, International Journal of Molecular Veterinary Research, Vol.3, No.7 34-35 (doi: 10.5376/ijmvr.2013.03.0007)

Abstract

On the pig farm in Longyan City, Fujian province, chlamydial abortion in pregnant pigs happened. White rice-like granule lesions were formed in the placentas of some cases which had not been reported before in China. For knowledge of the problem, 30 pig sera were sampled for detecting the antibodies against chlamydia psittaci using IHA for animal chlamydiosis and the result of test was 12 serum samples were positive for chlamydial antibody (the antibody titer 1:16~1:64), and the chlamydia infection rate reached 12/30 (40.0%). And we sampled two fetus stomach contents and five fetal membranes for examining Chlamydia sp. by means of nested polymerase chain reaction (nested-PCR) and the result showed 1/2 aborted pig fetus’s fetal membranes with a lot of white rice-like granules, 2/2 aborted pig fetus’ stomach contents, and 2/3 aborted pig fetus’s fetal membranes without any white rice-like granules were positive for chlamydia (5/7 positive rate). The lesion formation may be related with chlamydia infection time.

Keywords
Chlamydial abortion; Pathologic lesion; PCR diagnosis; Case study; Pig
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