Bovine neosporosis, caused by Neospora caninum is a leading cause of abortion in cattle. We postulated that neosporosis could lead to fetal death and mummification. Fifteen mummified fetuses were tested by polymerase chain reaction (PCR) for the mutation in the bovine SLC35A3 gene that causes complex vertebral malformation (CVM) and the pNC-5 gene which identifies N. caninum infection. DNA was extracted from the mummified fetuses and the sex of the mummies was determined by PCR. The CVM mutation was not detected in the mummified fetuses, but 4 fetuses were positive for N. caninum infection. The ages of the mummies with N. caninum infection were 100, 113, 123, and 131 days. Twelve of the 15 mummified fetuses were male. To our knowledge, this is the first detection of N. caninum as a possible cause of bovine fetal mummification.
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