I just had a 4 yr old maiden abort yesterday morning at post 6 months. The placenta had some small whitish circles on it and the placenta in those areas was very thin. The vet said it looked fungal in nature. I think Fungal mylocitis (not sure of the spelling) was the term tossed out there. Can someone please tell me what causes this? This mare is in a closed herd of 4. She doesn't go off property and was vaccinated for Rhino, etc, etc. I'm really at a loss. She showed nothing and the pregnancy seemed to be progressing normally. THe fetus was the correct size, etc, etc for it's stage in development and no physical abnormalities were seen. Thank-you.
"Fungal mycosis" is actually a redundant statement as the definition of "mycosis" is "a disease caused by a fungus"!
The most likely cause of your problem is that the mare has a degree of cervical incompetency, and the fungus (varieties of which are present in the environment, so having a closed herd or a "clean" farm doesn't protect you) gained access to the vagina and ultimately the uterus via the incompetent cervix. Another possible cause would be that the mare already had the fungus present in the uterus or vagina at the time of breeding. fungal infections are also commonly a sequela of antibiotic use in the mare - especially if used intra-uterine.
To confirm your veterinarians diagnosis you should have some of the fetal and placental tissues sent to a suitable pathology lab for a necropsy. If the diagnosis is confirmed, treatment to clear the fungal infection will be required prior to rebreeding, and it is possible that a Caslick's procedure would be beneficial in preventing a repeat occurrence in a subsequent pregnancy.
Please note that opinions, product information, advice or suggestions posted on this bulletin board are not necessarily those of the management at Equine-Reproduction.com nor does the maintenance of the post position indicate an implicit or any endorsement of that information, opinion or product.
Further, although we have the greatest respect for the posters offering assistance here, you are advised to seek a consultation with your veterinarian prior to using information obtained from this board if it is of a veterinary nature.Proud to be sponsored and supported by: