Healthy Broodmares Can Shed EHV-1 Vaginally
Alexandra Beckstett
May 11, 2019
Researchers say this might be a bigger source of environmental contamination than previously thought.
Researchers say this might be a bigger source of environmental contamination than previously thought.
One additional case of EHV-1 abortion was confirmed in Humboldt County in April. The NDA did not issue a quarantine for this case because the incubation period has passed and no horses have been moved to or from the property.
Researchers identified three ways to help improve pregnancy and foaling rates: breeding mares multiple times in a season, inseminating close to ovulation, and choosing a stallion with progressively motile sperm.
Dunuwille is studying the vascular inflammatory process equine herpesvirus type 1 and equine arteritis virus induce. Both viruses can cause abortions in pregnant mares, and vascular inflammation plays a major role in these losses.
The ongoing Equine Respiratory Biosurveillance Program revealed new information on infectious respiratory disease threats, including EHV-1 and EHV-4, influenza, S. equi, equine rhinitis A/B viruses, and more. Here’s what you should know.
Reported diseases included African horse sickness, atypical myopathy, contagious equine metritis, salmonellosis, and more.
A mare at a private facility aborted a pregnancy in late March. Tests confirmed the abortion was caused by EHV-1 infection, There is no evidence to suggest this case is connected to case diagnosed in Ada County earlier this month.
Broadleaf plants, such as dandelions and ragweed, aren’t the only weeds that can infiltrate pastures. Here’s how to control grassy weeds that can be prominent in summer pastures, including crabgrass, yellow foxtail, and nimblewill.
Pregnant mares consuming large numbers of Eastern tent caterpillars caused staggering early- and late-term foal losses and weak foals during the mare reproductive loss syndrome (often referred to as MRLS) outbreak of 1999-2001.
Disease caused by EHV-1 can be mild or more severe, including late-term abortion in pregnant mares.
The transitional period between anestrus and estrus is officially complete once a mare has had her first heat of the year. Getting some mares to this point, however, and deciding when to breed them can be tricky.
Dr. Regina Turner shares the results of studies on antimicrobial options for metritis, treating blocked oviducts, estrus lengths and pregnancy rates, colic surgery in broodmares, and more.
One veterinarian has confirmed that a combination of drugs can disrupt biofilms in mares with endometritis, potentially making the uterus a happier place for embryo attachment and pregnancy.
A week prior to the abortions, two horses on the same farm developed clinical signs consistent with the neurologic form of EHV-1. These horses were euthanized and no further diagnostic testing was performed, OMAFRA said.
It’s critical that owners and breeding farms send aborted foals to a veterinary diagnostic laboratory, even if the cause of abortion appears obvious. Here’s why.
The affected horse became ill on Jan. 5, was treated Jan. 6, and was euthanized later that day.
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