Mare Care

Article

West Nile Virus Vaccination in Mares and Foals

December 04, 2002

There were nearly 14,000 reported cases of West Nile virus (WNV) in the United States in 2002 by the end of November, and many broodmares were exposed to the virus even if not clinically affected. As the country begins its fifth year of handling... Read More

Article

Endometrial Cysts

November 15, 2002

Endometrial cysts occur in up to 22% of all mares and up to 55% of older mares.... Read More

Video

Draining Endometrial Cysts with a Laser

November 15, 2002

Watch the draining of an endometrial cyst in this short video clip.... Read More

Article

Luteal Insufficiency in the Mare

November 08, 2002

Insufficient function of the corpus luteum (the structure formed after the follicle that releases the egg, or ovulates, and then produces progesterone) has been proposed as a mechanism for early embryonic loss in the mare, but until now there... Read More

Article

Chronic Uterine Torsion in Mares

November 01, 2002

In late pregnancy, mares are susceptible to a dangerous complication called uterine torsion. Accounting for 5-10% of obstetrical emergencies, twisting of the uterus can be fatal to fetus and mare if left untreated. The hallmark of acute uterine... Read More

Article

Breeding Soundness Exam of the Mare

November 01, 2002

Horse breeding is a time-consuming and expensive business. Therefore, horse breeders must be able to assess the likelihood of a mare being able to conceive, carry a fetus through a pregnancy, and deliver a live foal. While unforeseen problems ca... Read More

Article

Foaling Alarms--Expecting Company?

November 01, 2002

There are several types of foaling alarms available. They are designed to notify the person responsible (owner, farm manager, or foaling attendant) that the mare is in labor. ... Read More

Article

Purina Veterinary Conference 2002

October 16, 2002

Only 20 miles from downtown St. Louis, Mo., is a 1,200-acre research farm owned by the nutrition company Purina Mills. On Oct. 3-5, 140-plus veterinarians and another 50 Purina Mills representatives gathered to tour that research facility and... Read More

Article

Mare Milking Early

August 01, 2002

I have a Paso Fino mare whose due date is three months away and her milk bag is full, hot, and dripping very white milk. She has been waxed over for about a week now, but thankfully she seems to be in no distress. I can find no one with this... Read More

Article

Bute Toxicity in Neonates

May 01, 2002

Q: My wife and I were told that giving Bute (phenylbutazone) to a mare in foal can cause heart defects in the foal, similar to aspirin taken by women in early pregnancy. Is there any connection? A: Signs of phenylbutazone toxicity in foals whose...... Read More

Article

Pregnant Mare Weight Gain

April 01, 2002

We have a 6-year-old Quarter Horse mare and a 21-year-old Paint mare, both in foal to the same Quarter Horse stud. Both were five months along in mid-November (they were bred one week apart). The 6-year-old gained 31 pounds in a six-week period,... Read More

Article

Evaluating Reproductive Health in Mares

April 01, 2002

The reproductive system of the horse has evolved over time with specific protective functions that are necessary for fertility. The horse and pig are the only domestic animals in which semen is deposited directly into the uterus, in contrast to... Read More

Article

Feeding Broodmares

March 01, 2002

The broodmare goes through three phases of reproduction--early gestation, late gestation, and lactation. Mares in good body condition cycle earlier in the year, require fewer cycles per conception, have a higher pregnancy rate, and are able to... Read More

Article

Fescue Field Management

March 01, 2002

It is estimated that 35 million acres of United States pasture are planted with tall fescue (Festuca arundinacea), and roughly 700,000 horses graze these fescue pastures. This plant is a cool-season plant, so it grows in cooler climates,... Read More

Article

Managing Barren Mares

February 01, 2002

Not every mare that is mated during a breeding season becomes pregnant, nor does every mare that conceives carry a foal to term. Failure of conception, early embryonic losses, and abortions are a fact of life in equine reproduction, and problem... Read More

Article

A World on the Move

February 01, 2002

The World Equine Veterinary Association (WEVA) met in Sorrento, Italy, in conjunction with the October 2001 Italian veterinary association annual meeting. WEVA meets every other year in locations designed to attract veterinarians from countries... Read More

Article

Uterine Tubal Patency Examination

February 01, 2002

Breeding is big business. Those who doubt need only look at the results of the 1998 Keeneland November breeding stock sale for verification. Prices for broodmares and weanlings soared--top price for a broodmare, $7 million; for a weanling, $1.5... Read More

Article

Placentitis-Causing Bacterium Gets Name

January 15, 2002

Each year throughout the United States, mares lose their pregnancies due to placentitis or an infection in the placenta. Placentitis causes lesions in the placenta, which provides nourishment from the mare to the fetus. When that nourishment is... Read More

Article

Wild Horse Killings Anger Community

January 03, 2002

Corolla, N.C., residents have pulled together to help find the killer of four wild horses that were shot to death in Nov., 2001. A $10,000 bounty has been posted for information that leads to a felony conviction of the killer, according to an... Read More

Article

Mother's Milk: Understanding Mare Lactation

January 01, 2002

Many think that lactation in the mare is not that important, especially compared to the dairy cow, from which milk is taken directly for human consumption. However, the importance of lactation in the mare must not be underestimated. Indeed, some... Read More

Article

In the Aftermath of Birth--Retained Placenta

January 01, 2002

The birth of a foal is a wondrous event; if all goes well, it is over quickly as the mare goes through the three stages of labor. The first stage generally involves restlessness as the mare paces the stall, paws, lies down, gets back up, and... Read More

Article

Foaling Problems

December 01, 2001

A medical doctor once told me, "There’s only a 1% chance that a problem will develop, but if it develops in you, then it’s 100% a problem." So it goes with foaling: Foaling difficulties occur in less than 1% of births, but if it’s your mare, thi... Read More

Article

MRLS Not Expected To Have Lingering Effects

November 07, 2001

“Our best guess is that mares in foal should produce normal foals, and mares which are open should have no problem getting in foal next year,” stated Dr. John Steiner, a veterinary reproductive specialist with the firm of... Read More

Article

Mating Mares Q&A

November 01, 2001

Readers ask questions of equine reproduction experts

Earlier this year, The Horse made a request to its Horse Health E-Newsletter subscribers: What questions do you have for specialists about breeding your mares? Our e-mail... Read More

Article

Persistent Uterine Infections

October 16, 2001

T he question that begs an answer concerning uterine infections, in the mind of Jim Briddle, DVM, Riverton, Wyo., isn't so much why they occur, but, rather, why they don't occur more frequently.

"It has always been amazing to me," says the... Read More