Breeding for the Next Champion: 6 Important Considerations for Broodmares

Key Takeaways

• Miss Hockaday’s racing career was a standout success, earning nearly $262,000 and winning at Remington Park and tracks across four states before retiring sound. 
• Her champion pedigree made her a natural broodmare prospect, prompting owner-trainers Ace and Randy Hare to carefully plan her next chapter after racing.
• Sire selection is critical to broodmare success. Despite limited regional options, Miss Hockaday was bred to elite stallion Shackleford in Kentucky to maximize genetic potential.
• Hormonal management supports fertility and breeding timing. Estrus suppression can improve conception rates, predict cycles, and help breeding programs operate more efficiently.
• Overall mare health directly impacts pregnancy outcomes. Proper body condition, reduced stress, current vaccinations, parasite control, and balanced nutrition all play key roles, according to the American Association of Equine Practitioners.
• Preparation ensures a strong foaling outcome. Meeting nutritional demands late in gestation and having foaling supplies ready supports both mare and foal health.

Miss Hockaday continues winning streak, finishing first at Remington Park in Oklahoma City. Photo Credit: Remington Park.

The racing career of Thoroughbred mare, Miss Hockaday, was an immediate success, with career earnings amounting to nearly $262,000, spanning across Oklahoma, Texas, Arkansas and Iowa.

With a champion bloodline harkening to Thoroughbred greats like Seattle Slew and Northern Dancer, owner-trainer, husband-and-wife duo, Jearl (Ace) and Randy Hare, decided her second career would be as a broodmare, continuing on her legacy.

“To see Miss Hockaday’s racing success, and to continue her on as a broodmare, was amazing,” said Randy Hare, co-owner of Hare Racing Stables in Oklahoma City. “She ran a lot of races and beat a lot of great horses. With such high earnings, we only paid $800 for her. It was a very exciting time, and she retired from racing completely sound.”

With her success on the track, it was a paramount decision to select the best possible sire for Miss Hockaday’s first foal.

“Living in Oklahoma, we don’t have a large pool of premier stallions to choose from,” said Hare. “I got her to the best stallion I could, and that was in Kentucky.”

Miss Hockaday was bred to a leading sire, Shackleford, who after retiring in 2012 with $3,090,101 in earnings, cashed in with an initial stud fee of $20,000. The foal, Hareraising, was sold at Keeneland and soon embarked on her racing career.

A mare’s health leading up to breeding is critical for the success of conception, as well as a healthy foal.

Consider These 6 Important Factors for Broodmares and Successful Breeding:

Suppress estrus for improved fertility with Regu-Mate®, Altren® Or Ovamed®.

Estrus suppression will help you predict estrus, as well as improve a mare’s fertility. Regu-Mate facilitates breeding earlier in the season by helping transitional mares cycle regularly. Scheduled breeding with Regu-Mate helps breeding barns manage costs of shipped semen, reduce number of stallion collections needed and schedule the estrous cycles of donor and recipient mares for embryo transplants. By administering Regu-Mate or Ovamed, mares will return to estrus within five days following treatment.

Ensure mares are at a healthy weight.

Mares should enter the breeding season fit and gaining weight for better chances of successful conception, according to the American Association of Equine Practitioners (AAEP).

Eliminate stress as much as possible.

Stress can cause a mare’s level of Progesterone to drop. This hormone is critical to maintain pregnancy. Illness can cause the mare's system to secrete prostaglandins, which may cause foal loss (commonly referred to as abortion), according to the AAEP.

Maintain current vaccinations.

Protect against abortions in pregnant mares through vaccinations against Eastern and Western encephalomyelitis, West Nile virus, influenza and tetanus at the beginning of pregnancy. Administer booster vaccinations one month before foaling to increase the antibody level in the mare's colostrum to help protect the newborn foal from disease risk. The AAEP also recommends mares be vaccinated against equine rhinopneumonitis at five, seven and nine months' gestation.

Protect the mare and foal from parasites.

As the mare is the primary source for her foal’s parasite risk, it is important for her to be on a safe and effective deworming schedule, with guidance on frequency and timing provided by your veterinarian.

Ensure nutritional needs are met.

As the foal continues to grow, especially during the last four months of pregnancy, a mare’s energy needs will increase. Provide enough quality forage and grain to meet these heightened energy requirements. When it comes time for your mare’s big day, make sure you have everything needed with this Professional Foaling Kit.

Continue on the legacy. Ensure successful conception through excellent broodmare health and these proven solutions for improved fertility, Regu-Mate and Ovamed.

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