Dr. Raul Bras, Gustavo Delgado, Jr. Join TDN Writers’ Room Podcast

There was a lot to cover this week on the TDN Writers' Room podcast presented by Keeneland, including the upcoming GI Travers S. and last week's gut punch that was the deaths on back-to-back days of Grade I winners Art Collector (Bernardini) and Cave Rock (Arrogate), both from laminitis.

That's why this week's podcast had two Green Group Guests of the Week.

Dr. Raul Bras, a specialist in laminitis who practices at Rood & Riddle Equine Hospital, explained why laminitis remains such a serious problem and gave an update on the efforts being made within the veterinary community to combat the condition.

 

With a victory in the GI Kentucky Derby on his record, Mage (Good Magic) has already had a standout campaign. But his connections are looking for more and will be looking for a second Grade I win on the year in Saturday's Travers. To get the latest on Mage, assistant trainer Gustavo Delgado, Jr. shared his thoughts on the 10-furlong feature. He said the entire Mage team was very pleased with the colt's second-place showing in the GI TVG.com Haskell S., pointing out that he wasn't fully cranked.

“We really were aware that he wasn't 100% for the Haskell,” Delgado said. “Not even close. So we were happy with the effort.”

Mage has proven he can win at the highest level, but he has not proven that he can beat Forte (Violence), the morning line favorite in the Travers. He finished behind him in both the GII Fountain of Youth S. and the GI Curlin Florida Derby. Why might it be different this time?

“The thing that has changed the most is the lack of experience he had before,” Delgado said. “He was in the Fountain of Youth in only his second start. That's what we had to do. We had to do that in order to gain the points to get into the Derby. If we hadn't done that we probably wouldn't be talking about a Derby winner because he got 10 points in the Fountain of Youth and then 40 in the Florida Derby. He's more experienced now. He's not just a baby. He's more mature and we got to know him better, too.”

Elsewhere on the podcast, which is also sponsored byhttps://coolmore.com/https://lanesend.com/ the Pennsylvania Horse Breeders Association, Kentucky Thoroughbred Owners and Breeders, NYRABets.com, WinStar Farm, XBTV.com, Stonestreet Farms, Lane's End and https://www.threechimneys.com/ West Point Thoroughbreds, the team of Zoe Cadman, Bill Finley and Randy Moss took a look back at the GI Alabama S. and the front-running win by Randomized (Nyquist) and the impressive debut of the latest foal from Beholder (Henny Hughes), Tamara (Bolt d'Oro). The filly earned 'TDN Rising Star' status when she broke her maiden Aug. 19 at Del Mar. The team also took a moment to remember owner and breeder Anthony Manganaro of Siena Farm, who passed away last week at the age of 79.

To listen to the audio of the podcast, click here; to watch the video, click here.

The post Dr. Raul Bras, Gustavo Delgado, Jr. Join TDN Writers’ Room Podcast appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.

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Ask Your Veterinarian Presented By Kentucky Performance Products: Identifying And Managing White Line Disease

Veterinarians at Rood and Riddle Equine Hospital answer your questions about sales and healthcare of Thoroughbred auction yearlings, weanlings, 2-year-olds and breeding stock.

Question: What is white line disease (WLD) and how can it be managed?

Dr. Raul Bras: Horses' hooves are subjected to a variety of influences that can impact soundness, including breed, limb conformation, and environment, which can change the shape of a foot. The function of the hoof can be affected by the environment, discipline, exercise, and farriery. The hoof has the ability to respond relative to its structural characteristics, its natural tolerance of the mechanical challenges, or by adaptation with changes in growth rate and shape. External alterations of the hoof capsule can be evident to the astute eye. However, many crucial changes go unnoticed until lameness or other problems are evident.

Many foot-related lameness involves hoof capsule distortions. Hoof capsule distortions occur when the tensile, compressive, or shearing forces on the hoof exceed the capacity of the hoof capsule components to withstand them. There are three basic situations in which the loading capacity of a structure can be exceeded: normal load on an abnormal structure, abnormal load on a normal structure, and abnormal load on an abnormal structure. The latter is a more reliable recipe for distortion and perhaps outright destruction of the compromised component.

WLD is a syndrome associated with structural defects of specific parts of the hoof and is characterized by progressive hoof wall separation that occurs within the non-pigmented Stratum Medium layer of the hoof wall. WLD describes a set of symptoms, rather than one specific cause of those symptoms.

The name of white line disease should not be confused with the anatomical white line that is visible around the edges of a horse's sole. Rather, it deals with the non-pigmented (or “white”) layer of the hoof wall. The hoof capsule's horn is made of three layers: the stratum externum is the stronger, denser layer of tubules that are pigmented in black feet. The stratum medium is nonpigmented. has a less dense configuration of horn tubules. stratum internum  (inner layer) is the laminae and its blood supply that anchors the coffin bone to the wall.

WLD is often confused with laminitis, as the clinical and radiographic evidence are similar with a few key differences. In WLD, the separation seen in the foot will originate from the solar surface, whereas in laminitis, the separation starts in the dermal lamellae and continues distally. The air density line of WLD invades the white softer part of the wall via small breaks in the ground surface, and goes unnoticed for long period of time as the horse shows no evidence of discomfort until the capsular rotation reduces sole depth to a painful level. Capsule rotation occurs within the horn wall with WLD, and within the laminae with laminitis.

WLD has an air density lesion that extends from the ground surface and can have irregular borders, often with considerable debris filling the defect. Laminitis has capsule rotation that occurs within the laminae, and the gas line does not extend to the ground surface even when the coffin bone has penetrated the sole. Only after weeks to months from onset does the defect communicate with the ground surface.

The venogram can provide key information to veterinarians and farriers when diagnosing either laminitis or WLD, as it allows them to see areas that are deprived of blood flow.

WLD and laminitis can occur simultaneously when either is very chronic in nature.

The syndrome was first described by Drs. Ric Redden and Al Gabel in the 1970s after they observed that this defect involved the non-pigmented part of the horn. Biomechanical tests have shown that the non-pigmented portion of the stratum medium is the least rigid area of the hoof wall and has the highest water content, which could play a role in the expression of white line disease.

Redden observed that when WLD happens in one foot only, it tends to be in the hoof with a steeper profile or a club foot shape. Additionally, other researchers found a connection between the symptoms of WLD and a fungal infection called onychomycosis. Since then, we have learned the fungus is probably common in equine hooves but isn't present in all cases of WLD. Additional research has searched for an association between symptoms and different types of bacteria, the theory being the symptoms may be a sign of a bacteria that destroys hoof horn. Of course, like fungi, bacteria are also very common in a horse's environment and the bacteria that have been studied seem to be present in some cases of WLD, but not all of them. It seems more likely that bacteria are secondary opportunists which add more damage to a weakened hoof wall but aren't the main cause of damage

As with many other types of foot-related lameness, prevention is much more effective than treatment. Prevention begins with careful observation. It is important that detrimental changes in the foot be recognized early and dealt with appropriately while there is still a chance to preserve the integrity of the foot. Failure to understand the normal structure and function of the equine foot and to manage the foot and the horse accordingly can have deleterious effects.

Treatment for WLD varies from sheer mechanics to wall removal and debridement of the affected areas. Mechanical benefits that can produce medical benefits appear to be a major key to therapeutic and pathological shoeing. A well-made strategic plan based on the basic mechanical requirements of the foot can greatly improve the outcome and success of many podiatry cases. Understanding the basics principles of podiatry allows the veterinarian and farrier to aid in the prevention of foot related lameness, maintain a sounder horse, and implement therapeutic shoeing when necessary.

Dr. Raul Bras is a certified journeyman farrier and veterinarian in the podiatry department at Rood and Riddle Equine Hospital. A member of the International Equine Veterinarian Hall of Fame, Bras graduated from Ross University and completed the farrier program at Cornell University. He is a partner at Rood and Riddle.

The post Ask Your Veterinarian Presented By Kentucky Performance Products: Identifying And Managing White Line Disease appeared first on Horse Racing News | Paulick Report.

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PR Back Ring OBS June Sale: Taking The Temperature Of The 2-Year-Old Market

CLICK HERE TO READ THIS EDITION OF THE PR BACK RING

The latest issue of the PR Back Ring is now online, ahead of the OBS June 2-Year-Olds And Horses OF Racing Age Sale.

The PR Back Ring is the Paulick Report's new bloodstock newsletter, released ahead of every major North American Thoroughbred auction. Seeking to expand beyond the usual pdf presentation, the Back Ring offers a dynamic experience for bloodstock content, heavy on visual elements and statistics to appeal to readers on all platforms, especially mobile devices.

Here is what's inside this issue…

CLICK HERE TO READ THIS EDITION OF THE PR BACK RING

  • Lead Feature Presented By Niall Brennan Stables: After the pandemic ravaged the 2020 juvenile auction and created an uncertain yearling marketplace in which to re-stock, how are consignors feeling as we head into the home stretch of the 2021 2-year-old season? Pretty good, actually.
  • Stallion Spotlight: Harlan Malter of Ironhorse Racing Stable on young Florida stallion Bucchero.
  • Pennsylvania Leaderboard Presented By Pennsylvania Horse Breeders Association: The late stalwart Jump Start continues to reside at the top of the standings by Pennsylvania stallion incentive earnings. Learn more about his reign at the top and the horses that got them there.
  • Ask Your Veterinarian Presented By Kentucky Performance Products: Dr. Raul Bras of Rood and Riddle Equine Hospital on the hoof ailment White Line Disease.
  • The Stat: Examining Florida's leading freshman sires from 2010 to 2020.
  • First-Crop Sire Watch: Stallions whose first juveniles are cataloged in the OBS June sale.

CLICK HERE TO READ THIS EDITION OF THE PR BACK RING

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