Hoof conformation and performance in the racing Thoroughbred in Macau.

The research article evaluates the relationship between hoof conformation and race performance in Thoroughbred horses in Macau. It suggests that lower pastern-hoof angle (PH) correlates with better performance on a turf track, while hoof-ground angle (HG) and mediolateral hoof angle (ML) have no apparent impact on racing outcomes.

Methodology

• The study records a total of 1570 starts from 636 horses and equally divides meetings between sand and turf tracks.
• The researchers measure the hoof-ground angle (HG), pastern-hoof angle (PH), and a mediolateral hoof angle (ML) of the left forelimb of each starter in a race over a 3-month period. They collect and analyze these measurements using a Finnegan hoof gauge and digital photographic images.
• The performance of the horses on the track was categorized into wins and places (1st to 3rd positions).

Results

• The findings show no association between the chances of winning or placing first, and the hoof-ground angle (HG), whether measured using a gauge or via photographic images.
• The same applies for the mediolateral hoof angle (ML); there was no correlation between this aspect of hoof conformation and the race outcome.
• By contrast, there was a significant negative association between pastern-hoof angle (PH) and the probability of winning on a turf track. Specifically, for each 1° decrease in PH, the odds of winning increased by a factor of 1.06.
• There was no association found between the chances of winning or placing on a sand track and PH.

Conclusions

• The study concludes that the hoof conformation measurements HG and ML aren’t directly tied to racing performance in Macau’s Thoroughbreds.
• On the other hand, lower pastern-hoof angle (PH) was associated with better racing performance on a turf track.
• The researchers recommend further investigation into the factors that impact PH and explain its connection to racing performance.
• The study’s results emphasize that PH is associated with racehorse performance on turf tracks, information that could be useful in the management and selection of Thoroughbred racehorses.