Shocking video shows jockey punching horse

A South Australian jockey has been suspended for a despicable attack on a horse at Port Lincoln on Wednesday.

Shocking footage captured Dylan Caboche punching his mount She's Reneldasgirl in the stomach before a race at the South Australian track.

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The incident happened prior to the Lincoln Sand Supplies - NT & DA Dickson/SABOIS Maiden Plate (1390m), with Caboche handed a two-week suspension for the low act.

Caboche understandably copped plenty of backlash from social media users furious over his actions.

The three-year-old ($101), trained by Allan Jarvis, finished eighth in the 10-horse maiden over 1390 metres.

She's Reneldasgirl was the first of Caboche's seven rides at Port Lincoln on Wednesday, with the apprentice winning the final race on Slide Of Hand.

Thoroughbred Racing SA stewards announced the rider's suspension in a tweet on Wednesday afternoon.

Caboche explained his actions on Thursday, saying he had a "brain fade".

"My actions weren't the greatest," Caboche told Channel 7.

"Striking a horse is obviously not the right way to go about things. It was a brain fade and it shouldn't have happened."

A similarly shocking incident involving Irish jockey Davy Russell happened earlier in the year that led to an investigation from the The Irish Turf Club.

Footage circulated on social media showed the jockey punching a horse in the head after a racing meet in Tranmore, Ireland in August.

The incident was completely missed by stewards at Tranmore, but quickly rose to prominence after Twitter user drewboy uploaded a video that clearly showed Russell lashing out at his horse.

The jockey was handed a four-race ban over the incident.