These instances are among dozens that Grey2K compiled in a list and sent to the Daily Mail.
Grey2K also used the data it received and cross-referenced the information with video replays on the track's website to create a short montage of some of the injuries.
To view the group's video, click here http://www.youtube.com/watch?v=GsDOFMWo5Nw/. Some readers might be disturbed by the footage.
The numbers could be higher than what is reflected in the records. To date, there is no exact record of the number of injuries at the track for the past six years.
More than 13 months' worth of data is missing from the state's records. Racing Commission officials simply said they do not have those records on file and do not know where they are.
The Daily Mail also attempted to interview Dr. Mark D. Webster, the state-appointed veterinarian at the track. Webster's records are the ones referenced in this story.
Webster agreed only to answer questions in writing. In his response, he said that he did not know which records were not given to Grey2K and that the Racing Commission did not consult him on the records request.
Webster could not say if he believed the number of injuries at Mardi Gras was higher or lower than at other tracks. He said he has not seen data for other tracks.
But Theil said data from the missing months is referenced in some of the other documents that Grey2K received. Based on those references, he believes the state records are accurate or at least close to the total number.
"All we can do, in my view, is look at the data and try to make sense of it, and at the end of the day, arrive at what the state says," Theil said. "This is a regulatory agency that is charged with overseeing this industry."
Some discrepancies also exist between Adkins' personal records and those provided by the state.
For example, state records show there were 25 deaths in 2009, while Adkins' figures show there were 30.
Adkins said neither the ASPCA nor Grey2K is to be trusted. He has previously accused Grey2K of having ulterior motives. He reiterated that allegation and said Grey2K should not be considered a reputable source.
Instead, he suggested the Humane Society of the United States should be contacted for comment.
The Daily Mail called a spokesman for the Humane Society and first was told it is the policy of the organization to forward all media inquires regarding greyhound racing to Grey2K.
Michael Markarian, chief operating officer with the Humane Society, then contacted the newspaper to say the organization is adamantly opposed to the greyhound racing industry.
Markarian was reluctant to say whether injuries at Mardi Gras were higher or lower than elsewhere.
"Many states don't even keep records of injuries," he said.
But he said greyhound racing is declining in popularity across the nation and should be brought to an end.
"It's a dying industry," he said.
Contact writer Billy Wolfe at billy.wo...@dailymail.com or 304-348-4843.