The peer reviewed study, conducted by a veterinarian and a researcher from the Department of Molecular Medicine at Cornell University, was published in January and inspired an investigative report that was published last week.
The paper reportedly examined case histories of 24 farms in six American states in which fracking occurs, and it is said to be the first peer-reviewed study linking fracking with health issues in animals that are intended for human consumption.
Industry commentators are questioning the fact the 24 farms were not disclosed and that the authors have no track record of environmental investigation.
They also argue the peer-review process "was not very stringent."
To read the investigative report, click here. The full study is available for download below.