This SourceWatch article is being publicized in connection to Mehmet Oz:
In 2004, complaints about Dr. Mehmet Oz’s dog experiments were cited in a report from an internal investigation into allegations of poor animal care made by Dr. Catherine Dell’Orto, a post-doctoral veterinarian. [5], [6] See also individual reports of Dr. Oz's dog experiments. [7] According to the report, "highly invasive and stressful experiments" on dogs were performed without a "humane end point." AWA violations included a litter of whelped puppies killed by painful cardiac injection:
"The screams of these puppies could be heard through closed doors. All of these puppies, lying in a plastic garbage bag, were killed in the presence of their litter mates."[8]
Subsequent applications for grants to the National Institutes of Health (NIH) by Dr. Oz have been denied.[9] In 2004, Columbia paid $2,000 in fines to the USDA. [10]
However, all of the reference citations point to ColumbiaCruelty.com and StopAnimalTests.com, both of which were run by the animal rights group PETA and (more importantly) no longer exist.
I found one independent reference to animal cruelty at Columbia University in the early 2000s, but it doesn't involve Dr Oz.