A Texas veterinarian accused of secretly keeping some animals that owners believed were euthanized alive for blood transfusions turned himself in Wednesday night on the charge of cruelty to animals non-livestock.

Dr. Lou Tierce, of Fort Worth, who was still working at his clinic earlier in the day, is under investigation for claims that he kept dogs alive and used their blood for transfusions and other medical experiments, MyFoxDFW.com reported.

He was released on $10,000 bond.

Police and medical board investigators raided the Camp Bowie Animal Clinic on Tuesday, acting on a complaint filed by Marian Harris against Tierce.

Former clinic employee Mary Brewer said she was working there when Sid, Harris' dog, was allegedly supposed to be euthanized. But six mother later, she says she saw Sid alive and gave the Harris family the disturbing news.

"I remember coming in and them extracting blood from Sid, and basically shaving him, extracting his blood for the other animal upstairs,” said Brewer.

According to the complaint, "The clinic was using Sid (and other dogs) for blood transfusions and other experimental treatments.”

Harris actually managed to steal her dog back, and then confronted Tierce, who reportedly declined to comment on the allegations.

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