Zhu called on rescuers to reveal what they did with the dogs as well as how much money they spent.

"We have no idea where the rescued dogs are," he said, "so it's reasonable to imagine they were killed or eaten by those activists and all the money they collected for the dogs could have been pocketed by the staff."

Of the 80 dogs rescued and in care at an animal hospital, 30 had been registered for adoption by a family, said Qin, director of the Capital Animal Welfare Association. Six had already died of disease, she said.

The China Small Animal Protection Association (CSAPA) had taken in 200 dogs while 10 other animal organizations took three to five dogs each, Qin said. The association on Friday published their accounts revealing that since April 17 they had received 496,455 yuan (US$ 76,454) in donations and so far had spent 336,825 yuan (US$51,871).

Another dog rescue organization, Shangshan Animal Charity Fund, had invited a third-party audit company to examine their work, the Beijing Youth Daily also reported. The audit would help standardize and improve dog rescue efforts, the auditor told the paper.