After one farmer admitted to dumping thousands of dead pigs into the river, Chinese officials now say he may not have been the only source.<br/> <br />State media had said the 6,000 pig carcasses dredged from a river supplying tap water to Shanghai came from Jiaxing City, in the Zhejiang province<br/> <br />But on Friday local Chinese officials said the pigs may not all come from Jiaxing.<br/> <br />The city's deputy mayor said ear tagging on the pigs showed some of the carcasses originated from other areas.<br/> <br />China's state television, CCTV, has put the official number of dead pigs pulled out of the river at 8,000<br/> <br />Authorities found traces of a common pig virus in some of the rotting animal corpses dredged up this week.<br/> <br />Industry insiders say farmers likely dumped them a common habit in an industry which has no system of compensation for losses from disease.
