(01 of09)
Open Image ModalA dead pig floats on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo) (credit:AP)
(02 of09)
Open Image ModalDead baby pigs float on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo) (credit:AP)
(03 of09)
Open Image ModalWorkers look for dead pigs floating on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko) (credit:AP)
(04 of09)
Open Image ModalA resident looks at a dead pig floating on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko) (credit:AP)
(05 of09)
Open Image ModalA dead pig floats on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko) (credit:AP)
(06 of09)
Open Image ModalA dead pig floats among the rubbish on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko) (credit:AP)
(07 of09)
Open Image ModalA dead pig floats on the river Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko) (credit:AP)
(08 of09)
Open Image ModalAuthorities check the dead pigs, not seen, which have been pulled out from the river on a barge Monday, March 11, 2013 on the outskirts of Shanghai, China. A recent surge in the dumping of dead pigs upstream from Shanghai - with more than 2,800 carcasses floating into the financial hub through Monday - has followed a police campaign to curb the illicit trade in sick pig parts. (AP Photo/Eugene Hoshiko) (credit:AP)
(09 of09)
Open Image ModalIn this photo taken Thursday March 7, 2013 and made available Sunday, March 10, 2013, dead pigs are strewn along the riverbanks of Songjiang district in Shanghai, China. Chinese officials say they have fished out 900 dead pigs from a Shanghai river that is a water source for city residents. Officials are investigating where the pigs came from. A statement posted Saturday on the city's Agriculture Committee's website says they haven't found any evidence that the pigs were dumped into the river or of any animal epidemic. (AP Photo) CHINA OUT (credit:AP)