BEIJING (AP) — China has suspended imports of chicken feet, pig ears and other animal products from seven US companies, including the world's largest meat processor, in an apparent attempt to turn the tables on American complaints about tainted products from China.The American meat had contaminants including salmonella, feed additives and veterinary drugs, according to a list posted on the web-site of China's General Administration of Quality Supervision, Inspection and Quarantine late Friday.

The US and other countries have cracked down on Chinese products since the US Food and Drug Administration found in April that North American dogs and cats were poisoned by tainted Chinese pet food ingredients. Since then, a growing number of Chinese products have been found to be tainted with potentially toxic chemicals and other adulterants.

In recent weeks, Chinese authorities have been prominently announcing their own rejections of imports, including US orange pulp, dried apricots, raisins and health supplements — apparently to show that they are not the only ones with food safety problems.

The Chinese agency said frozen poultry from Springdale, Arkansas-based Tyson Foods Inc., the world's largest meat processor, was contaminated with salmonella.

Frozen chicken feet from Laurel, Mississippi-based Sanderson Farms Inc. were tainted with residue of an anti-parasite drug, and frozen pork ribs from Wichita, Kansas-based Cargill Meat Solutions Corp. contained the leanness-enhancing feed additive ractopamine, the agency said.