By Li Hongmei

Despite the fact that the Chinese government has implemented measures to prevent pork made from diseased pigs from entering the market, police in southern China's Guangdong province busted a factory that sold over 150 tonnes of pork ribs made from diseased pigs to stores in Shenzhen City, according to Xinhua news agency.

Police in Maoming, Guangdong, found a man surnamed Zhou ran a secret pork processing factory and produced pork ribs from pigs which had died from disease. The man found using diseased pigs could reduce costs by 60% to 70% and began buying the pigs last March. He used packages made in Shandong or even Sichuan to disguise the origin of the pork ribs and then sold them to a supplier, who resold them to a wholesaler selling pork in Shenzhen.

Zhou confessed that he has sold over 150 tonnes of the ribs which contain a level of the animal drug Oxytetracycline that is 12 times higher than the permissible amount.

The government has banned the slaughter, consumption, sale and transport of diseased pigs.

Still, some profiteers constantly venture out to cross the "red line" continuing to sell diseased pigs to the public.

Police in Anhui province on Thursday arrested a migrant worker who sold more than 20 tonnes of sausages made from diseased pig meat to nine counties in Anhui, Jiangsu, Henan and Shandong provinces. Fujian province in southern China also reported 40 tonnes of diseased pig meat in May.