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Pig died of arsenic and attracted attention
The 4C5 China Feed Industry Information Network, dedicated to the feed industry and serving animal husbandry, provides valuable insights into agricultural developments. This platform not only supports the feed sector but also promotes the overall growth of livestock farming.
Organic arsenic is sometimes added to animal feed to enhance growth and improve the appearance of livestock, such as making their fur appear redder and more vibrant, which can be beneficial for marketability. However, this practice has sparked controversy, especially after rumors emerged about "arsenic poisoning in pigs."
In response to these concerns, the Ministry of Agriculture denied the claims that dead pigs were a result of arsenic poisoning from feed additives. Despite official statements clarifying that the dead pigs were not diseased but rather died naturally due to cold or other non-harmful causes, public skepticism remained high.
The incident involving thousands of floating dead pigs in the Huangpu River triggered widespread speculation. While authorities emphasized that water quality was unaffected, many people still believed in the rumor that pigs had died due to arsenic poisoning from feed. This fear was further fueled by broader societal issues, such as reduced pork demand during the Spring Festival and the impact of anti-corruption campaigns on the meat market.
Experts like Zhu Yiwei, an associate professor at China Agricultural University, attempted to debunk the myth through science-based explanations, but they faced backlash from some netizens who felt the information was misleading. The government eventually addressed the issue by conducting tests on samples from the dead pigs, which found no trace of arsenic.
Arsenic exists in both organic and inorganic forms, with inorganic arsenic being more toxic. In contrast, organic arsenic is considered less harmful. Studies have shown that while inorganic arsenic is commonly found in food sources like grains and vegetables, seafood often contains more organic arsenic, which is generally safer.
The debate around arsenic in feed is not new. In 2011, the U.S. Food and Drug Administration (FDA) discovered higher levels of arsenic in chicken livers due to the use of a drug called Roxarsone. Although the amounts were deemed harmless, the company voluntarily withdrew the product from the market. The FDA later warned that if further studies confirmed its carcinogenic effects, it would be banned entirely.
Roxarsone was first approved for use in poultry in the U.S. in 1964 and later expanded to pigs in 1983. Globally, arsenic compounds have been used in animal feed for decades, with countries like Japan and several Latin American nations allowing their use. In China, organic arsenic was permitted as a feed additive under the "Guidelines for the Use of Feed Drug Additives" issued in 2001.
Despite its long history, the safety and regulation of arsenic in feed remain topics of ongoing discussion. As consumers become more aware of food safety, the need for transparent and accurate information becomes even more critical. Understanding the difference between organic and inorganic arsenic, as well as the regulations surrounding its use, is essential for informed decision-making.
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