Concern about arsenic pollution in pig feed of 14 Enterprises

Introduction: a series of chain reactions were triggered by the concentrated outbreak of Jiaxing dead pig throwing into the river in March, especially the heavy metal pollution, especially arsenic pollution, caused by the dead pig Although 30 floating dead pig tissues from Huangpu River and upstream waters have been tested for arsenic by Shanghai veterinary feed testing institute, none of the samples have been detected for arsenic At the same time, the relevant person in charge of the Ministry of agriculture also clarified that organic arsine preparation was added to the feed, rather than inorganic arsenic, and the organic arsine entering the animal body through the feed additive was basically discharged from the feces in its original form If it can be used in a standardized and reasonable way, the residue will not exceed the standard The public's doubts about GUV have not been dispelled by the above-mentioned statements Instead, a random inspection report on the feed industry issued by the Ministry of agriculture at the end of last year makes people more suspicious According to the official website of the animal husbandry department of the Ministry of agriculture, the 2012 national feed quality and safety monitoring results reported by the general office of the Ministry of agriculture show that there are 34 enterprises that do not meet the feed health standards, of which 14 enterprises produce pig feed with arsenic content exceeding the standard In addition to the fact that the arsenic content of GUV exceeds the standard has become a common phenomenon in the feed industry, several research reports obtained by the daily economic news show that although the organic arsenic entering the animal body through feed additives does not cause harm to the growth of pigs, it accumulates in the environment after digestion of pigs, which indirectly threatens the food safety of the public In the report of the Ministry of agriculture, the arsenic content of 14 feed enterprises exceeded the standard, accounting for nearly half of the total sampling enterprises Among them, there were 5 feed enterprises in Jiangsu, Zhejiang and Shanghai that were involved in the pig death GUV "arsenic is added by feed mills, not necessarily by pig farms." Hu Dinghuan, a researcher at the Institute of rural economic development, Chinese Academy of Agricultural Sciences, told the daily economic news that "almost all feed factories add arsenic to pig feed in order to make pigs look better." According to GUV data, the United States Food and Drug Administration (FDA) allowed organic arsenic preparation to be used in chicken feed as early as 1964, officially approved it as a growth promoting agent for pigs and chickens in 1983, and approved the use of Arsenic Preparation by the Ministry of agriculture of China in 1996 At present, there are two common arsenic containing additives, arsanic acid and roxarsone GUV said the head of the Ministry of agriculture also said that organic arsine medicine feed additive has an obvious effect on improving the feed utilization rate of livestock and poultry and enhancing the disease resistance ability In the opinion of the insiders, the use of GUV organic arsine as a drug feed additive is due to the introduction of a large number of foreign pigs in China China's breeding pigs still rely heavily on imports, but many of the imported pigs do not adapt to the domestic climate and health conditions, often sick Sun Hongbo, a doctor from the Academy of Agricultural Sciences, said that this has forced farmers to add corresponding antibiotics, trace elements such as arsenic and heavy metals such as copper Sun Hongbo's research also showed that the addition of arsanic acid can make the intestinal wall tissue of pig better absorb nutrients, promote the assimilation of protein and fat, effectively inhibit intestinal microorganisms such as Escherichia coli and Salmonella, improve the formation of organic pigments, and make animal skin ruddy and shiny Heavy metals and faeces "take off" GUV in addition to the above-mentioned random inspection report of the Ministry of agriculture, feed arsenic has become a "serious disaster area", Dong Liangjie, who is certified as the inventor of micro nose arsenic and heavy metal filtration technology on Weibo, also said that Professor of public health of Johns Hopkins University found that China's feed arsenic content is high Dong also said that inorganic arsenic through the food chain, to consumers, contacts and the environment According to GUV researchers, arsenic is almost non-toxic, but most of arsenic oxides and salts are highly toxic compounds, inorganic arsenic is more toxic than organic arsenic, trivalent arsenic is more toxic than pentavalent arsenic In the view of industry insiders, because arsenic and other elements can not be completely digested and absorbed by pigs, a large part of them will be excreted with feces, but this situation has encountered the problem of difficult handling in China GUV According to a research report of a Sino US cooperative research team on three 10000 pig farms in Beijing, Jiaxing and Putian, Zhejiang Province, researchers have detected nearly 150 drug-resistant genes in the faeces of three 10000 pig farms in Beijing, Jiaxing, Zhejiang Province and Putian, Fujian Province, as well as trace elements such as arsenic 。 GUV researchers first collected pig manure from three large pig farms, and then collected samples in the soil near the pig farms As a control, they collected soil samples from primitive forests in Putian, Fujian Province, as well as fecal samples from U.S pigs that were not fed antibiotics.