"The challenge has to do more with genetics, and the right balance for this fast growing bird, " says Martin Humphries, Feed Sales Director for an English specialist poultry feed supplier.

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Had it been rendered, it could have been turned into an element of a number of products, including chemicals or feed for poultry or livestock, he said.

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Poultry, beef and pork producers, facing rising feed bills, have called for the mandate to be waived.

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Hassan Radmard, head of trade development at the Ministry of Trade and Industry, said Monday that the increase in prices of poultry and dairy products was a result of difficulties in buying animal feed, transporting goods from ports and completing financial transactions because of sanctions, official student news agency ISNA reported.

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Notwithstanding Goldman Sachs conspiracy theories, the prices of corn, soybeans and other animal feed had been climbing steadily as emerging markets consumers developed a piqued appetite for poultry, pork and beef.

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Two years ago, a European Union-wide health alert was sparked when German officials said animal feed tainted with dioxin had been fed to hens and pigs, contaminating eggs, poultry meat and pork at affected farms.

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But since corn is used to feed livestock, any increase in its price will also cause the price of beef, pork, poultry and dairy products to rise.

ECONOMIST: Agriculture