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"The milking production levels in the US are three to four times higher than levels in China; maybe even five times or more compared to cows in India and some other countries," Professor Jerry Yang told BBC News. "Therefore cloning could offer technology for duplicating superior farm animals. However, all the products from these cloned animals must be safe for human consumption. ...and it is a major issue for scientists to provide a scientific basis for the data and information to address this question."

As USA Today reports, there is currently no law governing the sale of meat or milk from the estimated 1,000 to 2,000 cloned farm animals in the USA. But since 2003, the US Food and Drug Administration (FDA) has asked producers to voluntarily keep the meat and milk of these animals, and that of their offspring, out of the food supply.

Wired News reports that companies like ViaGen and Cyagra, which offer livestock-cloning services, have also been waiting for several years for a final say from the FDA.

"For the United States agricultural industry, (cloning) can reduce the number of cows necessary for milking," said Jerry Yang "They can have a pleasant environment and produce even more milk." He also said that cloning the cattle from United States, where genetic breeding is more advanced, could save developing countries 50 years of breeding.

The idea of cloning animals for human consumption is not without its critics. First, there are the welfare concerns, as most cloned animals do not make it to term before being born, and many of those that do are born deformed or prone to illness. The Humane Society of the United States has asked for a ban on milk and meat from clones for just this reason. Second, there is still the concern that healthy clones may have subtle defects that could make their food products unsafe to eat.

As the Washington Post reports, some critics are asking why it is necessary to clone cows that produce huge amounts of milk when surpluses, rather than shortages, are the main problem facing the U.S. dairy industry today.

There was also a surplus of milk back when Monsanto introduced their genetically engineered recombinant Bovine Growth Hormone (rBGH) to the marketplace a couple of years ago. It is reported to have caused all sorts of problems. The dairy cows became much more susceptible to udder infections called mastitis, resulting in pus in the milk, and great pain for the cows. Those cows must be treated with antibiotics, which of course make their way into the milk that we drink. That is a matter for public concern, especially when resistance to antibiotics is becoming a major health issue for us all.