Antibiotics are used in animal feed to prevent disease and promote growth.
In one experiment, scientists are replacing antibiotics with mixtures of antioxidants and probiotic bacteria. Other experiments include giving animals cranberry extract to treat intestinal necrosis, and trying essential oils as immune boosters.
Gabriel Piette, a researcher with Agriculture Canada who is involved in the experiment exploring alternatives to antibiotic use, told CBC-TV's Marketplace that the Treasury Board is spending $4 million on various projects across the country.
The research will wrap up in 2013.
The experiments on alternative treatments are revealed in a letter signed by Agriculture Minister Gerry Ritz, and sent to members of the public who wrote letters of concern to the federal government after viewing a Marketplace episode about the overuse of antibiotics in chickens.
In that episode, Marketplace tested 100 samples of chicken from major grocery stores across Canada and found widespread contamination with superbugs — bacteria resistant to antibiotics crucial to human health. more
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