Monday, August 16, 2010

This would alert consumers to false 'free range' claims

Here's something that would help identify the cheating egg producers who charge customers a premium for claiming their eggs are 'free range' when they are from intensively managed flocks often endorsed by the Australian Egg Corporation. At least it would alert consumers as long as 'name and shame' provisions are included in the process.

It was posted a while ago on World Poultry Net - a credible industry forum - but so far the major producers have shown no interest in having their practices under such scrutiny. I wonder why?!!!!!!

A New Zealand researcher has developed a technique to identify the difference between eggs from caged hens and those from free-range and organically-raised hens.

It is believed to be the first time that eggs from different farming systems have been distinguished by using isotope analysis.

The system can have potential within the egg industry to avoid mis-labelling.

Karyne Rogers, of Geological and Nuclear Science's National Isotope Centre in Lower Hutt, New Zealand, compared different brands of off-the-shelf eggs from cage, barn, free range and organic farming regimes.

Using isotope analysis, she found almost all the eggs could be differentiated by relating the carbon and nitrogen found in the egg to the hen's diet.

This was possible as diet directly reflected the type of farming environment where the hens were raised, Dr Rogers said.

Different foods

''Free-range and organically farmed hens normally have access to a wider range of food sources than caged hens, such as insects, vegetation or organic feeds, and this changes the isotope fingerprint of their eggs,'' Dr Rogers said.

The findings, recently published in the Journal of Agricultural and Food Chemistry, showed isotope analysis was a potentially useful technique for identifying eggs from different farming regimes.

The research was performed on egg yolk, albumen and egg membrane to see which egg components gave the best information about the hen's diet.

Effective verification tool

Dr Rogers said the technique held considerable promise for the egg industry as an effective verification tool to guard against mis-labelling.

''The next step is to seek industry funding to work directly with egg producers to further refine the technique so it can be fully tested and applied in the industry.''

We can't wait. It could be a great tool to weed out the shonky operators who run large, industrial farming operations and de-beak their birds. And of course things will get even worse for consumers if the Egg Corporation manages to get its planned 'free range'standards up and running.

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