The Australian Egg Corporation Ltd (AECL) said that it takes the allegations of egg substitution very seriously.

AECL Managing Director James Kellaway said he was very concerned that an Australian egg farmer might have breached the Competition and Consumer Act 2010.

"The Australian egg industry is very concerned by the allegation that an egg producer might have tarnished the reputation of a hard working family-based farming industry which provides close to 13 million eggs a day to the Australian community," Mr Kellaway said.

Mr Kellaway said the egg industry will only ever support law-abiding egg farmers who are ethical in their business practices and genuine in their marketing behaviour.

"We are all about truth-in-labelling and ensuring consumers get what they pay for. Egg farmers of Australia fully support the watchful eye of the law over the egg industry and will assist the ACCC if requested in any investigations of malpractice as the industry has nothing to hide," he said.

"It is important to note that the vast majority of egg farmers are honest, law-abiding people. As egg farmers from around the world, we care about: producing the highest quality, safest product; our environment; providing choice; the welfare of our hens; and feeding our growing population," Mr Kellaway said.