To the end that the seafood industries of this state may prosper and may not be destroyed, no contract or agreement which is designed or intended to promote the advancement and welfare of such industries shall be held to be illegal as a contract, conspiracy, or combination in restraint of trade nor shall the parties to the contract or agreement be penalized or enjoined as trusts, monopolies, conspirators, or combinations in restraint of trade, if the contract or agreement has been approved in writing by the secretary.
La. R.S. § 56:572