the American Institute of Certified Public Accountants(1996) and the Canadian Institute of Chartered Accountants(1986) recommended the historic cost, considering also the possibility of realizable value as an alternative. The French PGCA adhered also to the historic cost principle. However, Kroll(1987) regretted that the complexity in asset valuation and accounts was an important barrier to its use in practice. Elad(2004) points out that simplicity is not a merit of fair value where does not exist an active market for a biological asset. Argile's and Slof(2001) stated that IAS 41 conceptual's framework has already been in fact.