This standard presents the general idea that the fair value can be realistically estimated by using deductive hierarchy, which this article will debate, for a better understanding of initial evaluation and consecutive evaluation of biological assets. IAS41 is treating the management of biological assets: increasing the agricultural output, logging, plant cultivation; horticulture and aquaculture. The biological alteration is the process of growing, ageing, production and procreation of
biological assets; these alteration lead to new agricultural produce, or transformation of other biological assets.
In addition, IAS 41 does not contain any specific information referring how often one should estimate the
biological assets. We can conclude that that the estimation must be conducted on each closure, because the
standard does not state any information on how frequent the estimation must be run. As explanation, IASB
stated the availability of fair values on relative expected costs, and the consistent progress of biological