IAS 41 provides guidance on accounting for biological assets and agricultural produce. It defines agricultural activity as the management of biological transformation of living animals and plants into agricultural produce or biological assets for sale. Key requirements include: - Biological assets must be measured at fair value less costs to sell, except when fair value cannot be measured reliably. - Changes in fair value of biological assets are included in profit or loss for the period they arise. - Government grants related to biological assets measured at fair value less costs to sell must be recognized in profit or loss when receivable.