These figures belong to the named source and method. Historical costs are not current quotations. A value without its stage, material basis or measurement location is not a farm instruction.
| What is measured | Value and basis | Source and limitation |
|---|---|---|
| Oyster spawn rate | 2-3 % of wet substrate | ICAR-DMR manual, 2011. One 300 g bottle for 10-12 kg wet straw; the folder gives 10 kg spawn per quintal dry straw. |
| Milky spawn rate | 4-5 % of wet substrate | ICAR-DMR milky folder. Deliberately higher than oyster; 40-50 g per kg wet straw. |