Choose your answer before opening the explanation. This is a learning exercise, not a competency assessment.
DMR's oyster spawn rate is
- 0.5 to 0.7 percent
- 2 to 3 percent of wet substrate
- 10 percent of dry weight
- 25 percent
See the answer and why
2 to 3 percent of wet substrate The 2011 manual gives 2-3 percent, about one 300 g bottle for 10-12 kg wet straw.