Limitations of feed-fed LMB may not be just a function of learning curve. The physiology / morphology may need to change as well. Latter may take more than a few weeks.
Should be easy to find publications supporting morphological changes of sunfish as a function of prey type. From what I have seen, it is likely the changes to LMB are likely to be just as pronounced.
Aquaculture Cooperative Research / Extension Lincoln University of Missouri
