2.3. Growth and survival
At the end of the 56-day feeding trial, shrimp from each
aquarium were bulk-weighed. Growth was measured by the percentage of body weight gain per surviving shrimp in each
aquarium which was calculated as [10 0 (final body wt_- initial body
wt)/initial body wt] and feed efficiency (FE) which was calculated
as [(final body wt - initial body wt)/feed intake].