Year-end Sale % OFF 
Abstract
Eight larval-rearing trials were conducted to evaluate the growth and survival of milkfish ( Chanos chanos) larvae under an untested feeding regime during the 1988 spawning season. The feeding regime consisted of phytoplankton, rotifers and brine shrimp nauplii. An average survival of 32.7% at 30 days posthatch was reached. Final harvest density for the eight trials ranged from 4.1 to 6.8 juveniles per 1. The percentage of survival at 30 days posthatch was found to be negatively correlated to initial stocking density ( r =−0.84, P<0.01). The greatest mortality occurred between days 5 and 10 of each 30-day trial. The temperature ranged from 25.3 to 26.5°C. Growth did not differ significantly among trials. The average total length at day 30 for each of the trials was 17.3±0.12 mm. The growth curve was expressed by the following equation: L n=0.039(day)+1.67 r 2=0.96,P<0.01 Under this feeding regime, rotifers were first observed in the digestive tract at 80 h posthatch. Growth of fed and unfed larvae did not differ until 124 h posthatch. A linear regression, relating satiation level and normal feeding to larval size during the first 11 days posthatch, was determined.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
