Open AccessGrowth performance and feed utilization of juvenile marble goby (Oxyeleotris marmorata) fed acidified diets
Author(s) -
Chui Peng Teoh,
LeongSeng Lim,
Gunzo Kawamura,
Annita Seok Kian Yong,
Rossita Shapawi
Publication year - 2019
Publication title -
borneo journal of marine science and aquaculture
Language(s) - English
Resource type - Journals
eISSN - 2600-8882
pISSN - 2600-8637
DOI - 10.51200/bjomsa.v3i2.1703
Subject(s) - zoology , juvenile , biology , feed conversion ratio , fish <actinopterygii> , meal , goby , weight gain , fishery , fish meal , body weight , food science , ecology , endocrinology
The present study was aimed at evaluating the growth performance and feed utilization of marble goby (Oxyeleotris marmorata) juveniles fed with the acidified diets (AD). In feeding trial I, five fish meal-based diets were prepared [control (pH 6.0), AD 5.3, 4.3, 3.2 and 2.5]. Each diet was fed to triplicate batches of wild-caught O. marmorata (19 fish/ tank; total length, TL = 4.72±0.46 cm) for 8 weeks. The control, AD 5.3, and AD 4.3 treatments were terminated at week 4, due to drastic decline in total feed intake (TFI=0–0.05 g) and weight loss (weight gain, WG = -15.3 to -16.9%) in the fish. The AD 3.2 and AD 2.5 treatments were continued until week 8. Fish fed with the AD 3.2 showed significantly higher (P 3 weeks). Nevertheless, based on the strong preference of the fish for AD, it is worth trying to develop a weaning protocol using these diets as the starter feed and then slowly replacing them with the normal diet.