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Volume 5, Issue 2 (Suppl) J Fisheries Livest Prod
ISSN: 2332-2608 JFLP, an open access journal Aquaculture Summit 2017
May 25-26, 2017
May 25-26, 2017 Osaka, Japan
6th Global Summit on
Aquaculture and Fisheries 2017
Performance characteristics of Nile tilapia (Oreochromis niloticus) fed diet containing selected antioxidants
following ammonia stress
Isagani P Angeles Jr.1, Anna Marie O Dalere1 and Yew-Hu Chien2
1Isabela State University, Philippines
2National Taiwan Ocean University, Taiwan
The study evaluated the growth, haematology, glucose and resistance to ammonia stress of Nile tilapia (Oreochromis niloticus) fed
diets supplemented with different antioxidants. The fish were fed with diet containing 80 mg kg-1 astaxanthin (AX80), 50 g kg-1
malunggay Moringa oleifera (MO50) and 5 g kg-1 nutrafito plus (NP5) or basal diet (C) for 42 d. Weight sampling was conducted every
14 d while survival was monitored daily. Blood was collected to determine the haematological parameters and blood glucose level of
fish before and after ammonia stress test. Wf, WG and SGR of NP5-fish were significantly higher than C-fish but comparable to AX80-
and MO50-fish. However, other parameters such as PER and FCR were not significantly different among all treatments. There were
significant results in some haematological parameters, glucose level and survival before and after ammonia stress. Before ammonia
stress, RBC of NP5-fish was significantly higher among treatments while HCT of NP5-fish was significantly higher than MO50-fish.
After ammonia stress, HGB of AX80-fish was significantly higher than C-fish but comparable to MO50- and NP5-fish. On the other
hand, RBC of NP5-fish was significantly higher than MO50- and C-fish. Moreover, HCT of NP5-fish was significantly higher than
C-fish. Glucose level of NP5 was the lowest among treatments. In addition, AX80- and NP5-fish showed significantly higher survival
than the C-fish. These results indicated that fish fed diet supplemented with nutrafito plus improved growth performance, stabilize
some haematological parameters and glucose level and improved survival of O. niloticus exposed to ammonia stress.
J Fisheries Livest Prod 2017, 5:2 (Suppl)