Exogenous xylanase improves growth, protein digestibility and digestive enzymes activities in Nile tilapia, Oreochromis niloticus, fed different ratios of fish meal to sunflower meal

2019 ◽  
Vol 25 (4) ◽  
pp. 841-853 ◽  
Author(s):  
Mohamed S. Hassaan ◽  
Eman Y. Mohammady ◽  
Mohamed R. Soaudy ◽  
Amina A. S. Abdel Rahman
Keyword(s):  
Oreochromis Niloticus ◽  
Digestive Enzymes ◽  
Nile Tilapia ◽  
Fish Meal ◽  
Protein Digestibility ◽  
Sunflower Meal ◽  
Enzymes Activities ◽  
Nile Tilapia Oreochromis Niloticus

Yeast fermented sunflower meal as a replacer for fish meal in diets of the Nile tilapia, Oreochromis niloticus

2015 ◽  
Vol 19 (2) ◽  
pp. 65-72
Author(s):  
Magdy Soltan ◽  
Mohammed Abdella ◽  
Mohammed Hassaan ◽  
Mohammed El-Ashry ◽  
Gamal El-Syaad
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Fish Meal ◽  
Sunflower Meal ◽  
Nile Tilapia Oreochromis Niloticus

scholarly journals Optimal Replacement of Fish Meal Protein by Stick Water in Diet of Sex-Reversed Nile Tilapia (Oreochromis niloticus)

Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 521
Author(s):  
Uraiwan Wattanakul ◽  
Wattana Wattanakul ◽  
Karun Thongprajukaew
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Fish Meal ◽  
Specific Activity ◽  
Hematological Parameters ◽  
Dietary Treatment ◽  
Normal Liver ◽  
Carcass Quality ◽  
Liver Histopathology ◽  
Nile Tilapia Oreochromis Niloticus

The effects of replacing fish meal (FM) protein with stick water (SW) were investigated during the market stage of sex-reversed Nile tilapia, Oreochromis niloticus (18.49 ± 0.31 g initial body weight). The FM protein was replaced with SW for 10% (10SW), 20% (20SW), 30% (30SW) and 50% (50SW) of the FM. The completely randomized design was conducted in outdoor 15 floating baskets (1.5 × 1.5 × 2 m), comprising three replications with 50 fish each, over an 8 month trial. At the end of the experiment, no differences in survival, growth performance or feed utilization were observed across the dietary treatments (p > 0.05). A significant change in lipase-specific activity was caused by the replacement, without changes to trypsin, chymotrypsin or amylase activities. The fish in all dietary groups exhibited normal liver histopathology, but the fish fed a diet containing SW showed higher numbers of cells accumulating lipids as compared to fish fed the baseline 0SW dietary treatment. Hematological parameters were similar across the five dietary groups. Only fish fed the 20SW diet had superior carcass quality compared to the baseline 0SW group, in terms of crude protein and lipids, but lower or higher replacement levels had negative effects on carcass quality. Findings from the current study support the replacement of FM protein with SW at a level of 20% in the diet of sex-reversed Nile tilapia reared to the market stage. Higher replacement levels might be possible with the supplementation of fatty acids.

Substitution of fish meal with raw or treated cowpea (Vigna unguiculata L Walp, IT86-D719) meal in diets for Nile tilapia (Oreochromis niloticus L.) fry

2011 ◽  
Vol 17 (2) ◽  
pp. e101-e111 ◽  
Author(s):  
L. OLIVERA-CASTILLO ◽  
M. PINO-AGUILAR ◽  
M. LARA-FLORES ◽  
S. GRANADOS-PUERTO ◽  
J. MONTERO-MUÑOZ ◽  
...  
Keyword(s):  
Vigna Unguiculata ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Fish Meal ◽  
Nile Tilapia Oreochromis Niloticus

scholarly journals Optimizing fish meal-free commercial diets for Nile tilapia, Oreochromis niloticus

Aquaculture ◽  
2016 ◽  
Vol 452 ◽  
pp. 357-366 ◽  
Author(s):  
Joao Fernando Koch ◽  
Steven D. Rawles ◽  
Carl D. Webster ◽  
Vaun Cummins ◽  
Yuka Kobayashi ◽  
...  
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Fish Meal ◽  
Commercial Diets ◽  
Nile Tilapia Oreochromis Niloticus
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