Nutritional evaluation of protein isolate from rubber seed in the diet of Labeo rohita : Effects on growth performance, nutrient utilization, whole body composition and metabolic enzymes activity

Aquaculturists have been concentrating their efforts to design aquafeeds using agro by-products to reduce feed costs. However, the presence of a wide variety of antinutritional factors (ANFs) in plant materials is one of the major obstacles. For this purpose, a 2x2 factorial experiment was established to evaluate the suitability of canola meal with citric acid (CA) and phytase (PHY) supplementation for growth performance, nutrient digestibility and body composition of Labeo rohita fingerlings. Five isocaloric and isonitrogenous diets; D1 (control; without CA and PHY), D2 (CA 15 g/kg+PHY 1000 FTU/kg), D3 (CA 30 g/kg+PHY 1000 FTU/kg), D4 (CA 15 g/kg+PHY 2000 FTU/kg) and D5 (CA 30 g/kg+PHY 2000 FTU/kg) were fed to fish (mean initial weight 7.61±0.31 g) in triplicates for 90-days. The growth performance was significantly increased while feed conversion ratio was decreased with D3 compared to control and other CA and PHY supplemented groups (P<0.05). Furthermore, higher digestibility (%) of nutrients (dry matter, crude protein and ash) and improved whole-body composition was also exhibited by fish fed with D3 (P<0.05). Hence, the above results elucidate that supplementation of 30 g/kg CA with 1000 FTU/kg PHY could be a useful approach for improved growth performance, nutrients digestibility and body composition of L. rohita.

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Water soaking and exogenous enzyme treatment of plant-based diets: effect on growth performance, whole-body composition, and digestive enzyme activities of rohu, Labeo rohita (Hamilton), fingerlings

Fish Physiology and Biochemistry ◽

10.1007/s10695-011-9511-2 ◽

2011 ◽

Vol 38 (2) ◽

pp. 341-353 ◽

Cited By ~ 8

Author(s):

Biji Xavier ◽

N. P. Sahu ◽

A. K. Pal ◽

K. K. Jain ◽

Sougat Misra ◽

...

Keyword(s):

Body Composition ◽

Growth Performance ◽

Enzyme Activities ◽

Labeo Rohita ◽

Digestive Enzyme ◽

Enzyme Treatment ◽

Whole Body ◽

Exogenous Enzyme ◽

Digestive Enzyme Activities ◽

Effect On Growth

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Interactive effect of citric acid, phytase and chelated mineral on growth performance, nutrient digestibility and whole‐body composition of Labeo rohita fingerlings

Aquaculture Research ◽

10.1111/are.14939 ◽

2020 ◽

Author(s):

Syed Zakir Hussain Shah ◽

Mahroze Fatima ◽

Muhammad Afzal ◽

Muhammad Bilal

Keyword(s):

Body Composition ◽

Citric Acid ◽

Growth Performance ◽

Labeo Rohita ◽

Interactive Effect ◽

Nutrient Digestibility ◽

Whole Body

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Growth Performance and Nutrient Utilisation of (Clarias garienpinus) Fed with Formulated Diet Produced from a Modified Extruder and Durante Commercial Feed

Asian Journal of Fisheries and Aquatic Research ◽

10.9734/ajfar/2020/v10i330183 ◽

2020 ◽

pp. 16-23

Author(s):

O. O. Koyenikan ◽

O. J. Olukunle ◽

O. T. Adebayo

Keyword(s):

Body Composition ◽

Growth Performance ◽

Nutrient Utilization ◽

Proximate Analysis ◽

Whole Body ◽

Feed Conversion ◽

Mean Values ◽

Commercial Feed ◽

Nutrient Utilisation ◽

Significant Difference

A fabricated modified single screw fish feed extruder was used to extrude formulated floatable fish feeds from obtainable available feed ingredients. They were fed to 225 Clarias garienpinus (mean weight of 56 4.22 g) for 120 days in order to compare their nutritional values with that of a commercial feed. The fishes were first acclimatized for a period of 48 hours under laboratory condition. The weight of the fishes were taken every two weeks and recorded in comparison with the commercial feed (Durante) which served as the control. At the end of the feeding trials, the fishes were weighed, sacrificed and analysed for whole body composition, haematological status and proximate analysis. At the end of the feeding trial, Treatment 1 had the highest mean values of growth and nutrient utilization indices on Clarias garienpinus at standard deviations of 260.77 g (45.59%), 2.01%, 1.92 and 52.10% for the percentage of weight gained, specific growth rate, feed conversion ratio and feed conversion efficiency of the experimented fishes respectively when compared with the commercial feeds (Control) that had mean values of 416 g (71.36%), 2.18%, 1.20 and 83.33%. Treatment 4 had the lowest weight gained with mean values of 99.67 g (17.77%) 1.67%, 5.02 and 20.00% respectively. The white blood cell of the fishes in Treatment 1 had a high value of 6600 when compared to that of the Control which had a value of 7500. Treatment 1 (T1R1) experimented on Clarias garienpinus, gave the highest values of growth performance and nutrient utilization compared with other treatments in terms of its whole body composition, proximate analysis and haematolgical status. This implies that treatment 1 experimented on Clarias garienpinus, was the best and can be used for feeding fishes since their values are closer to that of the control. There was significant differences in the final weight of fish fed with treatment 1, 3 and 4 (p > 0.05). However, there was no significant difference in treatments 1 and 2.

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