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Effect of Formulated Diets on Growth Performance and Feed Utilization Efficiencies of Snakehead Channa Striatus Juveniles

Md. Marufujjaman Mithu
Department of Fisheries, University of Dhaka, Dhaka, Bangladesh

Md. Golam Rabbane
Department of Fisheries, University of Dhaka, Dhaka, Bangladesh

Md. Abdul Khaleque
Department of Fisheries, University of Dhaka, Dhaka, Bangladesh

Md. Ghulam Mustafa
Department of Fisheries, University of Dhaka, Dhaka, Bangladesh

Abstract/ Executive Summary:

The present study evaluated the effects of three formulated feed with three different protein (30%, 36% and 40%) levels on the growth performance and feed utilization efficiencies of snakehead Channa striatus juveniles. Results of the current study showed that feed 2 (36% protein) had significant positive effects on the feed conversation ratio (FCR), average daily gain (ADG), feed efficiency and condition factor while no such differences were observed in specific growth rate (SGR) and in feed utilization efficiency variables. Significantly lowest FCR (1.39 ± 0.26) was recorded in feed 2. Significantly highest ADG (0.20 ± 0.01 g/d), Feed efficiency (90.81±14.06 %) and protein efficiency ratio (2.26 ± 0.35 %) were measured in feed 2 fish fed 36% protein containing formulated feed. But no significant differences were reported in condition factor, specific growth rate and survival rate among different formulated feeds. The findings of the present study suggest that 36% protein-containing formulated feed could be used for better growth and feed utilization efficiencies of snakehead Channa striatus juveniles.

Keywords: Formulated diet, Growth, Cost effective, Aquaculture, Snakehead

Location: Aquatic Laboratory, Department of Fisheries, University of Dhaka, Dhaka-1000

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Snake head, Feed

Objectives:

Unfortunately, to the best of knowledge, there is no commercially available feed formulated for Channa species and very little information on nutritional requirements has been studied. Therefore, this study was designed to determine the dietary protein level needed for optimal growth and survival of snakehead in order to replace trash fish by using the formulated diet for culture this fish in captive conditions where natural food is limited.

Methodology:

The experiment was undertaken in nine tanks with feeding trial of formulated feed in the Aquatic Laboratory, Department of Fisheries, University of Dhaka, Dhaka-1000. Snakehaed fish (Locally known as Shoal) Channa striatus (Bloch, 1801) juvenile were used as experimental animals obtained from the wild population, Comilla, Bangladesh. After acclimation in the laboratory, the fish was given experimental diets (feed 1: 30%, feed 2: 36% and feed 3:40% protein containing formulated diets) to determine the feeding ration.

The juveniles were cultured in captive environment in the flow through plastic tanks (750 L), the flow rate maintained into the tanks was 1 L/min. Air pump (Sobo Air Pump SB348) used for aeration. Locally available feed ingredients were collected from the Municipal market, Phulbaria Dhaka. The formulated feed ingredients were mixed together with a measured amount of hot distilled water and mix well to make the mixer moist. It was then passed through a fish feed pellet-making machine. Depending on the amount of the fish feed pellets comes out of pellet machine which was collected and dried in the sun and in the oven. After drying, the pelleted feed was stored properly for its use in the feeding trial. The proximate compositions of the feed were carried out as per AOAC method.

The fish fed twice a day in the morning and afternoon for 45 days experiment period. To each of the experimental aquariums 10 fish were stocked having average length 12.00 ± 0.50 cm (mean ± SD) and average weight (29.97 ± 1.20) g at the initial period. Experimental data which were collected during the growth trial were used to determine.

Source of Information: International Journal of Fisheries and Aquatic Studies 2017; 5(3): 451-455

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

A significant positive effect of protein level on FCR, FE, PER, ADG, Condition factor is demonstrated in this study. Protein level also showed effects on the survival rate of the fish. From the study, it can be concluded that 36% protein level could be used to formulate feed of Channa striatus. However, field based work is needed for further study the effect of formulated diets on the growth performance of snakehead fish.

Knowledge Management: Journal