Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Effect of Nutrients Enriched Feed Premix on the Growth Performance of Major Carps Rohu, Catla and Mrigal in a Polyculture System

Md. Faridur Rahman
Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna – 9208, Bangladesh

Shamima Sultana
Assistant Professor, Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna – 9208, Bangladesh

Manash Kabiraj
Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna – 9208, Bangladesh

Md. Alimullah
Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna – 9208, Bangladesh

Abstract/ Executive Summary:

To evaluate the effect of nutrients enriched feed premix on the growth performance of major carps Rohu (Labeo rohita), Catla (Catla catla) and Mrigal (Cirrhinus mrigala) in a polyculture system, the present experiment was carried out in six earthen ponds located at Khulna University of Bangladesh for a period of 90 days. Two treatments each with three replications were stocked with 40% Rohu, 30% Catla and 30% Mrigal with a total stocking density of 10000/ha. T-2 was treated with feed premix at the rate of 4g/1 kg feed while T-1 was not treated with any feed premix. Both treatments were applied normal feed twice a day at the rate of 2% to 4% of the body weight of the fingerlings. The net fish production was found to be 2238.06 kg/ha and 3607.33 kg/ha in T-1 and T-2 respectively. The results showed that fish production was significantly higher in T-2 than T-1 (P<0.05). T-2 showed 0.60 times greater fish production than that of T-1.

Keywords: Feed premix; Growth; Polyculture; Production; Carp

Location: Experimental pond complex II of Fisheries and Marine Resource Technology discipline, Khulna University, Khulna, Bangladesh

Start Date: 00-02-2018

End Date: 00-05-2018

Program Area: Animal Health and Management

Commodity: Crab

Objectives:

To investigate the effect of nutrients enriched feed premix on the growth promotion of Rohu, Catla and Mrigal in a polyculture system.

Methodology:

Study area and period- The study was conducted in the experimental pond complex II of Fisheries and Marine Resource Technology discipline, Khulna University, Khulna, Bangladesh during February to May, 2018. All experimental ponds were same sizes and rectangular in shape with a maximum depth of 1.5 m. Additionally, all the ponds were fully exposed to prevailing sunlight. Experimental Design- The trial was conducted into two different treatments with three replications each. Pre stocking management- Ponds were renovated and cleaned of aquatic vegetation in January. All unwanted fishes and other aquatic organisms were eradicated by applying rotenone and repeated netting. Pond dikes were repaired using the excavated bottom soils. The weeds of embankment were also cleaned manually. Agricultural lime (CaCO₃) was applied to the pond bottom at the rate of at a rate of 1kg/decimal. The ponds were filled with water after seven days of liming from adjacent deep tube well by using pump. After three days, all ponds were fertilized with inorganic fertilizer like, Urea, TSP, and Molasses-yeast mixture at the same rate. After the first fertilization and before fish stocking, the ponds were left 10 days to allow plankton development. Stocking- Rohu, Catla and Mrigal were collected from a local nursery named Sowakat Ali at Dumuria Upazilla of Khulna District. The ponds were stocked with fish after ten days of fertilization. All fish were released in the ponds in early morning after acclimatization. Post stocking management- All ponds were subject to the same regime of feed application. In case of treatment, firstly, fish feed was mixed with feed premix by using soybean oil. After that, fish were fed with that additives mixed feed in treatment (T2). Fish were fed at the rate of 2% of total body weight of stocking fingerlings twice daily at 8:30 am and 4:30 pm. Additionally, feeding rate was increased gradually from 2% to 4% of total body weight of the fish. However, no feed premix was applied in control (T-1). Furthermore, all ponds were fertilized with inorganic fertilizer like, Urea, TSP, and Molasses-yeast mixture at the same rate fortnightly. Water sampling and analysis-Water quality parameters such as temperature, pH, dissolved oxygen level (DO), salinity, alkalinity and hardness were monitored in every 30 days’ interval to ensure suitable culture condition. Samples were brought to the Water Quality Research Laboratory, FMRT Discipline, Khulna University, Khulna for chemical analysis. Growth parameters- Fish sampling were conducted at monthly intervals to assess their growth and health status. The following equation were used to evaluate the growth and survival rate of fishes:
Weight gain (cm) = Average final weight (g) – average initial weight (g) Survival rate (%) = (No. of fish harvested/ Initial no. of fishes) x 100
Harvesting of Fish- After 90 days of rearing, the fish were harvested from all the ponds. Final harvesting was done by dewatering the ponds with a submerged low fit pump. During harvest, all fishes were counted and weighted from each pond to assess the survival rate and production. Statistical Analysis- The data collected during experiment were recorded. Data were analyzed using MS excel and the statistical package SPSS (16). One-way ANOVA was performed to observe the degree of difference between the treatments at the 5% level of significance.

Source of Information: Asian J. Med. Biol. Res. 2018, 4 (3), 298-306; ISSN 2411-4472 (Print) 2412-5571 (Online)

Article Link (Online Journal): doi: 10.3329/ajmbr.v4i3.38469

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Rohu (L. rohita), catla (C. catla) and mrigal (C. mrigala) species which have a high market value and a simple culture technique. Yet, a very few research has been commenced to enhance the growth and production performance of these species. Nutrients enriched feed premix could be very effective for the cultivation of these species as they enhance the growth and production. This study clearly showed that feed premix effect on fish growth. These feed premix are very much beneficial for fish production. Suitable production was found in T-2 than T-1 which had no premix. So, this investigation revealed that application of nutrients enriched feed premix contributes to higher production for all three species and generate better economic returns.

Knowledge Management: Journal