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Monthly Variation of Biochemical Composition of Gonia (labeo Gonius) Collected from Bangladeshi Water

Afroza Begum
Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh-2202.

Maruf Hossain Minar
Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh-2202.

Md. Sarower-E-Mahfuj
Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh-2202.

Mohajira Begum
Fish Technology Research Section, Institute of Food Science and Technology, Bangladesh Council of Scientific and Industrial Research, Dhaka, Bangladesh.

Abstract/ Executive Summary:

Biochemical composition indicates the percentage of many important nutrients that are essential to the human body. The study was conducted to determine the chemical composition of Labeo gonius bio based on the moisture. Comparative analysis of several estimated parameter (using AOAC, 1990 method) suggest a definite monthly variation from the point of nutritional aspect of Labeo gonius. The highest value of crude protein and moisture was found in May, while lipids, carbohydrates, ash and crude fiber were in July and August, respectively. Crude fiber was absent in April, May and August, but present in a very high amount in July. Furthermore, the value of the fat suddenly increasing in a very high amount in July. Changes in the water and fat indicate that while obviously increased fat content, there was a decrease in the water content due to heavy feed during this period. In addition to the fat and protein content was lower in August may be due to the breeding season gonia.

Keywords: Labeo gonius, Protein, Seasonal variation

Location: Bangladesh Agricultural University, Mymensingh.

Start Date: 00-00-2012

End Date: 00-00-2012

Program Area: Animal Health and Management

Commodity: Carp fish

Objectives:

To assess its nutritional composition of Labeo gonius with special reference to protein in four different months of the year.

Methodology:

Sample Collection: A total number of 16 L. gonius samples were collected Chamtaghat area, Mymensingh Bangladesh during April to August. Then the samples were brought into the Laboratory of Fish nutrition, Bangladesh Agricultural University, Mymensingh for biochemical composition. Preparation of the Sample for the Test: The sample was cut into very small pieces for testing various examinations. Determination of moisture content of the raw fish was conducted by AOAC method. The crude protein of the fish was determined by Micro- Kjeldhal method. The estimation of fat content of experimental raw fish had been accomplished by Bligh and Dryer method. The fresh raw samples (2/3 g) were minced, weighed and ignited in the crucible. Then it was transferred in the Muffle Furnace held at dark red at a rate of 550-600 ⁰C for 6-8 h until the residue was white. Finally the percentage of ash content was calculated. Data Analysis: The results obtained were analyzed statistically by performing ANOVA and Tukey’s tests where there were significant differences. Significance level was set to an alpha level of 0.05. Statistical significance is indicated with appropriate letters on the data tables.

Source of Information: Int. J. LifeSc. Bt & Pharm. Res. Vol. 2, No. 2, 227-232, April 2013

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest value of crude protein and moisture was found in May, while lipids, carbohydrates, ash and crude fiber were in July and August, respectively. Crude fiber was absent in April, May and August, but present in a very high amount in July. Furthermore, the value of the fat suddenly increasing in a very high amount in July. Changes in the water and fat indicate that while obviously increased fat content, there was a decrease in the water content due to heavy feed during this period. In addition to the fat and protein content was lower in August may be due to the breeding season gonia.

Knowledge Management: Journal