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International Journal of Zoological Research
Year: 2008  |  Volume: 4  |  Issue: 1  |  Page No.: 28 - 34

Seasonal Variation on the Proximate Composition of Turbo brunneus

R. Ramesh and S. Ravichandran    

Abstract: This study is to find out the nutritive value of the meat of T. brunneus and to ascertain the relationship between seasonal variations in biochemical components and reproductive cycle. The monthly variations in the biochemical constituents were estimated in different body organs such as foot, gonad, digestive gland and mantle for both male and female gastropods. Carbohydrate content of gonad is high during May 2002 in males (5.30%) and females (6.14%). The percentage of lipid is high (4.85%) in ovary during May 2002 and low in October 2002 (3.10%). In testis, the values range from 3.0 (September 2002) to 4.20% (May 2002), respectively. The gonadal tissues show major variations in lipid values, whereas the percentage variation is negligible in mantle, which ranges from 1.64-1.74% in males and 1.59-1.78% in females. The lipid valued decreases from June to October and the values showed little fluctuations from the minimum value until December. But, in the digestive gland, the percentage is higher in September 2002 in males (3.06%) and October 2003 in females (2.96%) and low in May 2003 (2.4 and 2.12%) in both the sexes. The protein contents of the digestive gland shows a clear seasonal variation, which is negatively correlated with that of other body organs.

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