The present study was attempted to know the growth regulation of eyestalk factors on the growth of heart in Scylla serrata using eyestalk extractions and bilateral eyestalk ablations. The bilateral eyestalk ablation led to the maximum growth indices of the heart ((H) indices) to 0.162 and 0.158 in ablated male and female, respectively, in comparison to 0.153 and 0.167 in the control male and female and 0.147 and 0.157 in injected male and female, respectively. The data have shown that the heart of male crabs grows faster than female crabs. The study has also shown that bilateral eyestalk ablation resulted in a significant increase in the heart indices in males and has least effect on the growth of the female heart. The results presented strongly support a potential role of the eyestalk factors and molting hormone regulating the growth of the heart in S. serrata.

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Hair growth problems can affect human physical and mental health and are of particular relevance during the aging process. In an effort to resolve such problems, an attempt has been made to evaluate the hair growth promotion activity of fresh leaf extracts of Naringi crenulata by using rodent model. Crude extracts of 0.2 ml were applied over the shaved skin onto the backs of wistar rats and monitored for 30 days. After 30 days, rats were treated with acetone and chloroform produced a greater effect on the length and weight of hair, number of hair follicles, blood circulation and colouration of shaved skin as compared to the control groups. Therefore the results of this study suggest that, Naringi crenulata has hair growth promoting potential, the effect of which may be attributed to the presence of terpenoids and flavonoids in the plant extracts.

The use of traditional medicines holds a great promise as an easily available source as effective medicinal agents to cure a wide range of ailments among the people particularly in tropical developing countries like India. The present study investigates the qualitative and quantitative analysis of the major bioactive constituents of N. crenulata leaf extracts. The extractive values of aqueous, acetone and chloroform extracts were found to be 11.34, 4.24 and 6.06 respectively. Qualitative phytochemical analysis of these three solvent extracts confirm the presence of Alkaloids, Saponins, Flavonoids and Phenolic compounds in all the three extracts; however, these phytochemicals were more significant in aqueous extract. Quantitative analysis was carried out using TLC method by different solvent system. Amongst various solvent systems, Butanol: acetic acid: water (9: 0.9: 0.1 v/v/v) shows maximum resolution and number of spots produced at long UV (365 nm) and under iodine vapours. The TLC chromatograms constituted different coloured phytochemical compounds with different Rf values. It can be conveniently used to evaluate the quality of different area samples. This indicates that the leaves can be useful for treating different diseases because the therapeutic activity of a plant is due to the presence of particular class of compounds and thus can serve as potential sources of useful drugs in future.

www.eajbs.eg.net Natural diet of the moon crab, Ashtoret miersii (Henderson, 1887) collected from the southeast cost of India.