• Seasonal variations and the role of neurosecretory hormones on the androgenic gland of the prawnMacrohrachium lamerrii

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    • Keywords


      Androgenic gland; eyestalk ablation; Macrohrachium lamerrii ; eyestalk extract; brain extract; thoracic ganglion

    • Abstract


      The androgenic gland ofM. lamerrii is situated near the seminal vesicle and along the vas deferens of the male prawns. Histologically it is made up of cords of cells which are arranged loosely. Histochemical analysis of the androgenic gland cells showed the presence of cystine/cysteins, protein bound amino acid groups. Androgenic gland ofM. lamerrii shows signs of increased secretory activity during the sexually active phase of the male. In adult prawns, eyestalk ablation results in the hypertrophy of androgenic gland. Brain and thoracic ganglion extracts also showed enhanced secretory activity of androgenic gland and corresponding gonadal activity in the male prawns.

    • Author Affiliations


      R Sarojini1 G Gyananath2

      1. Department of Zoology, Marathwada University, Aurangabad - 431 004, India
      2. Department of Biosciences, Sri Sathya Sai Institute, Prasanthinilayam - 515 134, Andhra Pradesh, India
    • Dates


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