• Thorat S. K
• Vedpathak A. N.

Considering typically the importance of neuroendocrine control on the metabolic activities of freshwater bivalves, we report here the effect of injections of equivalent commercial hormones (Progesterone & Estradiol) and cerebral ganglionic extract on excretory metabolism of freshwater bivalve mollusc Indonaia caeruleus (Prashad, 1918) from Godavari River. During monsoon season, the adult bivalve mollusc, Indonaia caeruleus (50-55 mm shell length) were subjected to (a) control (normal) (b) injection of a cerebral ganglionic extract of same species to intact individuals (c) injection of equivalent commercial hormone progesterone to normal control and (d) injection of estradiol to normal control for 8 days. The rates of ammonia excretion in bivalves from all four groups (including control) were measured on 2nd, 5th, and 8th day. The study revealed that, the rate of ammonia excretion was significantly decreased in all groups on 2nd day compared to control. On 5th day the rate of ammonia excretion increased significantly in Progesterone, ganglionic extract estradiol injected groups respectively as compared to the control. Where, on 8th day, the ammonia excretion rate increased significantly in all experimental groups compared to the control group.

Cerebral ganglionic extract, Progesterone, Estradiol, Ammonia excretion, Freshwater bivalve.

"Role of ganglionic extract and commercial hormones (progesterone and estradiol) injections on the rate of ammonia excretion in freshwater bivalve Indonaia caeruleus (Prashad, 1918) during monsoon season.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.130-137, June-2019, Available :http://www.jetir.org/papers/JETIR1906A23.pdf

"Role of ganglionic extract and commercial hormones (progesterone and estradiol) injections on the rate of ammonia excretion in freshwater bivalve Indonaia caeruleus (Prashad, 1918) during monsoon season.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp130-137, June-2019, Available at : http://www.jetir.org/papers/JETIR1906A23.pdf