• 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 winter 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 shows that, the rate of ammonia excretion was significantly increased in ganglionic extract injected group and decreased significantly in estradiol injected group on 2nd day. While on 5th day, the rate of ammonia excretion increased significantly in progesterone injected as well as ganglionic extract injected group. The rate of ammonia excretion on 8th day of experimentation, decreased significantly in progesterone injected and ganglionic extract injected group, where it was increased significantly in estradiol injected group as compared to respective control group

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

"Variation in the rate of ammonia excretion due to commercial hormones (progesterone and estradiol) and ganglionic extract injections in freshwater bivalve Indonaia caeruleus (Prashad, 1918) during summer season.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.113-120, June-2019, Available :http://www.jetir.org/papers/JETIR1906A21.pdf

"Variation in the rate of ammonia excretion due to commercial hormones (progesterone and estradiol) and ganglionic extract injections in freshwater bivalve Indonaia caeruleus (Prashad, 1918) during summer 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. pp113-120, June-2019, Available at : http://www.jetir.org/papers/JETIR1906A21.pdf