• Dr. thorat s. k.

Changes in the rate of ammonia excretion of freshwater bivalve Indonaia caeruleus (Prashad, 1918) with injections of cerebral ganglionic extract and equivalent commercial hormones (progesterone and estradiol) during winter season. 1Thorat S. K* 1Assistant Professor, 1 Department of Zoology, Smt. G. G. Khadse College, Muktainagar, Jalgaon (M.S., India). ABSTRACT Neuroendocrine control is important and which control the metabolic activities of freshwater bivalves, we report here the role of injections of equivalent commercial hormones (i.e. Progesterone & Estradiol) and cerebral ganglionic extract on excretion 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 demonstrates that, the rate of ammonia excretion was significantly decreased in ganglionic extract injected group and progesterone injected group on 2nd day. On 5th day, the rate of ammonia excretion increased significantly in progesterone injected group and significant decrease observed in ganglionic extract injected group. While on 8th day of experimentation, the rate of ammonia excretion decreased significantly in ganglionic extract injected group as compared to its respective control group.

Keywords: - Cerebral ganglionic extract, Progesterone, Estradiol, Ammonia excretion, Freshwater bivalve, Indonaia caeruleus.

"Changes in the rate of ammonia excretion of freshwater bivalve Indonaia caeruleus (Prashad, 1918) with injections of cerebral ganglionic extract and equivalent commercial hormones (progesterone and estradiol) during winter season.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 7, page no.g472-g479, July-2021, Available :http://www.jetir.org/papers/JETIR2107795.pdf

"Changes in the rate of ammonia excretion of freshwater bivalve Indonaia caeruleus (Prashad, 1918) with injections of cerebral ganglionic extract and equivalent commercial hormones (progesterone and estradiol) during winter season.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 7, page no. ppg472-g479, July-2021, Available at : http://www.jetir.org/papers/JETIR2107795.pdf