Year: 2019, Issue: December

Changes in the histology of thyroid gland of male and female spotted snake head fish Channa punctatus.
Author:
Poonam Kumari
Keyword:
Channa punctatus, Oviparous, Spotted snake head fish.
Channa punctatus, spotted snake head fish is a highly priced fresh water species in India. Histomorphology of gonads as well as changes in the thyroid glands of Channa punctatus have been studied during different months of the year. This fish is oviparous and breeds once a year during the rainy season (July-September). The thyroid gland of Channa punctatus is diffused and uncapsulated organ consisting of many separate follicles in the connective tissue scattered along the route of ventral aorta and afferent blood vessels. The changes in the thyroid follicles were found closely connected with the changes in the reproductive cycle. It clearly suggests the involvement of thyroid in controlling reproduction.

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