Question

Indian major carps were successfully bred incaptivity for the first time in India by using the following

• A. Feed manipulation
• B. Water quality management
• C. HCG
• D. Hypophysation technique

Hint:

The historic success of hypophysation in 1957 marked the birth of modern freshwater aquaculture in India, freeing farmers from relying on erratic wild-caught riverine seed collections.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Indian Major Carps (IMCs) are seasonal breeders that naturally spawn in flooded rivers during monsoons but fail to spawn spontaneously in stagnant pond environments.
Induced breeding technologies were developed to overcome this captive breeding barrier.

Step 2: Detailed Explanation:
In 1957, Indian fisheries scientists Dr. Hiralal Chaudhuri and Dr. K.H. Alikunhi successfully achieved the induced spawning of Indian Major Carps (Catla, Rohu, and Mrigal) for the first time in India.
They utilized the hypophysation technique (injecting pituitary gland extract from donor fishes) to stimulate the release of gonadotropins, triggering ovulation and spawning in captivity.

Step 3: Final Answer:
Indian major carps were successfully bred using the hypophysation technique, which corresponds to option (D).