Site pages
Current course
Participants
General
Topic 1
Topic 2
Topic 3
Topic 4
Topic 5
Topic 6
Topic 7
Topic 8
Topic 9
Topic 10
Topic 11
Topic 12
Topic 13
Topic 14
Topic 15
Topic 16
Topic 17
Topic 18
Topic 19
Topic 20
Topic 21
Topic 22
Topic 23
Topic 24
Topic 25
Topic 26
Topic 27
Topic 28
Topic 29
Topic 30
Topic 31
Topic 32
Topic 33
Topic 34
Topic 35
Topic 36
Topic 37
3.2. Induced breeding of warmwater finfishes and environmental factors affecting spawning
Unit 3 - Breeding of major carps
3.2. Induced breeding of warmwater finfishes and environmental factors affecting spawning
- Houssay (1930) of Argentina was the first to attempt induced breeding of fish by using pituitary extract on a viviparous fish. He was successful in obtaining premature birth of young fish.
- Subsequently, based on the lines of Houssay, Von Ihering and his team of Brazil, in 1934, successfully induced bred a catfish with pituitary hormones and hence credit for the present day concept of induced breeding of fish goes to Brazilians.
- In India, Chaudhuri and Alikunhi (1957) successfully induced major carps to spawn through hypophysation technique.
- Since then, the technique has been standardized and refined for the large-scale production of fish seed.
- The Indian Major Carp, which normally spawn once a year either naturally or through hypophysation during monsoon, were successfully induced bred twice within an internal of about two months.
-
Chondar (1984;1990) described a method for the mass scale breeding of IMC and silver carp in `Bangla bundh’ through Human Chorionic Gonadotropin (HCG) and its combination with pituitary extract.
A major carp being injected with a spawning agent for induced breeding
Last modified: Thursday, 9 June 2011, 8:53 AM