Nnninduced breeding in fish pdf lundin's

Hormoneinduced spawning is the only reliable method to induce reproduction. Induced breeding practices of the fish hatcheries in the. Genetics and breeding in aquaculture options mediterraneennes. This brochure will show the benefits of selective breeding for aquaculture producers. Hormoneinduced spawning of cultured tropical finfishes. For most of the tropical cultured fish, the specific environmental cues that trigger ovulation and spawning have not been identified. Optimisation of selective breeding program for nile. The br d t ck r l sed pr ductioi is obtained either by col1ction from he a or by. The gift breeding program is conducted by the research institute for aquaculture. A new spawning agent, ovopel was evaluated for spawning of indian carps in assam, india. Bloch is a protandrous he mapluodite, usually younger fish in the age gro p of 3 to 5 yea. Abstract the aquaculture sector is significantly behind plant and farm animal production in applying selective breeding, in spite of the fact that it. Induced breeding with pituitary gland extraction form fish.

Faos code of conduct for responsible fisheries on aspects of genetic resource. Medium sized fully ripe and healthy fish of around 2 to 4 years of age is preferred for induced breeding. Nuclear transplantation and gene transfer are two newly developed methods for attempting to cultivate new breeds of fish. Induced breeding is a technique whereby ripe fish breeders are stimulated by pituitary hormone or any other synthetic hormone introduction to breed in captive condition. Healthy male and female breeders should be identified and netted out before the breeding season and should be kept in spawning pools. The stimulation promotes timely release ofthe stimulation promotes timely release of sperms and eggs from ripe gonads. Induced breeding is a technique where organism is stimulated by particular hormone or other synthetic hormone or by providing condition, introduced to breed in slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Broodstock collection and transport sine as n sbabu s.

Introductionintroduction induced breeding is a technique where byinduced breeding is a technique where by ripe fish breeders are stimulated by pituitaryripe fish breeders are stimulated by pituitary hormone or other synthetic hormonehormone or other synthetic hormone introduced to breed in captive troduced to breed in captive condition. Apart from eggs and spawn, the fry and fingerlings are also collected from rivers. Selective breeding in fish and conservation of genetic resources. They are collected by fry collection nets which are fine meshed drag nets. Fish breeding in india is no longer a complicated technique. By contrast, with the excep tion of a few fish species see gjedrem 2000, 2010 ponzoni et al. To ensure a yearround, rather than a seasonal, supply of seed, fish breeders have developed techniques of induced spawning that, if efficiently controlled. The fish production from inland water which are essentially culture fisheries and are less capital intensive have growth rate at present when compared to marine fisheries which are essentially capture and are capital intensive have relatively slow growth rate. The fingerlings are collected by cast nets, traps or fine muslin cloth while they tend jump over to cross. Modern cytogenetic techniques j devi1, j m ko2 and b b seo3 1department of plant breeding and genetics, assam agricultural university, jorhat 785 0, india 2 national yeongnam agricultural experiment station, milyang 627, korea 3 department of biology, kyungpook national university, taegu 702 701, korea. Selective breeding has a very high potential for improving the genetic makeup of fish in aquaculture production.