HCG and LHRH-A induced spawning in bighead carp Aristichthys nobilis Rich. reared in floating cages in Laguna de Bay
MetadataShow full item record
Hormone-induction of spawning in bighead carp Aristichthys nobilis Rich. by single or double intraperitoneal injection with varying combined dosages of HCG and LHRH-A was conducted. Fish were spawned successfully following a single or double injection with 1800 to 2000 IU HCG in combination with 10, 15 or 20 µg HRLR-A per kg body weight. Fish injected with lower dosages of HGC at 1200 or 1500 IU/kg body weight plus 20 µg/kg LHRH-A did not differ significantly (P>0.05). Fish given a single injection ovulated after 12.0 ± 0.1 hours. No significant difference was found in the total number of eggs spawned per fish among the injection protocols (P>0.05). However, lower fertilization and hatching rates of eggs were observed in fish that spawned spontaneously in the tank as compared to those fish whose eggs were stripped and dry-fertilized (P<0.05).
Suggested CitationFermin, A. C., & Reyes Jr., D. M. (1989). HCG and LHRH-A induced spawning in bighead carp Aristichthys nobilis Rich. reared in floating cages in Laguna de Bay.
- Journal Articles 
Showing items related by title, author, keyword and subject.
Tabbu, Marlo Y.; Lijauco, Melchor M.; Eguia, Ruel V.; Espegadera, Corazon C. (Fisheries Research Society of the Philippines, 1986)Increasing fish production through polyculture was clearly demonstrated to the fishfarmers in Laguna lake. The rearing of different species of fish of proper number and species combinations had resulted to the efficient ...
Gonzal, Angelito C.; Santiago, Corazon B.; Fermin, Armando C.; Aralar, Emiliano V. (Aquaculture Department, Southeast Asian Fisheries Development Center, 2001)
Acceptability of selected zooplankton and phytoplankton for growing larvae/fry of bighead carp (Aristichthys nobilis). Baldia, Susana Fernando.; Pantastico, Julia Baldia.; Baldia, Jose Palmiano. (Proceedings of the Asian Symposium on Freshwater Fish Culture, 11-15 October 1985, Beijing, China, 1990)