Induced spawning and larval rearing of grouper (Epinephelus salmoides Maxwell)
- Global styles
- MLA
- Vancouver
- Elsevier - Harvard
- APA
- Help
Share
Abstract
Broodfish of grouper (Epinephelus salmoides ) were induced to spawn by hormonal induction. The hormones used for this experiment were HCG + pituitary gland (PG) and LRH-a. The results showed that at dosages of 500 IU HCG + 3 mg of PG per kg of fish for first injection and 1,000 IU HCG + 3 mg of PG per kg of fish at the final injection at an interval of 24 hours, the treated fish spawned naturally in a spawning tank 12 hours after the final injection. At lower dosages of 500 IU HCG + 3 mg PG at 12-hour intervals or 500 IU HCG + 3 mg PG at 24-hour intervals or using 10 mg LRH-a at 12-hour intervals, the eggs can be artificially fertilized only by stripping. The larval rearing experiment was conducted in a 250-l fiberglass tank at the stocking density of 2,500 larvae per tank. Feeds used in this experiment were: (a) Isochrysis + sea urchin eggs; (b) Isochrysis + Brachionus ; and (c) Tetraselmis + Brachionus . The results showed that newly hatched larvae fed with Isochrysis mixed with sea urchin eggs and then Brachionus from day 10 had the best survival rate (9% at day 30).
Description
Excerpt from The First Asian Fisheries Forum. Asian Fisheries Society, Manila, Philippines.
Type
Conference paperCollections
- Conference Proceedings [289]
Related items
Showing items related by title, author, creator and subject.
-
Research on molluscs and seaweeds
Fermin, Armando C.; Hurtado, Anicia Q. (Aquaculture Department, Southeast Asian Fisheries Development Center, 2001)This paper reviews the progress of mollusc and seaweed research at SEAFDEC AQD from 1995 to 1999. Because of the pressing need for seedstocks for stocking, research on the donkey s ear abalone, Haliotis asinina focused on ... -
Broodstock management and seed production of tilapia and carp
Fermin, Armando C. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1988)Bighead (Aristichthys nobilis) and silver (Hypophthalmichthys molitrix) carps were reared in ponds, pens and floating cages in Laguna Lake until maturity. Spontaneous gonadal maturation and rematuration of carp broodstock ... -
Experiments on the induced spawning and larval rearing of the milkfish, Chanos chanos (Forsskal) in 1979
Juario, J. V.; Natividad, M.; Quinitio, G.; Banno, J. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1979)This paper summarizes the results of the experiments on the induced breeding and larval rearing of milkfish during the 1979 season.