Induced spawning and larval rearing of grouper (Epinephelus salmoides Maxwell)
- Global styles
- MLA
- Vancouver
- Elsevier - Harvard
- APA
- Help
Share
抄録
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).
記述
Excerpt from The First Asian Fisheries Forum. Asian Fisheries Society, Manila, Philippines.
Type
Conference paperCollections
- Conference Proceedings [300]
Related items
Showing items related by title, author, creator and subject.
-
Series: Aquaculture extension manual; No. 63
Seed production of milkfish Chanos chanos Forsskal
Reyes, Ofelia; Eullaran, Bernadita; Ayson, Evelyn Grace (Aquaculture Department, Southeast Asian Fisheries Development Center, 2016)A 26-page manual describing the site selection, hatchery design, spawning, larval rearing, natural food production, and economic analysis for milkfish. -
Catfish aquaculture
Tan-Fermin, Josefa D. (Aquaculture Department, Southeast Asian Fisheries Development Center, 2003)This article deals with the biology, broodstock management, seed production techniques and grow-out culture practices in C. macrocephalus. -
Series: Aquaculture extension manual; No. 34
Biology and hatchery of mangrove crabs Scylla spp.
Quinitio, Emilia T. ; Parado-Estepa, Fe Dolores; dela Cruz-Huervana, Joana Joy (Aquaculture Department, Southeast Asian Fisheries Development Center, 2018)This manual includes the biology of crab (Scylla serrata, S. tranquebarica, and S. olivacea), and describes principles and procedures for spawning the mature crabs and rearing the zoea to ‘fly’ size crabs. It focuses on ...