การท่องเว็บ Breeding and Seed Production of Cultured Finfishes in the Philippines ตามวันที่ออก
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Larviculture of milkfish (Chanos chanos) in outdoor tanks
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)In the past, larviculture of milkfish depended entirely on the use of rotifers and brine shrimp nauplii and rearing trials were done under roofed facilities. Since the dietary value of live food varies according to culture ... -
Mass larval rearing technology of marine finfish in Japan
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)With economic development and increased demand for high price fish, industrial scale marine finfish culture in Japan was started in 1960-1965 for yellowtail Seriola quinqueradiata. Sustainable supply of wild juvenile and ... -
Changes in lipid and fatty acid content during early larval development of milkfish (Chanos chanos): influence of broodstock diet
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The influence of amount and type of lipid given to milkfish broodstock by developing larvae was investigated by feeding broodstock commercial diets that differed in lipid content and composition. The two commercial feeds ... -
Successful use of cryopreserved oyster trocophores as a live first feed larval marine fish and invertebrates
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Trochophore-stage larvae of the Pacific oyster Crassostrea gigas were cryopreserved in bulk and stored in liquid nitrogen for periods up to two years before thawing and feeding to a variety of warmwater and coldwater larval ... -
Workshop discussions and recommendations
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996) -
Tilapia breeding and seed production for brackishwater culture in the Philippines
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Tilapias are important foodfishes in the Philippines second only to milkfish. While farming of tilapias in freshwater ponds and cages is already established, there is a need for wider application of the available technologies ... -
Correlations of oocyte diameter with some morphometric characters in the nile tilapia, Oreochromis niloticus L.
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)A study was conducted to determine the correlation of oocyte diameter with some morphometric characters in a Philippine strain of Oreochromis niloticus L. One hundred and thirty-five 7- to 9-month old sexually mature female ... -
Feeding habits of hatchery-reared grouper, Epinephelus suillus larvae
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The feeding habits of hatchery-reared Epinephelus suillus larvae were determined by examining their gut contents. The larvae (2.6 mm TL) were initially fed rotifers on day 2 and newly-hatched Artemia nauplii on day 21 (9.1 ... -
Effects of different fat sources on the egg quality of grouper, Epinephelus suillus
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The effect of different fat sources on the egg quality of grouper, Epinephelus suillus eggs was evaluated. Fish in three tanks, each containing 3 females and 1 male, were fed various types of feeds namely: trash fish ... -
Endocrine changes associated with overripening of ovulated eggs in goldfish, Carassius auratus L.
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Changes in steroid hormone levels in the serum and ovarian fluid were studied during overripening in goldfish. Ovulated eggs retained in the ovarian cavity become overripe at around 12 h after ovulation and completely ... -
Maturation of Oreochromis niloticus gonads
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)At hatching when fry were 5 to 6 mm, primordial germ cells (PGCs) were found to concentrate along the dorsomedian region of the peritoneal wall at the root of the developing mesentery and in places far from the appearance ... -
Natural spawning of four Epinephelus species in the laboratory
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Natural spawnings of four Epinephelus species reared in the laboratory were observed from 1987 to 1992. These species are: E. summana, E. caeruleopunctatus, E. macrospilus and E. fuscoguttatus. Spawning was serial, usually ... -
LHRHa and pimozide-induced breeding in the catfish, Clarias macrocephalus (Gunther)
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Clarias macrocephalus is endemic yet dwindling freshwater foodfish in the Philippines. Induced breeding protocol was developed by monitoring the size and maturation of eggs at 0-48 h after a simultaneous injection of ... -
Influence of LHRHa and methyltestosterone on milt production of sea bass Lates calcarifer (Bloch)
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Milt volume, sperm density, and number of spermatozoa were determined to quantify milt production of mature sea bass after a single injection of LHRHa [(D-Ala6,Pro9-N-ethylamiide)LHRH] in saline solution and 17α-methyltestosterone ... -
Nickel-induced pathohistologic alterations in Oreochromis mossambicus
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)A pathohistologic study was conducted to determine the effects of nickel on the testes of maturing Mozambique tilapia, Oreochromis mossambicus. The fish were treated with 0.5 mg/L and 1.0 mg/L sublethal dose of nickel ... -
A brief account of the experience of Sabah Fisheries Department in fish larval rearing
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Venturing into the aquaculture sector especially in pond and cage culture is a step that has been taken up by entrepreneurs and traditional fishermen of Sabah. However, shortage in the supply of fish fry is a stumbling ... -
Flounder metamorphosis: its regulation by various hormones
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The elongation and shortening of the flounder fin rays during its metamorphosis may be parallel to the appearance and resorption of the tadpole tail during amphibian metamorphosis. The dorsal fin rays of the Japanese ... -
Resistance of two Nile tilapia, Oreochromis niloticus (L.) strains exposed to a mixture of zinc, cadmium and inorganic mercury
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Two strains of one month-old Oreochromis niloticus namely CLSU (obtained from Central Luzon State University, Philippines) and NIFI (from National Inland Fisheries Institute, Thailand) were exposed to a sublethal mixture ... -
Oral administrations of chemotherapeutics via the bioencapsulation technique: A tool for therapeutic treatment in larviculture
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The application of the bioencapsulation technique as a tool for curative treatment in fish larvae was investigated. Antibacterials, trimethoprim (TMP) and sulphamethoxazole (SMX), incorporated in an oil emulsion (SELCO, ... -
Role of growth hormone in the adaptation to sea water of juveline brown trout, (Salmo trutta)
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The first part of the study investigates the ability of ovine growth hormone (oGH) to enhance the hypo-osmoregulatory and growth performance of juvenile brown trout after exposure to sea water (SW). Three groups of fish ...
