Browsing Breeding and Seed Production of Cultured Finfishes in the Philippines by Title
Now showing items 1-20 of 31
-
Artificial incubation for intensive fry production of Nile tilapia Oreochromis niloticus (L.)
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Two experiments were conducted to evaluate and compare the production, quality, and survival of eggs and the subsequent growth and survival of fry in two small scale production systems: (i) natural incubation (NI), and ... -
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 ... -
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 ... -
The commercial production of green grouper fingerlings, Epinephelus suillus, from wild caught fry - an industry experience
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Wild-caught fry of the green groupers, Epinephelus malabaricus and E. suillus ranging in standard lengths (SL) from 1.5 to 3.0 cm were bought from different fry dealers all over the Philippines. These were reared from 1.0 ... -
Control of gonad growth, maturation and spawning in teleost fish: A review
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Despite their great variety of reproductive strategies, a general characteristic of most teleosts is that (where known) natural reproduction shows a long-term periodicity, even in tropical habitats (e.g. see contributions ... -
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 ... -
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 ... -
Effects of single injection of carp pituitary extract and human chorionic gonadotropin on germinal vesicle migration and ovulation in lampan sungai, Puntius schwanenfeldii (Bleeker): A preliminary study
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)The effects of crude pituitary extract (CPE) and human chorionic gonadotropin (hCG) on germinal vesicle migration and ovulation in lampan sungai Puntius schwanenfeldii (Bleeker) were investigated. Sexually mature female ... -
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 ... -
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 ... -
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 ... -
Growth and survival of milkfish (Chanos chanos) larvae reared on artificial diets
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)A preliminary feeding experiment was conducted to determine growth and survival of milkfish larvae reared on various feeding regimes involving the use of artificial diets. Two larval diets (Feed A and Feed B) containing ... -
Impact of nickel poisoning on the histology of the ovaries of Oreochromis mossambicus
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Ovaries of Oreochromis mossambicus exposed to sublethal concentrations of nickel sulphate (0.5 mg/1 and 1.0 mg/1) were histologically analyzed. Changes following exposure to 0.5 mg/1 nickel sulphate include irregularities ... -
Induced spawning of the mangrove red snapper, Lutjanus argentimaculatus
(Aquaculture Department, Southeast Asian Fisheries Development Center, 1996)Wild-caught mangrove red snapper, Lutjanus argentimaculatus, reared for a year in 4.0 m diameter by 1.5 m deep circular concrete tank spontaneously matured and were used for induced spawning trials. On 19 August 1992, a ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ...
