AQD Journal Articles: Recent submissions
Ipinapakita ngayon ang mga item 1001-1020 ng 1249
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The effect of stress on spawning of brood fish and survival of larvae of the rabbitfish, Siganus guttatus (Bloch)
(Elsevier, 1989)The effects of stress due to handling, and repeated sham and human chorionic gonadotropin (HCG) injections on spawning and survival of the rabbitfish, Siganus guttatus were studied. Results showed that stress significantly ... -
Effects of initial stocking size on the growth of Nile tilapia fingerlings in cages without supplemental feed in Laguna Lake, Philippines
(University of the Philippines, 1988)Oreochromis niloticus fingerlings were stocked at three different initial size ranges of 1-3, 7-12 and 20-30 g in fixed net cages in Laguna Lake, Philippines. These were reared without supplemental feed for 120 days. ... -
Interaction between test and reference populations when tilapia strains are compared by the “internal control” technique
(Elsevier, 1990)Several strains of Oreochromis niloticus, O. mossambicus and their hybrids occur in the Philippines, and others are likely to be introduced or developed locally in the near future. Our objective was to study biological ... -
Survival of young rabbitfish (Siganus guttatus Bloch) under simulated transport conditions
(Blackwell Publishing, 1990)The effect of loading density, transport duration, water temperature, and salinity on survival of young rabbitfish (Siganus guttatus Bloch) under simulated transport conditions was investigated. The rocking motion of ... -
Sustained hormone release. III. Use of gonadotropin releasing hormone analogues to induce multiple spawnings in sea bass, Lates calcarifer
(Elsevier, 1988)Two gonadotropin releasing hormone analogues (GnRHa), [D-Ala6, Pro9-ethylamide] mammalian GnRH and [D-Arg6, Pro9-ethylamide] salmon GnRH, were shown to induce spawning in see ... -
Economic feasibility analysis of the monoculture of mudcrab (Scylla serrata) Forsskal
(Elsevier, 1990)Mudcrabs, Scylla serrata Forsskal, were monocultured at different stocking densities: 5000, 10 000, 15 000 and 20 000/ha for 90 days. Highest mean weight, survival and relative growth increment (P>0.05) were obtained from ... -
Artificial diets for milkfish, Chanos chanos (Forsskal), fry reared in seawater
(Elsevier, 1988)Milkfish fry obtained from the wild (0.009 g body weight, 10 mm total length) were stocked at 200 individuals in each of 18 fiberglass tanks containing 30 l of filtered aerated seawater. Mean salinity and temperature were ... -
Carbohydrate requirements of Penaeus monodon (Fabricius) juveniles
(Elsevier, 1987)P. monodon juveniles with an initial mean weight of 0.62 g were fed isonitrogenous (45%) and isolipidic (10%) semi-purified diets containing 10, 20 and 30% trehalose, sucrose and glucose for 56 days. Shrimp fed the diet ... -
Dietary requirements of rainbow trout for tryptophan, lysine and arginine determined by growth and biochemical measurements
(Springer Verlag, 1986)Three separate studies were performed to determine the dietary requirements of rainbow troutSalmo gairdneri for tryptophan (Trp), lysine (Lys) and arginine (Arg) from both growth and biochemical data. The growth studies ... -
Leucaena leucocephala leaves in formulated feed for Penaeus monodon: a concrete example of the application of histology in nutrition research
(Elsevier, 1986)Penaeus monodon postlarvae were fed with formulated diets containing either soaked or unsoaked Leucaena leaves. A similarly prepared feed with soybean in place of Leucaena was used for comparison. Results were analysed by ... -
Duration of feeding and indirect selection for growth of tilapia
(Elsevier, 1986)Duration of spontaneous feeding was observed at three times each day in a laboratory population of nine juvenile tilapia (Oreochromis mossambicus). Growth of the fish was measured as change in length and weight, and also ... -
Early development of Crassostrea iredalei (Faustino, 1932) (Bivalvia: Ostreidae), with notes on the structure of the larval hinge
(California Malacozoological Society, Inc., 1986)Larvae of the oyster Crassostrea iredalei were reared in the laboratory from eggs through settlement. The oysters were induced to spawn by increasing the temperature by 5-10°C and sometimes by adding stripped oyster sperm ... -
The in vitro effects of cyclic nucleotides, cyanoketone, and cycloheximide on the production of estradiol-17β by vitellogenic ovarian follicles of goldfish (Carassius auratus)
(Academic Press, 1986)The effects of human chorionic gonadotropin (HCG), forskolin, cyclic nucleotides, the phosphodiesterase inhibitors IBMX and theophylline, cyanoketone, and cycloheximide on the production of estradiol-17β by isolated ovarian ... -
Early development of fin-supports and fin-rays in the milkfish Chanos chanos
(The Ichthyological Society of Japan, 1986)Development of fin-supports and fin-rays was observed in larval and juvenileChanos chanos, Chondrification of the caudal complex started at 4.70 mm SL. Ossification of the caudal elements started at 7.80 mm SL and was ... -
Harvesting techniques for Nile tilapia fingerlings
(Fisheries Research Society of the Philippines, 1986)The experiment was conducted in nine-320m2 - freshwater ponds to evaluate various techniques of harvesting tilapia fry. Three treatments with three replicates each were used: harvesting by seining the fry ... -
Polyculture of bighead carp, common carp and Nile tilapia in cages in Laguna lake
(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 ... -
Histological observations on the rearing of milkfish, Chanos chanos, fry using different diets
(Blackwell Publishing, 1986)Six different diets, commonly used in the Philippines for rearing milkfish, Chanos chanos, try, were tested by means of growth, survival and histology. These diets included: a) live food (Artemia nauplii); b) two different ... -
An evaluation of formulated diets for Nile tilapia fingerlings
(Fisheries Research Society of the Philippines, 1986)Nine practical diets were formulated and prepared as dry pellet crumbles. These were fed to two batches of Nile tilapia fingerlings (0.753g initial mean body weigt for trial I, and 0.961g for trial II) at 10% of fish biomass ... -
Specific amino acid-free semi-purified diets for Penaeus monodon juveniles
(Kagoshima University Research Center for the South Pacific, 1986)To determine the effects of deficiency of individual amino acids believed to be essential to Penaeus monodon juveniles, a 28-day feeding experiment was carried out with P. monodon postlarvae. P. monodon postlarvae ... -
Tilapia (T. nilotica) and Azolla (A. pinnata) cage farming in Laguna Lake
(Fisheries Research Society of the Philippines, 1986)Four batches of Azolla were grown in cages in Laguna lake between 1981 to 1983. Percent increase in weight per day ranged from 35% (Feb. 24 - March 2, 1981) to 5% (May 8 - May 12, 1983.) Best growth was attained during the ...
