AQD Journal Articles: Recent submissions
Ipinapakita ngayon ang mga item 981-1000 ng 1249
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Effect of tagging on maturation and survival of ablated Penaeus monodon in painted and unpainted tanks
(San Carlos Publications, University of San Carlos, 1989)A study was conducted to determine the effects of tags and tank color on reproductive performance and survival of pond-reared Penaeus monodon after eyestalk ablation. In 1986, the best over-all reproductive performance was ... -
Large scale hatchery production of Penaeus monodon using natural food and artificial diets
(Society of Israeli Aquaculture and Marine Biotechnology, 1991)Natural food in combination with either SEAFDEC formulated or other commercial larvae diets was tested for large scale production of Penaeus monodon postlarvae. Two trials of 3 treatments each, 2 replications of each ... -
Increasing milkfish (Chanos chanos) yields in brackishwater ponds through increased stocking rates and supplementary feeding
(Asian Fisheries Society, 1990)Brackishwater milkfish culture in the Philippines is normally practiced at fish stocking rates of 2,000-3,000 ha-1 with fertilizers as the sole nutrient input. Supplementary feeding is not common. We stocked two ... -
Lipid and fatty acid composition of brackishwater- and freshwater-reared milkfish (Chanos chanos Forskal)
(Elsevier, 1991)Lipid and fatty acid composition of the various sections of brackishwater- and freshwater-reared milkfish were determined by chromatographic methods. Lipids consisted mainly of the neutral type, which in turn was composed ... -
Occurrence and pathology of Penaeus monodon baculovirus infection in hatcheries and ponds in the Philippines
(Society of Israeli Aquaculture and Marine Biotechnology, 1991)Samples from Penaeus monodon hatcheries (2-3 day old larvae or Zoea 1 to 34 day old post larvae or PL34) and ponds (15 to 159 days old in the pond) were histologically examined for the presence of eosinophilic ... -
Induced spawning of rabbitfish, Siganus guttatus (Bloch) using human chorionic gonadotropin (HCG)
(Elsevier, 1991)A positive spawning response of rabbitfish females to two injections of HCG at 2 I.U./g BW given 24 h apart was observed. The latency period after hormone injection was inversely related to the initial oocyte size. Minimum ... -
Economic analysis of an integrated milkfish broodstock and hatchery operation as a public enterprise
(Elsevier, 1991)The National Bangus (Milkfish) Breeding Program of the Philippines, which was launched by the Philippine government in 1981, had succeeded in spawning milkfish in captivity and in rearing the eggs to fry that were stockable ... -
Isolation and characterization of vitellin from the ovary of Penaeus monodon
(International Society of Invertebrate Reproduction and Development, 1990)Female-specific protein (FSP, vitellogenin) in Penaeus monodon hemolymph and its related ovarian protein (vitellin, lipovitellin) were identified and characterized using electrophoretical and immunological procedures. The ... -
Ovarian maturation stages of the wild giant tiger prawn, Penaeus monodon Fabricius
(Elsevier, 1989)A qualitative and quantitative study of the ovarian maturation stages of wild-caught Penaeus monodon was conducted to refine the existing method of staging. For industrial purpose, measuring the ovarian width at the first ... -
Supplemental feeding of Penaeus monodon juveniles with diets containing various levels of defatted soybean meal
(Elsevier, 1990)Varying levels of defattedsoybeanmeal DSM (15, 25, 35, 45 and 55%) in supplementaldiets with approximately 40% crude protein and 10% crude fat were fed to tiger prawn juveniles in 1 m×1 m×1 m net cages set on the bottom ... -
Chlorination of seawater used for shrimp culture
(SIAMB, 1990)Chlorination of sand-filtered and microfiltered seawater for 24 hours significantly reduced the initial bacterial load from 105 to 100 - 101 colony forming units (cfu) per ml. The total ... -
The effect of stunting on growth, survival, and net production of milkfish (Chanos chanos Forsskal)
(Elsevier, 1988)The seasonal abundance of milkfish fry in the Philippines has led to the practice of buying a sufficient supply during the peak season to compensate for the shortage during slack periods. Fry that are not immediately grown ... -
Growth and mid-gut cells profile of Penaeus monodon juveniles fed water-soluble-vitamin deficient diets
(Elsevier, 1989)Growth and changes in the mid-gut cell morphology of Penaeus monodon juveniles were evaluated after feeding for 35 days with semi-purified diets deficient in water-soluble vitamins. Diets were prepared by deleting one ... -
Linoleic (ω6) and linolenic (ω3) acids in the diet of fingerling milkfish (Chanos chanos Forsskal)
(Elsevier, 1988)Feeding trials were conducted to determine the effects of linoleic acids on growth, survival, fatty acid composition and liver histology of milkfish. Five isocaloric semi-purified diets were formulated, either lipid-free ... -
Hatchery production of Oreochromis niloticus L. at different sex ratios and stocking densities
(Elsevier, 1988)The influence of various sex ratios and stocking densities on hatchery production of Nile tilapia, Oreochromis niloticus L., was studied in land-based (concrete tanks) and lake-based (hapa nets) systems. In both hatchery ... -
Evaluation of organic and inorganic fertilizers in brackishwater milkfish ponds
(Elsevier, 1989)The study was conducted in twelve 144-m2 ponds to evaluate the effect of different organic and inorganic fertilizers on the growth, survival, gross production, and profitability of marketable milkfish. The ... -
Studies on the chemical control of luminous bacteria Vibrio harveyi and V. splendidus isolated from diseased Penaeus monodon larvae and rearing water
(Inter Research, 1990)The minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) of 24 drugs for luminous bacteria Vibrio harveyi and V. splendidus were determined. Only chloramphenicol, sodium nifurstyrenate ... -
Comparison of various water replenishment and fertilization schemes in brackishwater milkfish ponds
(Blackwell Publishing, 1989)The study was undertaken to determine the optimum combination of the frequency of water replenishment and fertilization that can yield the highest growth, survival, and gross production of milkfish. Results indicated that ... -
An economic analysis of the modular pond system of milkfish production in the Philippines
(Elsevier, 1989)In 1980, the annual yield of milkfish ponds in the Philippines was 800 kg/ha while the potential yield is estimated to be 2000 kg/ha. The modular pond system analyzed in this study can largely close the gap between actual ... -
Use of kappa-carrageenan microbound diet (C-MBD) as feed for Penaeus monodon larvae
(Springer Verlag, 1989)The performance of an artificial practical diet, kappa-carrageenan microbound diet (C-MBD) was assessed on Penaeus monodon larvae at the SEAFDEC Broodstock and Maturation Experimental Laboratory in March 1986. Shrimps were ...
