Now showing items 1-20 of 125

    • Bacteria from seawater used in Penaeus monodon larval cultures 

      Llobrera, Alcestis T.; Gacutan, Rogelio Q. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      Bacteria in the seawater used in P. monodon hatchery operations were isolated on Bachmann's agar. The total plate counts in 25 isolations ranged from 1.0 - 5.0 x 102 to 5.1 -10.0 x 105 cells per ml. ...
    • Reduction in Chaetoceros populations by furanace 

      Baticados, Ma. Cecilia L.; Gacutan, R. Q. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      One of the most promising prophylactic agents being tested to control Penaeus monodon larval diseases is furanace (6-hydroxymethyl-2 2(5-nitro-2-furyl) vinyl pyridine). To evaluate further its suitability as a chemotherapeutic ...
    • The propagation of the mud crab Scylla serrata (F.) de Haan 

      Laviña, Alice Fe D.; Buling, Amalia S. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      The mud crab Scylla serrata is an important commercial species found in many brackish areas in the Philippines. During spawning and hatching, the berried females migrate to the sea. Seeds for pond stocking are obtained ...
    • Identification and culture of common diatoms as possible feed for Penaeus monodon 

      Pimoljinda, Thanom (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      Diatoms were collected from Buyuan Bay, and from the hatchery tanks at Tigbauan, to determine the commonly occurring species, the feasibility of culturing these species, and the potential of these selected species as food ...
    • A suctorean parasite of Penaeus monodon larvae 

      Gacutan, Rogelio Q.; Llobrera, Alcestis T.; Santiago, Corazon B.; Gutierrez, P. J.; Lio, Gilda (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      A new disease caused by a suctorean has been observed in tank-spawned and reared P. monodon larvae. Identification of the etiologic agent pointed to Ephelota gemmipara R. Hertwig, a species commonly found to inhabit hydroid ...
    • Effect of nitrite, ammonia, and temperature on P. monodon larvae 

      Catedral, Francis Fred; Gerochi, Dante D.; Quibuyen, Anacleto T.; Casalmir, Candelaria M. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      P. monodon larvae were studied for the effects of temperature, ammonia, and nitrite on survival. Toxicity levels of nitrite were found to vary with larval stage. Larvae could tolerate ammonia up to about 10 ppm, with the ...
    • Amino acid analysis of P. monodon muscle 

      Catedral, Francis Fred; Dy-Peñaflorida, Veronica A. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      Figures for the amino acid composition of Penaeus monodon, are tabulated, and compared to those for white tuna meat.
    • Notes on ovarian rematuration of ablated sugpo (prawn) Penaeus monodon Fabricius 

      Primavera, Jurgenne H. ORCID; Borlongan, Emeterio (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      To what extent spent P. monodon females can remature and spawn successive broods is an important question in terms of recycling spawners in a commercially viable operation. Corollary to this is the quantity and quality of ...
    • Laboratory breeding of the mud crab Scylla serrata (Forskal) through the zoea and megalopa stages to the crab stage 

      Motoh, Hiroshi; de la Peña, Dioscoro; Tampos, Edmond (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      A series of experiments is being conducted to establish breeding techniques to mass-produce seedlings of S. serrata for pond cultivation to meet the commercial demand for the crab. The objective is to culture the crab ...
    • Preliminary chemical and physical evaluation of some formulated feeds for P. monodon 

      Kalaw, Josie; Bandonil, Lillian; Dy, Veronica (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      The culture of Penaeus monodon has explicitly defined the need for diet formulations or supplementary feeds that would promote optimum growth and survival of the animal. A total of 28 feed combinations were developed for ...
    • Effects of furanace on Brachionus 

      Baticados, Ma. Cecilia; Gacutan, Rogelio Q.; Gutierrez, P. J. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      Tiger prawn P.monodon) larvae utilize Brachionus a rotifer, as food in the Zoea 3 and mysis stages when they change from an herbivorous to an omnivorous diet. The present work aims to show the effects of furanace on the ...
    • Preliminary biological evaluation of some formulated feeds for P. monodon 

      Pascual, Felicitas; Bandonil, Lillian (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      Rice bran is widely used by fish farmers as supplementary feed while soybean cake is used both as feed and as fertilizer in fishponds. Both fish meal and shrimp head have been found acceptable as feed ingredients. However, ...
    • The effect of various protein levels on the growth and survival rates of Penaeus monodon Fabricius 

      Khannapa, Auaychai (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      Postlarvae of tiger prawns, P. monodon , were fed with various protein levels of 0; 30; 40 and 50%, fish meal and rice bran were combined and pelletized for 16 wks. Prawns used had an average mean length of 1.2 mm and an ...
    • Isolation and culture in artificial media of Lagenidium from Penaeus monodon larvae 

      Baticados, Ma. Cecilia L.; Po, Gilda L.; Lavilla, Celia R.; Gacutan, Rogelio Q. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      Fungal infection of P. monodon larvae is a problem in hatchery operations. The fungus, which attacks the nauplius to postlarval stages and causes up to 100% mortality, has been tentatively identified as belonging to the ...
    • Viability of Penaeus monodon eggs after simulated transport conditions 

      Primavera, Jurgenne H. ORCID; Borlongan, Emeterio; Posadas, Ruth A. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      P. monodon spawners, transported from maturation pens suffer from stress which in turn may lead to lowered spawning rate or fertility. Spawning the females in the maturation site and transporting the eggs to the hatchery ...
    • Bioenergetics of the freshwater prosobranch Idiopoma angularis Muller in Laguna de Bay 

      Baluyut, Elvira A. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      This study was made as an attempt to investigate some of the ecological aspects of the freshwater snail Idiopoma angularis Muller in a modern framework of energy flow and mathematical models. It offers the first investigation ...
    • Use of fermented kitchen waste in rearing Penaeus monodon larvae 

      Motoh, Hiroshi (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      Fermented vegetable and kitchen wastes are available as feeds for not only zoea but also mysis and up to certain points in the postlarval stages of sugpo, Penaeus monodon. It is recommended that the hatchery use fermented ...
    • Notes on the induced maturation and spawning in four-month-old Penaeus monodon Fabricius by eyestalk ablation 

      Primavera, Jurgenne H. ORCID; Borlongan, Emetrio (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      The ablation technique consisted of making an incision across the eyeball to allow free flow of fluids while holding the prawn under water, squeezing the eyeball contents outwards, and pinching hard the eyestalk tissue. ...
    • Notes on the external sex characters of Chanos chanos Forskal spawners 

      Chaudhuri, H.; Juario, J.; Samson R.; Mateo, Rodolfo (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)
      In this study, the authors did not find any visible differences between the sexes with reference to external features such as coloration, shape of head, snout and operculum, presence of tubercles or nasal pores, length, ...
    • Effect of temperature on the oxygen consumption of Penaeus monodon postlarvae 

      Catedral, F. F.; Sayson, R. (Aquaculture Department, Southeast Asian Fisheries Development Center, 1977)