Now showing items 1-10 of 10

    • Article

      Growth rate of the Philippine abalone, Haliotis asinina fed an artificial diet and macroalgae 

      EC Capinpin Jr. & KG Corre - Aquaculture, 1996 - Elsevier
      The growth rate of Haliotis asinina fed three diets was evaluated over a 120 day period. Juveniles fed the red alga Gracilariopsis heteroclada and an artificial diet grew faster in terms of both total body weight and shell length than those fed the red alga Kappaphycus alvarezii. Juveniles fed the artificial diet produced more weight than those fed G. heteroclada for the first 90 days, but abalone fed G. heteroclada grew faster from Day 105 onwards. In terms of shell length, the artificial diet produced faster growth rates than G. heteroclada for the first 75 days but from Day 90 onwards, faster growth rates were observed in juveniles fed G. heteroclada. Reductions in daily growth rates of juveniles during the latter phase of the growth trial were attributed to channelling of energy into gonad development. G. heteroclada promoted high growth rates over a long-term period (360 days) and is considered to be best suited for abalone farming in the Philippines.
    • Article

      The growth, survival and production of shrimp (Penaeus monodon) cultured with green mussel (Perna viridis) in semi-intensive ponds 

      KG Corre, VL Corre & W Gallardo - UPV Journal of Natural Sciences, 1997 - University of Philippines in the Visayas
      The culture of tiger shrimps (Penaeus monodon) with and without green mussels (Perna viridis) was compared in terms of animal growth, survival, production, and pond water quality. Tiger shrimps (2.6 g) were stocked at 50,000/ha in six 1,000 m2 earthen ponds. Green mussels (mean shell-on weight of 11 g) were stocked at 100,000/ha on ropes suspended from bamboo rafts in three of these ponds. The growth and survival of tiger shrimps were not significantly different when cultured with or without mussels. Higher shrimp production (1,528.2 kg/ha) was obtained when these were cultured with mussels than without (1,327.5 kg/ha). Water quality did not vary significantly between treatments but ponds with both shrimp and mussel had lesser algae, lower biological oxygen demand and particulate organic matter levels, and generally higher morning dissolved oxygen concentrations compared with ponds without mussels. Results show the potential of green mussels as biological filters in shrimp ponds.
    • Conference paper

      Integrated farming of broiler chickens with fish and shrimp in brackishwater ponds 

      BJ Pudadera Jr., KG Corre, E Coniza & GA Taleon - In JL Maclean, LB Dizon & LV Hosillos (Eds.), The First Asian Fisheries Forum. Proceedings of the First Asian Fisheries Forum, 26-31 May 1986, Manila, Philippines, 1986 - Asian Fisheries Society
      An experiment on the integrated farming of broiler chickens with milkfish (Chanos chanos), tilapia (Oreochromis niloticus) and shrimp (Penaeus indicus) in brackishwater ponds was conducted in 1,000-m2 ponds of the SEAFDEC Research Station at Leganes, Iloilo, Philippines. Tested were varying densities of tilapia (500, 1,000, 1,500 and 2,000 for Treatments I-IV, respectively) with fixed densities of 5,000 shrimp and 200 milkfish per 1,000-m2 pond. Poultry houses were constructed at the middle of each pond so that fresh chicken wastes would drop directly to the pond. Each unit was stocked with 90 broiler heads of three size groups, or a total of 180 heads for 120 pond culture days. Stocking, transfer and harvest of poultry were done every two weeks. Results indicated an average net production of shrimp of 19.15 to 28.38 kg/1,000 m2; milkfish, 7.51 to 11.74 kg/1,000 m2; tilapia, 33.68 to 66.97 kg/1,000 m2 and chicken broilers, 180.90 to 217.39 kg/1,000 m2. Statistical analysis revealed that the best net production of tilapia was obtained at a stocking density of 15,000/ha.
    • Conference paper

      Nursery and grow-out operation and management of Penaeus monodon (Fabricius) 

      KG Corre - In JV Juario & LV Benitez (Eds.), Seminar on Aquaculture Development in Southeast Asia, 8-12 September 1987, Iloilo City, Philippines, 1988 - Aquaculture Department, Southeast Asian Fisheries Development Center
      The results of research on nursery and grow-out rearing of prawn conducted by the SEAFDEC Aquaculture Department for over a decade are reviewed. Different rearing facilities designed to accommodate hatchery-produced prawn fry are presented with corresponding data on growth, survival and production. Studies on stocking density, fertilization/natural food production, water management, feeds and feeding schemes and harvest/post-harvest handling are evaluated and viable technology identified. Diseases, pests and predators and other factors considered as production constraints are also mentioned.

      The success in hatchery operation for prawn coupled by the gradual emergence of nursery and grow-out rearing technology have triggered off a technology-dependent prawn industry. When SEAFDEC AQD was established in 1973, there were very few commercial prawn monoculture ventures in the country. Prawn pond production was mostly an incidental crop in milkfish culture. At present, various prawn grow-out techniques ranging from extensive, semi-intensive and intensive culture systems are in practice. SEAFDEC AQD focused its research on the extensive and semi-intensive culture systems which are within the reach of most farmers in contrast to the intensive system that is highly capital-intensive.

      There have been much work done in nursery and grow-out operations, but much remains to be done in research, among which are the development of nutritionally-efficient and low-cost feed, control of diseases, etc.
    • Conference paper

      Polyculture of the tiger shrimp (Penaeus monodon) with Nile tilapia (Oreochromis niloticus) in brackishwater fishponds 

      A study was conducted in fifteen 500-m2 ponds to determine the growth, survival and production of Penaeus monodon (Fabricius) in polyculture with Oreochromis niloticus (Linnaeus) and the extent of competition between shrimp and tilapia in brackishwater ponds. The treatments consisted of: (I) P. monodon at 6,000/ha; (II) O. niloticus at 6,000/ha; (III) O. niloticus at 4,000/ha; (IV) P. monodon at 6,000/ha plus O. niloticus at 6,000/ha; and (V) P. monodon at 6,000/ha plus O. niloticus at 4,000/ha. A completely randomized design with three replicates was used.

      Treatment V gave the highest total production (283.32 kg/ha) followed by Treatment IV (221.24 kg/ha). Treatment I had the lowest total production. Analysis of variance on total production showed significant differences (p < 0.05) among treatments. Polyculture treatments (Treatments V and IV) were not different in terms of production but significant differences were observed between polyculture (Treatment V) and monoculture treatments (Treatments I, II and III). Mean net production of shrimp alone was highest in Treatment V followed by Treatment I and Treatment IV but were not significantly different between treatments. A similar trend was observed on the mean weight gain and percentage survival of P. monodon. Mean net production of O. niloticus was relatively low in all treatments. The low production of O. niloticus in all treatments was due to low survival (33% to 52%) and slow growth.

      Competition was evident between P. monodon and O. niloticus at a stocking combination of 6,000 P. monodon/ha plus 6,000 O. niloticus/ha. Total yield from polyculture was better than monoculture. Polyculture of P. monodon at 6,000/ha and O. niloticus at 4,000/ha appeared feasible.
    • magazineArticle

      Sandfish: Profitable cea cucumbers also supply bioremediation 

      MT Castaños, RV Ledesma, KG Corre & EG de Jesus-Ayson - Global Aquaculture Advocate, 2011 - Global Aquaculture Alliance
      Sandfish, a type of sea cucumber, are both a high-value culture species and one that supports the aquaculture of other fish species by cleaning up waste on the bottoms of ponds or sea cages. Hatchery and nursery technologies for sandfish are being continuously refined by Vietnam’s Research Institute of Aquaculture No. 3, the Southeast Asian Fisheries Development Center and their partners. These technologies have also been initially transferred to the private sector through a training course and manual.
    • Conference paper

      SEAFDEC/AQD experience in mangrove-friendly aquaculture training and extension 

      RF Agbayani & KG Corre - In JH Primavera, LMB Garcia, MT Castaños & MB Surtida (Eds.), Mangrove-Friendly Aquaculture : Proceedings of the Workshop on Mangrove-Friendly Aquaculture organized by the SEAFDEC Aquaculture Department, January 11-15, 1999, Iloilo City, Philippines, 2000 - Southeast Asian Fisheries Development Center, Aquaculture Department
      SEAFDEC Aquaculture Department (SEAFDEC/AQD) is mandated to develop human resources and disseminate and exchange information in aquaculture. Towards this direction, AQD’s recent thrusts are focused on the verification, packaging, and commercialization of the technologies developed through research. AQD disseminates and exchanges information on aquaculture research and technology through training, extension services, community-based projects and mass media. Through these strategies, AQD aims to reach out to more clientele which include among other sectors the private industry, research and academic institutions, regional and international organizations, policy-makers, non-government organizations, resource managers, SEAFDEC member-countries, local and national government and the fisherfolk.

      For the past two years, the scope of training courses and extension services of AQD have been expanded from technological viability to sustainability i.e., technological feasibility, economic viability, environmental sustainability and social equity. To attain sustainable aquaculture the following elements were considered: status of technology, conditions of the coastal resources, socio-economic attributes of the community and other stakeholders and institutional arrangements on sustainable aquaculture.

      Starting 1997, subjects on mangrove-friendly aquaculture and coastal resource management were incorporated into the curriculum of training courses. These courses are the following:

      • Third Country Training Program on Coastal Aquaculture and Resource Management for trainees from Asian countries
      • On-site Training on Sustainable Aquaculture and Coastal Resource Management in Vietnam
      • Sustainable Aquaculture and Coastal Resource Management for extension workers and fishery school teachers

      In terms of technology verification and extension, the culture of mudcrab (Scylla sp.) was tested in mangroves or tidal flats with existing mangroves in two different sites (Puerto Princesa, Palawan and Kalibo, Aklan) in collaboration with local government units and the fisherfolk. These activities started in 1997 and will be replicated in other areas of the country. Also in 1997, AQD published and distributed an issue on integrated farming with aquasilviculture in its SEAFDEC Asian Aquaculture newsletter. In 1998, AQD produced a 12-minute video on Conserving Mangrove Resources.
    • Book

      Shrimp hatchery design, operation and management 

      P Kungvankij, LB Tiro Jr., BJ Pudadera Jr., IO Potestas, KG Corre, EL Borlongan, GA Talean, LF Bustilo, ET Tech, A Unggui & TE Chua - 1986 - Network of Aquaculture Centres in Asia
      Series: Aquaculture extension manual; No. 14
      Details are given of factors to be taken into account for successful hatchery operation. The following aspects are covered: 1) site selection; 2) hatchery design and construction; 3) life cycle; 4) preparation of broodstock for spawning; 5) larval feed; 6) spawning, hatching and larval rearing facilities; 7) spawner selection and egg collection 8) nauplii hatching and transportation; 9) larval rearing; 10) routine hatching, management; 11) port-larvae nursery; and 12) larval harvesting and transportation.
    • magazineArticle

      Sustainable aquaculture and coastal resource management 

      FLC Gapasin, RF Agbayani & KG Corre - SEAFDEC Asian Aquaculture, 1999 - Aquaculture Department, Southeast Asian Fisheries Development Center
    • Training program of SEAFDEC/AQD 

      KG Corre - In Training Handbook on Rural Aquaculture, 2009 - Aquaculture Department, Southeast Asian Fisheries Development Center