著者 "Quinitio, Gerald F." のブラウズ: 03 SEAFDEC/AQD External Publications
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Series: ACIAR Monograph 110
Amino and fatty acid profiles of wild-sourced grouper (Epinephelus coioides) broodstock and larvae
Alava, Veronica R.; Priolo, Flora Mae P.; Toledo, Joebert D.; Rodriguez, Jesus C., Jr.; Quinitio, Gerald F.; Sa-an, Analyn C.; de la Peña, Milagros R.; Caturao, Romeo D. (Australian Centre for International Agricultural Research, 2004)This study was undertaken to provide information on the levels of amino acids in the muscle, liver and gonad of wild-sourced broodstock and larvae, as well as in neurula eggs and day 35 larvae from a hatchery. The fatty ... -
Series: ACIAR Monograph 110
Changes in the gastrointestinal tract and associated organs during early development of the grouper (Epinephelus coioides)
Quinitio, Gerald F.; Sa-an, Analyn C.; Toledo, Joebert D.; Tan-Fermin, Josefa D. (Australian Centre for International Agricultural Research, 2004)The histomorphological changes in the gastrointestinal tract of Epinephelus coioides and associated organs during its early development were studied. Larvae of E. coioides were reared in 5-tonne tanks using the semi-intensive ... -
Comparative study on the embryonic development of three mud crabs Scylla spp.
Ates, Maria Charmela D.; Quinitio, Gerald F.; Quinitio, Emilia T. ; Sanares, Roman C. (Blackwell Publishing, 2012)Morphological changes in the embryos, egg size and development, incubation period and morphological structures of newly hatched zoea of three mud crab Scylla species were determined. The three species exhibited similar ... -
A comparison of the annual changes in testicular activity and serum androgen levels between the early and delayed maturing groups of male Cottus hangiongensis
Quinitio, Gerald F.; Goto, Akira; Takahashi, Hiroya (Springer Verlag, 1992)Annual changes in testicular activity and concentration of two serum androgens were monitored in two groups of the river-sculpin Cottus hangiongensis collected from the upper and lower reaches of a river at southern Hokkaido, ... -
Egg quality of grouper Epinephelus coioides fed different fatty acid sources
Quinitio, Gerald F.; Coloso, Relicardo M.; Caberoy, Nora B.; Toledo, Joebert D.; Reyes, Deogracias M., Jr. (American Fisheries Society, Physiology Section, 1996)Quality of eggs spawned by Epinephelus coioides fed fish by catch (control). Cod liver oil-enriched fish by catch (TFC), and commercial HUFA A-enriched fish by catch (TFS) was monitored. Monthly egg production, spawning ... -
Series: ACIAR Monograph 110
Environmental factors affecting embryonic development, hatching and survival of early stage larvae of the grouper (Epinephelus coioides)
Toledo, Joebert D.; Caberoy, Nora B.; Quinitio, Gerald F. (Australian Centre for International Agricultural Research, 2004)These series of experiments were conducted to determine the effects of density (200, 400, 800 and 1600 eggs/litre), salinity (8, 16, 24, 32 and 40 ppt), aeration (0, 0.62, 1.25, 2.50 and 3.75 ml/min/litre) and light intensity ... -
Induction of sex change in female Epinephelus coioides by social control
Quinitio, Gerald F.; Caberoy, Nora B.; Reyes, Deogracias M., Jr. (Society of Israeli Aquaculture and Marine Biotechnology, 1997)Mature female groupers (Epinephelus coioides) of different sizes were stocked in three floating net cages (2 fishes each) and in tanks (2-4 fishes) to induce sex change in the bigger female grouper after isolation from the ... -
Series: ACIAR Monograph 110
Lipid nutrition studies on grouper (Epinephelus coioides) larvae
Alava, Veronica R.; Priolo, Flora Mae P.; Toledo, Joebert D.; Rodriguez, Jesus C., Jr.; Quinitio, Gerald F.; Sa-an, Analyn C.; de la Peña, Milagros R.; Caturao, Romeo D. (Australian Centre for International Agricultural Research, 2004)The main objectives of this project were to study the lipid chain transfer from the egg stage through hatching and the patterns of lipid conservation or loss during starvation and feeding of larvae in order to elucidate ... -
Series: ACIAR Monograph 110
Localisation of enzymes in the digestive system during early development of the grouper (Epinephelus coioides)
Quinitio, Gerald F.; Sa-an, Analyn C.; Toledo, Joebert D.; Tan-Fermin, Josefa D. (Australian Centre for International Agricultural Research, 2004)This study was undertaken to investigate the occurrence of some digestive enzymes in the gastrointestinal tract during early development in the grouper. This work was conducted to provide information on formulating an ... -
Mariculture techniques for Epinephelus sp. in the Philippines
Quinitio, Gerald F.; Toledo, Joebert D. (Philippine Council for Aquatic and Marine Research and Development; French Embassy in the Philippines, 1991)This paper reviews the status of different techniques that are presently practiced for Ephinephelus sp. culture in the Philippines. Constraints and problems encountered as well as possible solutions are also discussed. -
Occurrence of aberrant spermatids in the freshwater sculpin, Cottus nozawae Snyder
Quinitio, Gerald F.; Takashi, H. (Asian Fisheries Society, 1994)Light and electron microscopic investigation were conducted on the spermatogenic cell in the testis of the freshwater sculpin, Cottus nozawae. Light microscopic examination showed that two types of spermatids, normal and ... -
Possible application of mibolerone for induced sex inversion of grouper Epinephelus coioides
Quinitio, Gerald F.; Tan-Fermin, Josefa D.; Nagai, Akimasa (Japanese Society of Fisheries Science, 2001)Thirty immature juvenile grouper Epinephelus coioides (19-168 g bodyweight, BW) were randomly stocked in four units 6 t tanks to determine if mibolerone can be used to induce sex inversion in groupers. After acclimatization ... -
Sensitivity of grouper Epinephelus coioides eggs to handling stress at different stages of embryonic development
Caberoy, Nora B.; Quinitio, Gerald F. (Society of Israeli Aquaculture and Marine Biotechnology, 1998)The sensitivity of grouper Epinephelus coioides eggs to handling stress at different stages of embryonic development was investigated. Naturally-spawned grouper eggs in floating net cages were collected and handled at the ... -
An ultrastructural study on the occurrence of aberrant spermatids in the testis of the river sculpin, Cottus hangiongensis
Quinitio, Gerald F.; Takahashi, Hiroya (The Ichthyological Society of Japan, 1992)The process of spermatogenesis and spermiogenesis in the river sculpin,Cottus hangiongensis, was observed ultrastructurally. During spermatogenesis, some germinal cysts in the seminal lobules were found to contain ... -
Ultrastructure of the anterior intestinal epithelia of the orange-spotted grouper Epinephelus coioides larvae under different feeding regimes
Primavera-Tirol, Y. H.; Coloso, R. M.; Quinitio, G. F.; Ordonio-Aguilar, R.; Laureta, L. V., Jr. (Springer Verlag, 2014)Enterocytes of the anterior to midsection of the intestine in grouper Epinephelus coioides larvae were compared among different treatments: unfed to the point-of-no-return (PNR), fed natural food only, and co-fed natural ...