Effect of Exogenous Hormones on Spermiation in the Starry Flounder Platichthys stellatus
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چکیده
منابع مشابه
In Vitro Steroidogenesis on Oocyte Development in the Starry Flounder, Platichthys stellatus
In this study, oocyte steroidogenesis are investigated in relation to oocyte development in the starry flounder, Platichthys stellatus, a marine multiple spawner. Vitellogenic (0.52 and 0.55 mm oocyte diameter) and mature oocytes (0.63, 0.66 and 0.71 mm oocyte diameter) were incubated in vitro in the presence of [(3)H]17α-hydevrepoxyprogesterone ([(3)H]17α-OHP) as a precursor. Steroid metabolit...
متن کاملRespiratory, ventilatory, and cardiovascular responses to experimental anaemia in the starry flounder, Platichthys stellatus.
Unrestrained, quiescent starry flounder maintained approximately normal levels of O2 uptake in the face of severe experimental anaemia. At haematocrits above about 5%, the only major compensation was a reduction in venous O2 tension which lowered venous saturation and thereby kept a constant difference between arterial and venous O2 contents. Below a haematocrit of about 5%, this difference dec...
متن کاملThe First Report of a Megalocytivirus Infection in Farmed Starry Flounder, Platichthys stellatus, in Korea
In 2009, a systemic megalocytivirus infection associated with high mortality was detected for the first time in cultured starry flounder Platichthys stellatus in Korea. Diseased starry flounder had pale bodies and gill coloring and enlarged spleens. Histopathological examinations revealed basophilic enlarged cells in various organs of diseased starry flounder. Polymerase chain reaction (PCR) wa...
متن کاملMorphological Analysis of Blind-Side Hypermelanosis of the Starry Flounder, Platichthys stellatus during Early Development
In Pleuronectiformes, blind-side malpigmentation (hypermelanosis) is common in cultured flatfishes, and is economically important. To understand the mechanism of blind-side hypermelanosis in flatfishes, we examined when the malpigmentation initially occurred, and studied how the symptoms proceeded during early development of the starry flounder, Platichthys stellatus. To assess quantitative pat...
متن کاملWild and Hatchery Populations of Korean Starry Flounder (Platichthys stellatus) Compared Using Microsatellite DNA Markers
Starry flounder (Platichthys stellatus) is an important sport and food fish found around the margins of the North Pacific. Aquaculture production of this species in Korea has increased because of its commercial value. Microsatellite DNA markers are a useful DNA-based tool for monitoring the genetic variation of starry flounder populations. In this study, 12 polymorphic microsatellite DNA marker...
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ژورنال
عنوان ژورنال: Journal of the Korean Fisheries Society
سال: 2007
ISSN: 0374-8111
DOI: 10.5657/kfas.2007.40.6.374