Sperm Collection Time, Sex Steroid Hormones, and Gonadal Development of Black Porgy, Acanthopagrus schlegeli, Acclimated in Freshwater
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چکیده
منابع مشابه
Hematological and histological changes of black porgy Acanthopagrus schlegeli in ozonated recirculating systems
This study evaluated hemato-histological changes of black porgy in recirculating aquaculture systems (RAS) with three different ozone doses (no ozone, 20 g, and 40 g ozone/kg feed day). During the 44-day study, black porgy did not show significant behavior changes or mortalities in both the ozonated systems displaying average total residual oxidants concentrations of 0.12 and 0.25 mg/L. There w...
متن کاملMorphological Changes and Competence of Maturing Oocytes in the Protandrous Black Porgy, Acanthopagrus schlegeli
Wen-Shiun Yueh and Ching-Fong Chang (2000) Morphological changes and competence of maturing oocytes in the protandrous black porgy, Acanthopagrus schlegeli. Zoological Studies 39(2): 114-122. The study objectives aimed to investigate the morphological changes of oocytes during final oocyte maturation and ovulation, and the maturational competence of oocytes to respond to maturation-inducing ste...
متن کاملA microencapsulated analog of LH-RH accelerates maturation but without stimulating sex reversal in the protandrous black porgy, Acanthopagrus schlegeli.
The objective of this study was to regulate the reproduction and levels of gonadal steroids in 3-year-old protandrous black porgy (Acanthopagrus schlegeli) by treatment with microencapsulated D-Trp6-luteinizing hormone-releasing hormone (LH-RH analog) during the prespawning season. Twenty-four previously male black porgy were equally divided into 2 groups and injected with vehicle (control grou...
متن کاملDevelopment of Ovarian Tissue and Female Germ Cells in the Protandrous Black Porgy, Acanthopagrus schlegeli (Perciformes, Sparidae)
Oocyte and ovarian development, growth, and maturation have been described in many gonochoric fish: in the swordfish (Xiphias gladitus) by Arocha (2002), striped bass (Morone saxatilis) by Mylonas et al. (1997), carp (Cyprinus carpio) by Linhart et al. (1995), zebrafish (Brachydanio rerio) by Selman et al. (1993), pipefish (Syngnathus scovelli) by Begovac et al. (1988), red sea bream (Pagrus ma...
متن کاملMorphological Development of Larvae and Juveniles of Acanthopagrus schlegeli
Newly hatched black porgy larvae (Acanthopagrus schlegeli) swam to the surface, with the mouth and anus still closed and were 1.90-2.11 mm (mean, 2.0 mm) in total length (TL). The larvae were 2.71-2.94 mm TL (mean, 2.82 mm) on day 2 after hatching. At this time, about two-thirds of the yolk was absorbed, the bladder and intestines had formed, and the mouth and anus were open. Total length was 4...
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ژورنال
عنوان ژورنال: Korean Journal of Fisheries and Aquatic Sciences
سال: 2010
ISSN: 0374-8111
DOI: 10.5657/kfas.2010.43.5.474