Aquaculture Reports, Journal Year: 2024, Volume and Issue: 39, P. 102375 - 102375
Published: Sept. 23, 2024
Language: Английский
Fisheries and aquatic sciences, Journal Year: 2023, Volume and Issue: 26(1), P. 48 - 57
Published: Jan. 1, 2023
One of the ways to increase production for aquaculture is through cultivation monosexuals by ensuring genital reversal from which energy reproduction diverted towards growth. Masculinization has been identified as one most prominent techniques, where sex development was directed female male. This approach only altered phenotype and not genotype. The red claw crayfish (Cherax quadricarinatus) a relatively new commercial commodity, males were known grow faster than females. Hence, it proposed use monocultures comprising an all-male population yield using steroid hormone, synthetic 17α-methyltestosterone. However, this technique generated residues that detrimentally affect human health, environment, cultivated organisms. Therefore, finding safe natural sources essential, exploring hormones extracted viscera sea cucumbers (Holothuria scabra Jaeger). study focused on determination male formation testosterone levels among juvenile crayfish, after immersing in cucumber extract (SCSE). A completely random design with factorial used two variables, encompassing varied doses (0, 2, 4 mg/L, 2 mg/L 17α-methyl control group) immersion times 18 30 h. result showed dose-dependent ability SCSE promote level crayfish. In addition, influenced dose duration time, highest observed treatments h 0.248 ng/mL, while percentage 77%. conclusion, combination time significantly affected growth levels.
Language: Английский
Citations
1
Elsevier eBooks, Journal Year: 2023, Volume and Issue: unknown, P. 565 - 571
Published: Nov. 3, 2023
Language: Английский
Citations
1
General and Comparative Endocrinology, Journal Year: 2024, Volume and Issue: 354, P. 114519 - 114519
Published: April 25, 2024
Estrogen receptors (ERs) are thought to be the ancestor of all steroid and present in most lophotrochozoans studied date, including molluscs, annelids, rotifers. A number studies have investigated functional role estrogen invertebrate species, although where receptor is constitutively active. In vitro experiments provided evidence for ligand-activated raising important questions about signalling lophotrochozoan lineages. Here, we review concordant discordant estradiol lophotrochozoans, with a focus on annelids We explore de novo synthesis estrogens, evolution expression receptors, physiological responses activation phyla Annelida Rotifera. Key data missing determine if biosynthesis non-molluscan likely. For example, an ortholog CYP11 gene present, but confirmation substrate conversion measured tissue products lacking. Orthologs CYP17 CYP19 lacking, yet intermediates or (e.g. estradiol) tissues been measured. multiple limited number, show agonist binding and/or transcriptional activation. The patterns ERs suggest developmental, reproductive, digestive roles highly species dependent. E2 exposures that may play reproduction, no strong dose–response relationship has established. Therefore, expect outside perhaps platyhelminths, ER their remains elusive. Mining genomes orthologs families responsible steroidogenesis, coupled vivo pathway needed better assess whether capable biosynthesis. One major challenge much divided across diversity species. propose polychaetes Capitella teleta Platyneris dumerilii, rotifer Brachionus manjavacas choices signalling, because available genomic data, established laboratory culture techniques, knockout potential.
Language: Английский
Citations
0
Published: Jan. 1, 2024
Language: Английский
Citations
0
Aquaculture Reports, Journal Year: 2024, Volume and Issue: 39, P. 102375 - 102375
Published: Sept. 23, 2024
Language: Английский
Citations
0