Results 41 to 50 of about 49,943 (331)

A case of intersex occurrence in Steindachneridion parahybae (Steindachner, 1877) (Siluriformes: Pimelodidae) under captivity condition: A cytogenetic and morphological study [PDF]

open access: yes, 2016
Poco se sabe sobre la biología reproductiva de Steindachneridion parahybae , una especie de teleósteo gonocorístico en peligro de extinción que habita la cuenca del río Paraíba do Sul y en éste trabajo se describe por primera vez la aparición de ...
Caneppele, Danilo   +4 more
core   +2 more sources

Multi-omics profiling reveals the lipid metabolism during gonadal maturation in male Chinese mitten crab (Eriocheir sinensis)

open access: yesAquaculture Reports
Well-developed gonads determine the edible quality and progeny quality of the Chinese mitten crabs (Eriocheir sinensis). However, there are fewer studies on gonad development in male crabs.
Jianxiang Chen   +12 more
doaj   +1 more source

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

Steroid Hormone Profile and Sperm Quality of Silver Pompano (Trachinotus blochii) Fed Tribullus terrestris Extract and Gonadotropin Hormone

open access: yesJurnal Ilmiah Perikanan dan Kelautan
Graphical Abstract   Highlight Research 1. Hormonal approaches are needed for the maturation of the broodstock's gonads; 2. The use of gonad maturation stimulants, both hormonal and herbal, in the aquaculture sector has been widely used, where
Azizah Azizah   +4 more
doaj   +1 more source

Integrative Transcriptome Sequencing Reveals the Molecular Difference of Maturation Process of Ovary and Testis in Mud Crab Scylla paramamosain

open access: yesFrontiers in Marine Science, 2021
The mud crab Scylla paramamosain is a species with significant sexual dimorphism in growth rate and body size, of which the females are of higher economic and nutritional values than the males.
Wenxiao Cui   +19 more
doaj   +1 more source

Nesfatin-1-like peptide suppresses hypothalamo–pituitary–gonadal mRNAs, gonadal steroidogenesis, and oocyte maturation in fish†

open access: yesBiology of Reproduction, 2020
AbstractNucleobindin (Nucb)-1 and Nucb2 are DNA and Ca2+ binding proteins with multiple functions in vertebrates. Prohormone convertase-mediated processing of Nucb2 results in the production of biologically active nesfatin-1. Nesfatin-1 is involved in the regulation of reproduction in many vertebrates, including fish.
Jithine Jayakumar, Rajeswari   +2 more
openaire   +2 more sources

Characterization of the ovary fatty acids composition of Rhamdia quelen (Quoy & Gaimard) (Teleostei: Siluriformes), throughout their reproductive cycle

open access: yesNeotropical Ichthyology
Knowledge about gonad fatty acid composition is important for broodstock diet formulation. This study characterized ovary fatty acid composition of wild female jundiá catfish (Rhamdia quelen) in their different gonadal maturation stages. Female jundiá (n
Rodrigo Vargas Anido   +4 more
doaj   +1 more source

Reproduction of Oligosarcus hepsetus (Cuvier, 1829) (Characiforms) in the Serra do Mar State Park, São Paulo, Brazil Reprodução de Oligosarcus hepsetus (Characiformes) no Parque Estadual da Serra do Mar, São Paulo, Brasil

open access: yesBrazilian Journal of Biology, 2008
The purpose of this study was to characterize the reproduction of Oligosarcus hepsetus in the Grande river (Santa Virginia Unit - Serra do Mar State Park) based on the reproductive period, length of first gonadal maturation for both sexes, sexual ...
LM. Gomiero, L. Garuana, FMS. Braga
doaj   +1 more source

Treatment of Girls and Boys with McCune-Albright Syndrome with Precocious Puberty - Update 2017 [PDF]

open access: yes, 2017
The most common endocrinopathy associated with McCune-Albright Syndrome (MAS) is peripheral precocious puberty (PP) which occurs far more often in girls than in boys.
Eugster, Erica A., Neyman, Anna
core   +1 more source

Three‐Dimensional Ovary Model to Improve and Study Murine Follicle Growth

open access: yesAdvanced Healthcare Materials, EarlyView.
To develop new methods for fertility preservation in women, novel culture systems for small follicles need to be established. In this work, a poly(ethylene glycol) based scaffold, with appropriate mechanical and bioactive features to support mouse follicle and ovary cell growth is developed, and the formed cell‐follicle interactions are visualized ...
Mira Jacobs   +6 more
wiley   +1 more source

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