Results 31 to 40 of about 21,199 (260)

EFFECT OF THE DOPAMINE ANTAGONIST, DOMPERIDONE ALONE AND IN COMBINATION WITH THYROXINE, CLOMIPHENE, hCG OR GnRH ON SERUM SEX STEROIDS PROFILE, GONADAL MATURATION AND SPAWNING OF NILE CATFISH, CLARIAS LAZERA. [PDF]

open access: yesVeterinary Medical Journal - Giza, 1999
The present investigation was carried out on one hundred and twenty mature Clarias lazera fish during the prespawning season (March - April). Fish were allocated into two main groups (sixty fish of each sex). Fish weight ranged between 200-220 g. b.
H ABASS
doaj   +1 more source

Minipuberty of human infancy – A window of opportunity to evaluate hypogonadism and differences of sex development? [PDF]

open access: yesAnnals of Pediatric Endocrinology & Metabolism, 2020
Activation of the hypothalamic-pituitary-gonadal (HPG) axis happens in 3 phases during life. The first phase is during fetal life and is only separated from the second phase, called minipuberty, by the high concentration of placental hormones at birth ...
Christoffer Højrup Renault   +5 more
doaj   +1 more source

Gonadal Maturation and Spawning of Barred Loach (Nemacheilus fasciatus) Induced by Topical Gill Hormone Application

open access: yesJurnal Medik Veteriner
Barred loach Nemacheilus fasciatus are unable to reproduce naturally in captivity due to the lack of environmental cues and gonadal maturation occurs slower than in the wild.
Darmawan Setia Budi   +5 more
doaj   +1 more source

Distinctive metabolite profiles in migrating Amur ide (Leuciscus waleckii) reveal changes in osmotic pressure, gonadal development, and energy allocation strategies

open access: yesFrontiers in Environmental Science, 2022
Amur ide (Leuciscus waleckii) lives in alkali-saline water (pH = 9.6) in the Lake Dali and spawns in freshwater rivers after migration annually. During spawning migrations, Amur ide not only experience osmoregulation modification from alkali-saline water
Shuangyi Wang   +12 more
doaj   +1 more source

Comparative analysis of the reproductive activity of Leporinus piau (Characiformes: Anostomidae) in lentic and lotic environments [PDF]

open access: yesNeotropical Ichthyology, 2020
In this study, we determined the main reproductive parameters of piau gordura, Leporinus piau, in two sections of the São Francisco River basin. Between May 2015 and April 2016, a total of 573 specimens were captured from a lentic environment (section 1),
Aline Virtude do Nascimento   +5 more
doaj   +2 more sources

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

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

Clinical, Histopathological, and Molecular Characterization of Pediatric MN1::ZNF341‐Associated Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT A lethal round‐cell malignancy with an MN1::ZNF341 fusion has recently been reported in three infants. Here, we describe four further tumors, three in newborns (including monozygotic twins), and one in an adolescent. Detailed clinical, radiological, and histopathological data differentiate these tumors from their main mimics, neuroblastoma and
Thomas R. W. Oliver   +25 more
wiley   +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

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

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