Results 21 to 30 of about 24,051 (299)

A review on ghrelin and fish reproduction

open access: yesReproduction and Breeding, 2021
Ghrelin is a multifunctional peptide hormone which dominantly secreted in stomach and intestine. Ghrelin involves in growth control, food intake, energy balance, and reproductive process.
Huan Zhong, Yi Hu, Fan Yu
doaj   +1 more source

Gonadoblastoma Arising in Undifferentiated Gonadal Tissue within Dysgenetic Gonads [PDF]

open access: yes, 2006
Purpose: The purpose of the study was to define the histological origin of gonadoblastomas, allowing the identification of high-risk patients. Experimental Design: Sixty paraffin-embedded gonadectomy or gonadal biopsy samples of 43 patients with ...
Kula, Krzysztof   +20 more
core   +1 more source

Induksi Kematangan Gonad Induk Jantan Kerang Abalone (Haliotis asinina) dengan Metode Laserpunktur
[Induction Of Gonad Maturity Males Broodstock Abalone Shell (Haliotis asinina) With Laserpunctur Methods ]

open access: yesJurnal Ilmiah Perikanan dan Kelautan, 2012
Abalone is one kind of shellfish fisheries of the world has become a commodity which is currently experiencing increased demand, especially from international markets.
Sudarno Sudarno   +2 more
doaj   +1 more source

EFECT OF LASERPUNCTURE INDUCTION TO INCREASE GSI AND HSI MALE CATFISH BROODSTOCKS

open access: yesJFMR-Journal of Fisheries and Marine Research, 2020
Induction of laser puncture in the male catfish broodstock has a positive influence by increasing reproductive activity which is very helpful for the process of gonadal maturation.
Dyah Hariani   +3 more
doaj   +1 more source

Studies on Gonad Maturity in Some Marine Invertebrates-II

open access: yesNIPPON SUISAN GAKKAISHI, 1971
The present paper deals with histological observations of the reproductive organs of the lined shore crab, Pachygrapsus crassipes, (Grapsidae, Brachyura), known as a common crab which widely inhabits the rocky beaches of the Japanese Islands. The materials used were collected from the coast of Niigata City, facing the Japan Sea, and the period of ...
Akira CHIBA, Yoshiharu HONMA
openaire   +4 more sources

Differential leucokocyte counts in ''dourado'', Salminus maxillosus Valenciennes, 1840, from the Mogi-Guaçu River, Pirassununga, SP [PDF]

open access: yesBrazilian Journal of Biology, 2003
From August, 1996 to December, 1997, 293 of ''dourado'' specimens, Salminus maxillosus (Valencienes, 1840), of various sizes, were caught in Mogi-Guaçu River, Emas Falls, for hematologic studies.
M. J. T. Ranzani-Paiva   +4 more
doaj   +1 more source

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

Apllication of Ovaprim and Oxytocin Hormone for Gonadal Maturation and Embryogenesis of the Pomfret (Colossoma mropomum)

open access: yes, 2021
The pomfret fish have been widely cultured by fish culturist in Indonesia. However, the gonadal maturation have faced the obstacles with the hormone supplies for the culturists.
Syamsunanrno, Mas Bayu; Universitas Sultan Ageng Tirtayasa   +2 more
core   +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

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