Results 11 to 20 of about 1,101 (126)

Gametogenesis in Madracis decactis Lyman, 1859 (Cnidaria, Scleractinia) from Ilha Grande Bay (Rio de Janeiro), southeastern Brazil [PDF]

open access: yesBrazilian Journal of Oceanography, 2008
Collections were made every two months in Ilha Grande Bay, Rio de Janeiro, for 21 months (August/2004-May/2006) to study the gametogenesis of Madracis decactis Lyman, 1859.
Daniela Muramatsu   +1 more
doaj   +5 more sources

Relationship between polymorphism of growth hormone and precocity traits in Nellore heifers [PDF]

open access: yes, 2011
Avaliaram-se as relações entre o polimorfismo do gene do hormônio do crescimento (GH) e as características de precocidade, em novilhas da raça Nelore.
ANDREA, M.V   +5 more
core   +3 more sources

Données bibliographiques sur l'élevage des jeunes stades et la biologie des corégones

open access: yesKnowledge and Management of Aquatic Ecosystems, 1984
Une revue sommaire de la bibliographie portant sur quelques aspects de la biologie et de l'élevage du corégone fait l'objet de cet article Les problèmes de systématique sont brièvement exposés.
MACK A., BILLARD R.
doaj   +1 more source

Visão geral sobre reprodução de peixes teleósteos: da anatomia à sinalização molecular

open access: yesPubvet, 2017
Um dos principais objetivos da na reprodução e peixes é a produção de um grande número de gametas viáveis e alta sobrevivência da prole. Nos últimos anos, foram realizados importantes progressos na melhoria da eficiência na produção de gametas e ...
Cristielle Nunes Souto   +5 more
doaj   +1 more source

Le contrôle de la reproduction chez les poissons.

open access: yesKnowledge and Management of Aquatic Ecosystems, 1979
Lorsque la maturation sexuelle s'accompagne d'une baisse de la rentabilité économique, l'application de méthodes visant à retarder ou à inhiber définitivement la gamétogenèse peut constituer une solution intéressante : — La production d'animaux à ...
CHEVASSUS B., BLANC J. M., CHOURROUT D.
doaj   +1 more source

Taux d'alimentation pendant la gamétogenèse et performance de reproduction chez la truite fario

open access: yesKnowledge and Management of Aquatic Ecosystems, 1980
Des truites fario (Salmo trutta fario) mâles et femelles ont été soumises entre mars et septembre à des régimes alimentaires à base de granulés, à des taux quotidiens de 0,4.
BILLARD R., DE FREMONT M.
doaj   +1 more source

Reproductive Output and Seasonality of Limnoperna fortunei [PDF]

open access: yes, 2015
Fil: Boltovskoy, Demetrio. Instituto de Ecología. Genética y Evolución de Buenos Aires (IEGEBA). Universidad de Buenos Aires; ArgentinaFil: Morton, Brian. School of Biological Sciences. University of Hong Kong; ChinaFil: Correa, Nancy.
Boltovskoy, Demetrio   +6 more
core   +1 more source

Reproductive biology of Echinometra lucunter (Echinodermata: Echinoidea) in a northeast Brazilian sandstone reef

open access: yesAnais da Academia Brasileira de Ciências, 2009
The edible sea urchin Echinometra lucunter (Linnaeus, 1758) is a very common species on the sublittoral-midlittoral in Brazilian rocky shores. The aim of this work was to describe the gametogenesis and reproductive strategy of the E.
Eduardo J.B. Lima   +2 more
doaj   +1 more source

Meiotic behavior of economically important plant species: the relationship between fertility and male sterility

open access: yesGenetics and Molecular Biology, 2000
Meiosis is an event of high evolutionary stability which culminates in a reduction of chromosome number. The normal and harmonious course of meiosis ensures gamete viability. The cytologic events of gametogenesis are controlled by a large number of genes
Maria Suely Pagliarini
doaj   +1 more source

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