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Avaliação da técnica de coloração AgNOR em testículos de ovinos
(Universidade Federal de Minas Gerais, Escola de Veterinária, 2015-04-01)
The silver staining technique for AgNOR nucleolar organizer regions (NORs) is characterized by marking proteins linked to the ribosomal ribonucleic acid, evaluating cell proliferation. The aim was to study the validity of ...
Aspectos da espermatogênese de tucunaré, Cichla ocellaris Schneider, 1801 (TELEOSTEI, CICHLIDAE).
(Instituto Nacional de Pesquisas da Amazônia, 1986)
Sequential cytological events οf Cichla ocellaris spermatogenesis were studied with electron microscopy from the est spermatocyte to the nature spermatozoa. Five stages of sermatid maturation were described.
Testicular Morphohistology of Hypsiboas pulchellus (Amphibia, Hylidae) During the Breeding Season
(Universidad Nacional de Colombia - Sede Bogotá - Faculdad de Ciencias - Departamento de Biología, 2015-01-01)
In this study, data concerning to the morphological testicular features of Hypsiboas pulchel-lus during the breeding season is provided, in order to know aspects of their reproductive biology. The testis, ovoid and yellowish ...
Morphometric study of Rynchotus rufescens testis throughout the year
(Instituto Internacional de Ecologia, 2007-05-01)
O trabalho teve como objetivo estudar a variação morfológica do testículo, visando promover a seleção e o controle genético de exemplares que apresentem produção espermática apreciável ao longo do ano. A morfologia testicular ...
Cambios histomorfológicos en los testes del capitan, eremophilus mutisii (trichomycteridae, siluriformes), durante el ciclo reproductivo anual en el sistema del rio bogotá en colombia
(Caldasia, 1986)
The main purpose of this research is to establish the annual morphohistological changes in the testes of the fish Eremophilus mutisii in the río Bogotá basin in Colombia. Spent testes appear in early May, and the ...
Desenvolvimento das gônadas de Dermatobia hominis (Diptera: Cuterebridae)
(Instituto Oswaldo Cruz, Ministério da Saúde, 1985-06-01)
O trabalho descreve o desenvolvimento das gônadas do berne (D. hominis) durante o período pupal. As pupas desenvolvidas de larvas com peso superior a 650 mg, deram imagos fêmeas, enquanto que as desenvolvidas daquelas ...
Morfología Testicular del Yaque Leiarius marmoratus (Pisces: Siluridae) en Estadio de Madurez Reproductiva
(Sociedad Chilena de Anatomía, 2010)
Morphological aspects of spermatogenic cells at different stages of sexual maturation in black isogenic C57BL/6/Uni mice
(Soc Chilena Anatomia, 2012-01-01)
In order to study the morphological changes that occur in cells of the testes of isogenic black mouse C57BL/6/Uni into three periods during spermatogenetic used 15 mice divided into 3 groups of 5 animals with 40,50 and 60 ...
Análise qualitativa do estabelecimento da espermatogênese em cutias (Dasyprocta aguti) criadas em cativeiros
(Faculdade de Medicina Veterinária e Zootecnia / Universidade de São Paulo, 2003)
The determination of the puberty beginning is widely studied in domestic animals and rodents. However, there are scarce researches with the purpose to establish parameters for the reproductive biology in Agoutis. Thirty-one ...