Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 4
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Immunohistochemical Localization of Steroidogenic Enzymes in the Testis of the Sika Deer (Cervus nippon) During Developmental and Seasonal Changes OAK
HAYAKAWA, Daisuke; SASAKI, Motoki; SUZUKI, Masatsugu; TSUBOTA, Toshio; IGOTA, Hiromasa; KAJI, Koichi; KITAMURA, Nobuo; 佐々木, 基樹; 北村, 延夫.
Testicular steroidogenesis and spermatogenesis during developmental and seasonal changes were investigated in male sika deer (Cervus nippon), a short-day seasonal breeder, to clarify the physiological mechanisms for reproductive function. The immunohistochemical localization of steroidogenic enzymes (P450scc, P450c17, 3βHSD and P450arom), spermatogenesis and cell proliferation were analyzed in the testes of fetal (164 to 218 days of fetal age), fawn (0 years old), yearling (1 year old) and adult (more than 2 years old) male sika deer. Three kinds of steroidogenic enzymes, P450scc, P450c17 and 3βHSD, essential for the synthesis of testosterone were located only in the Leydig cells of the testes from the fetal period, and these localizations did not change...
Palavras-chave: Developmental change; Seasonal change; Sika deer; Steroidogenic enzyme; Testis.
Ano: 2010 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2816
Imagem não selecionada

Imprime registro no formato completo
Monthly HPLC measurements of pigment concentration from an intertidal muddy sediment of Marennes-Oléron Bay, France ArchiMer
Cariou-le Gall, Valerie; Blanchard, Gerard.
Chloropigments and carotenoids were measured by HPLC in an intertidal muddy sediment of Marennes-Oleron Bay (France). Concentrations were determined as a function of sediment depth at low tide. The analyses were carried out at monthly intervals over 1 yr. Pigment analysis indicated that the microphytobenthic community was dominated by diatoms throughout the sampling year. Chlorophyll b was not encountered at any time or depth, indicating that no input from macrophytic detritus had occurred at the sampling site. There was a large pool of phaeopigments a, of which phaeophorbides were the major forms (75%). A microphytobenthic bloom occurred between March and June during which phaeopigments significantly increased with a high proportion of phaeophorbides...
Tipo: Text Palavras-chave: Pigment; HPLC; Intertidal mudflat; Microphytobenthos; Seasonal change.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00257/36844/36666.pdf
Imagem não selecionada

Imprime registro no formato completo
Response of benthic organisms to seasonal change of organic matter deposition in the bathyal Sagami Bay, central Japan ArchiMer
Shimanaga, M; Shirayama, Y.
An interdisciplinary research project was carried out to understand seasonal carbon cycling in a deep-sea ecosystem in Sagami Bay, central Japan. Temporal-changes in the chloroplastic pigment (CPE) concentration in the sediment, as well as the abundance, the biomass and the metabolic activity of benthic organisms were studied. CPE was detectable throughout the year, and its amount increased in the spring when a fluffy layer was observed on the surface of the sediment. Significant seasonal fluctuation of bacterial abundance was found, but the range was small, the maximal value being only 1.6 times larger than the minimal one. Metabolic activity did not show significant temporal difference. The abundance and biomass of metazoan meiofauna seemed to fluctuate...
Tipo: Text Palavras-chave: Variation printanière; Abondance méiobenthique; Abondance bactérienne; Activité métabolique; Concentration en pigment chloroplastique; Seasonal change; Meiobenthic abundance; Bacterial abundance; Metabolic activity; Chloroplastic pigment; Concentration.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00325/43580/44048.pdf
Imagem não selecionada

Imprime registro no formato completo
Seasonal changes in serum progesterone levels in Thoroughbred racehorses in training OAK
TAKAHASHI, Yuji; AKAI, Makoto; MURASE, Harutaka; NAMBO, Yasuo.
The objective of the present study was to verify the seasonal luteal activity of racehorses in training in Japan from March to August. We allocated 102 horses into a luteal activity group and non-luteal activity group. The luteal activity group included horses with serum progesterone levels that were consistently >1 ng/ml and changed by ± 1 ng/ml. In contrast, the progesterone levels of the non-luteal activity group were consistently <1 ng/ml. In late spring (from May 1 to June 30) and summer (from July 1 to August 31), the percentage of horses in the luteal activity group was significantly higher than in early spring (from March 1 to April 30, P<0.01). These findings demonstrate clear seasonal variations in ovarian activity. The present study...
Palavras-chave: Racehorse; Progesterone; Seasonal change.
Ano: 2015 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4290
Registros recuperados: 4
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional