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| Registros recuperados: 246 | |
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| CARVALHO,CÁSSIA DE; KEUNECKE,KARINA A.; LAVRADO,HELENA P.. |
| Abstract:Farfantepenaeus brasiliensis and F. paulensis are the most exploited shrimps of SE-S Brazilian coast. Our aim was to verify if adjacent nursery areas with different environmental condition (Sepetiba and Guanabara bays, SE Brazil) influence on shrimp populations (eg, CPUE) and body shapes. Samplings were carried out during 12 months in those bays ca. 85 Km far from each other. Carapace length (CL), total body length (TL), wet weight, abdomen size and TL/CL ratio were used to analyze variations in shape through regressions. In general, F. brasiliensis was 4 to 6 times more abundant than F. paulensis. The sex ratio differed from 1:1 in F. brasiliensis in both bays, with dominance of females, largest catches occur in autumn. However, differences in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Farfantepenaeus brasiliensis; Farfantepenaeus paulensis; Guanabara Bay; Morphometry; Pink shrimps; Sepetiba Bay. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300601 |
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| AZEVEDO,JORGE F. DE; HERMES-ULIANA,CATCHIA; LIMA,DIRLENE P.; SANT'ANA,DÉBORA M.G.; ALVES,GILBERTO; ARAÚJO,EDUARDO J.A.. |
| This study sought to morphometrically analyze the jejunal wall of protein-malnourished rats administered a probiotic supplement. The sample consisted of recently weaned Wistar rats (Rattus norvegicus) distributed among four groups: animals given a commercial diet (G1, n = 4); animals given the same ration as G1 plus a probiotic supplement (G2, n = 4); animals given a 4% protein diet (G3, n = 4); and animals given the same ration as G3 plus a probiotic supplement (G4, n = 4). After 12 weeks, part of the jejunum was harvested and subjected to routine histological processing. Transverse sections with a thickness of 3 µm were stained with HE, and histochemical techniques were used to assay for glycoconjugates, including staining with periodic acid-Schiff (PAS)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bowel; Digestive system; Histology; Morphometry; Protein-energy malnutrition; Small intestine. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301303 |
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| Xavier-Vidal,Ricardo. |
| The purpose of this work is to calibrate a not expensive microscope to be applied in Optical Disector estimation. The evaluation of "Z-axis" bias and the "Z-axis" calibration were made utilizing a cover slip and a "manual digimatic outside micrometer scale" (Mitutoyo, Japan). Calibrating the cover slip we performed the calibration of the "Z-axis" of a microscope. In the cover slip two lines were painted with different colors using a pen glass. A blue line was painted on the up surface and another line (red) on the bottom surface of the cover slip forming a cross. Two metal rings with one palette welded in each were adapted in the microscope. Other palette was welded in the gross focuses in order to restrict the route of the fine focuses (Z-axis study)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stereology; Disector; Optical disector; Morphometry; Z-axis. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000200028 |
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| Mandarim-de-Lacerda,Carlos A.. |
| Stereological studies are more and more frequent in literature, particularly in the development/evolution, pathology, and neurosciences areas. The stereology challenge is to understand the structural inner threedimensional arrangement based on the analysis of the structure slices only showing two-dimensional information. Cavalieri and Scherle's methods to estimate volume, and Buffon's needle problem, are commented in the stereological context. A group of actions is needed to appropriately quantify morphological structures (unbiased and reproducibly), e.g. sampling, isotropic and uniform randomly sections (Delesse's principle), and updated stereological tools (disector, fractionator, nucleator, etc). Through the correct stereology use, a quantitative study... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphometry; Stereology; Volume density; Surface density; Length density; Disector; Fractionator. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000400006 |
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| Moro,L.; Vasconcelos,A.C.; Santos,F.G.A.; Alves,C.M.; Nunes,J.E.S.; Sampaio,I.B.M.. |
| Determinou-se o número mínimo de campos por lâmina para se ter uma amostragem representativa para o estudo de apoptose em linfonodos de cães com cinomose. Um linfonodo traqueobrônquico de cão foi colhido e processado segundo técnica para inclusão em parafina. Secções de 5µm foram coradas pelo tricrômico de Shorr. Utilizou-se um analisador de imagens para registrar o número de células em apoptose e os índices apoptóticos de 300 campos, na mesma lâmina. Obtiveram-se, então, valores médios para 10 amostras de 5, 10, 15, 20, 25, 30, 35, 40, 45 e 50 campos ao acaso. Realizou-se o estudo dos desvios-padrão das médias (DP) em relação ao tamanho da amostra que os originou. Quando as oscilações de DP entre amostras consecutivas foram menores que 5%, o ganho em... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Dog; Apoptosis; Morphometry; Lymph node; Sampling. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352004000300020 |
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| Costa,D.S.; Paula,T.A.R.. |
| The testosterone levels with nasal gland volume and Leydig cell morphometry in sexually mature capybaras were compared using 10 adult capybaras, aging 28 months. Body and testicular weight were 50kg and 28g, respectively. The gonadosomatic index was 0.11±0.02%, while nasal gland volume was 34.12±13.04ml. Serum testosterone concentration was 25.07±14.73ng/ml. Leydig cell volume density and leydigosomatic index were, respectively, 28.8±8.3% and 0.030±0.007%. Total and individual Leydig cell volumes were 6.88±1.92ml and 2,228.14±272.59x10-12ml, respectively. Leydig cell numbers per testis and per gram of testis were, respectively, 3,079.4±719.9x10(6) and 115.09±31.78x10(6) cells. These results show that increase in serum testosterone concentration is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Capybara; Testosterone; Morphometry; Leydig cells; Nasal gland. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000600017 |
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| Riccillo,F.L.; Bracamonte,M.I.; Cónsole,G.M.; Gómez Dumm,C.L.A.. |
| Although the endocrine pancreas is the purpose of several deep investigations, morphological data referred to the effect of aging on the gland are not homogeneous. The purpose of the current work was to analyze the changes occurring in the pancreas of aged rats, with especial reference to the islet cell populations. Six young (Y), old (O) and senescent (S) male Sprague-Dawley rats were used. The pancreas tails were processed for light microscopy and studied by means of routine stains as well as by immunohistochemical identification of insulin-, glucagon-, somatostatin-, and pancreatic polypeptide- secreting cells (Dako Envision System, DAB as chromogen). A progressive pancreatic histoarchitecture distortion was found among the aged animals. Even when the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aging; Pancreas; Islets; Immunohistochemistry; Morphometry. |
| Ano: 2004 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452004000200001 |
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| Tsakmakidis,Ioannis A; Khalifa,Tarek AA; Boscos,Costas M. |
| The aim of this study was to investigate the effect of boar age on quality traits and fertility of liquid-stored semen. Boars were allocated into 3 age groups: 7-10 months (young), 18-33 months (mature), 51-61 months (old). Ejaculates of > 200x10(6) sperm/ml and 85% total motile sperm were extended to 30x10(6) sperm/ml, stored at 17-18 °C and used within 12-24 h for artificial insemination (AI) of 2062 multiparous sows. After 24 h of storage, aliquots of diluted semen were assessed for sperm progressive motility (SPM), incidence of sperm chromatin instability (SCI), proportion of live morphologically normal sperm (LMNS) and head morphometry of LMNS. The results showed that young boars had higher percentages of SCI and lower proportions of LMNS than... |
| Tipo: Journal article |
Palavras-chave: Boar age; Boar semen; Morphology; Morphometry; Sperm chromatin. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000400009 |
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| Viana,Diego Carvalho; Rui,Leandro Almeida; Santos,Amilton Cesar dos; Miglino,Maria Angélica; Assis Neto,Antônio Chaves de; Araujo,Lianne Polliane Fernandes; Oliveira,Antonia Santos; Sousa,Alana Lislea. |
| This study aimed to characterize the morphology of the vas deferens ofKinosteron scorpioides by macroscopic and microscopic analysis. Were used 20 adult male jurarás collected at regular intervals during the year and divided into four experimental groups in the rainy and dry seasons, being processed for light microscopy, scanning electron microscopy and transmission electron microscopy. Morphometry for tubular and luminal diameters and epithelial height were also performed. On rainy season, vas deferens presented pseudostratified epithelium with cylindrical cells, spermatozoids and milky fluid in the lumen, with cytoplasmic organelles and lipid vesicles. On dry season, epithelium was pseudostratified with cuboid cells, with cellular debris and no... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Kinosternon; Reproduction; Vas deferens; Morphometry; Ultrastructural. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000300114 |
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| Freitas,Karine Moura de; Costa,Kyvia Lugate; Campos,Pamela Kelly Araújo; Melo,Fabiana Cristina Silveira Alves de; Paula,Tarcízio Antônio Rego de; Matta,Sérgio Luis Pinto da. |
| The aim of this study was to evaluate the possible beneficial effects of Catuaba Cristal® (CC), an alcoholic drink made from wine and Erythroxylum catuaba Ar. Cam on testis. Wistar rats either received CC solution (n=8) or water (n=9). Results showed significant body weight reduction within the CC group, although, no weight changes were observed for liver, kidney, testis, epididymis, seminal vesicle and prostate. The volumetric proportion and volume of interstitial tissue and lymphatic space were reduced in the treated group. In the CC group, although the nuclear volume of Leydig cells (LC) decreased, the number of LC per testis increased. These results suggested that CC had no beneficial effect on spermatogenesis of Wistar rats. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aphrodisiac drink; Medicinal plants; Morphometry; Spermatogenesis; Testis. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000500007 |
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| Registros recuperados: 246 | |
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