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| Registros recuperados: 246 | |
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| Melo, Carlos Cicinato Vieira; Universidade Federal de Lavras; Reis Neto, Rafael Vilhena; Universidade Federal de Lavras; Costa, Adriano Carvalho; Universidade Federal de Lavras; Freitas, Rilke Tadeu Fonseca de; Universidade Federal de Lavras; Freato, Thiago Archangelo; Empresa de Pesquisa Agropecuária de Minas Gerais; Souza, Ulisses Nascimento de; Universidade Federal de Lavras. |
| The study was carried out with the objective of verifying which measures and morphometric ratios are more directly related to the body yield of Nile tilapia, Oreochromis niloticus, in two weight classes. Data were analyzed from 257 specimens of tilapia divided into two weight classes: p1 = 400 to 599 g and p2 = 600 to 900 g. The morphometric measurements standard length (SL), head length (HL), body height (BH) and body width (BW), and the ratios of these measures (HL / SL, BH / SL, BW / SL, HL / BH, BW / BH, BW / HL) were evaluated. The following body yields were calculated: carcass (RCAR), fillet (RFILE) and head (RCAB). The data were initially submitted to the "stepwise" procedure to eliminate problems of multicollinearity among the morphometric... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Path analysis; Evaluation of carcass; Animal breeding; Morphometry; Oreochromis niloticus. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/19807 |
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| Leite, João Ricardo Avelar; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Guimarães, Adriano de Souza; Rigueira, João Paulo Sampaio; Gomes, Virgílio Mesquita. |
| This study aimed to evaluate the structural, productive and nutritional characteristics of cactus pear (Nopalea cochenillifera Salm Dyck. cv. Miúda/Doce) under five nitrogen doses and two planting orientations. A randomized block design in a 5 x 2 factorial scheme was used in the scheme: five nitrogen doses (0, 150, 300, 450 and 600 kg of N ha-1), and two planting orientations (North/South and East/West), with three replicates. Except for the thickness of the secondary (p = 0.04) and tertiary cladodes (p = 0.02), the morphometric characteristics of the cactus pear were not influenced by the nitrogen doses (p > 0.05). The mean height was 120 cm, the areas of the primary, secondary and tertiary cladodium were 160.9; 208 and 158.4 cm², respectively. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens biomass; Management; Morphometry; Semiarid; Viability.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/38325 |
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| Oliveira, Jessica Santana de; Silva, Alluanan Adelson do Nascimento; Magalhães, Carolina Peixoto; Souza, Sandra Lopes de; Silva Junior, Valdemiro Amaro da; Melo, Elizabeth Neves de. |
| Current study investigates the effects of maternal protein restriction during pregnancy and lactation on the testis of immature rats. Female Wistar rats were mated and, after confirming pregnancy, they were divided into two groups: undernourished group (UG) fed on a diet with casein 8%, and control group (CG) fed on a diet with casein 17 %, during pregnancy and lactation. After weaning, male offspring from the two experimental groups were fed on normal diet up to 35 days old when they were euthanized. Body and testicular weights decreased in UG when compared to those in CG. Volumetric density of seminiferous tubules was higher in CG whilst intertubular space increased in UG. The number of lumenated seminiferous tubules was higher in CG than in UG. Tubular... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.06.00.00-3 testes; Seminiferous tubules; Morphometry; Undernutrition Morfologia. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/21929 |
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| Carvalho, Elianora Gomes de; UFT; Seibert, Carla Simone; UFT; Coelho, Michella Soares; USP; Marques, Elineide Eugênio; UFT. |
| Neste estudo, foram avaliadas as características hematológicas e a morfometria de Auchenipterus nuchalis, Psectrogaster amazônica e Squaliforma emarginata, capturados no rio Tocantins. As amostragens foram realizadas no rio Tocantins, onde o sangue foi coletado por punção caudal dos animais, determinando-se hemograma completo e morfometria dos eritrócitos. Auchenipterus nuchalis (n = 15) apresentou maior número de eritrócitos, hemoglobina e hematócrito, seguido de P. amazônica (n = 26) e S. emarginata (n = 26). O tamanho dos eritrócitos foi maior para S. emarginata, mostrando que quanto maior o tamanho dos eritrócitos, menor o número de células circulantes. Squaliforma emarginata também apresentou maior número de blastos (eritrócitos ortocromáticos e... |
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Palavras-chave: 2.00.00.00-6 Ciências Biológicas peixes; Hematologia; Eritrócitos; Morfometria; Leucócitos; Rio Tocantins Fisiologia Comparada fish; Hematology; Erythrocyte; Morphometry; Leucocytes; Tocantins river. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1024 |
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| Macedo, Lucas Chagastelles Pinto de; Dornelles, Sylvio Henrique Bidel; Peripolli, Mariane; Trivisiol, Vinicius Severo; Conceição, Danúbia Quadros da; Pivetta, Maicon; Escobar, Otávio dos Santos; Essi, Liliana. |
| The genetic variability and genetic versatility of plants belonging to Poaceae provide morphophysiological responses that allow these individuals to adapt to environmental changes, especially in relation to soil moisture. Urochloa plantaginea and U. platyphylla are grasses typical of dry environment, also found as weeds in rice fields, where there are high amounts of water in the soil. The objective of this work is to analyze the development of these two species in different environments, subjecting them to three different amounts of water in the soil. Morphological parameters were analyzed in order to verify and quantify which suffered alteration with respect to water variation. Caryopsis of the two species were collected in a commercial irrigated rice... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphometry; Poaceae; Weeds.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/46127 |
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| OLIVEIRA,FABRÍCIO S.; MACITELLI,FERNANDA; SANTOS,CAIO C.C.; BRAGA,JANAINA S.; COSTA,BARBARA C.; PASTORE,MARINA; ROCHA,THIAGO A.S.S.; COSTA,MATEUS J.R.P. DA. |
| Abstract Chronic stress exposure commonly increases adrenals weight and changes their morphology. This study aimed to compare four methods to delimitate the cortical and medullary layers of adrenals glands in Nelore bulls. Fresh adrenals did not present differentiation between layers. Then, frozen adrenals were distributed in plastics bags with fixative Bouin (G1), 96ºGL ethylic alcohol (G2), 10% formaldehyde (G3), or 2.5% glutaraldehyde (G4). After 12 hours of fixation, the G1 adrenal glands did not show the entire cortical layer marked by Bouin’s solution. For G2 and G3 there was a poor contrast, while for G4 there was a reasonable contrast. After 24 hours of fixation, G1 had an excellent contrast between layers, while G2 and G4 had a reasonable contrast... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal welfare; Morphometry; Stress; Anatomy; Gland. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703887 |
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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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| 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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| Lima,Dirlene P.; Azevedo,Jorge F. de; Hermes-Uliana,Catchia; Alves,Gilberto; Sant'ana,Débora M.G.; Araújo,Eduardo J.A.. |
| The objective of this study was to analyze morphometrically the colon wall strata of malnourished rats supplemented with probiotics. Sixteen recently weaned Wistar rats (Rattus norvegicus) were distributed into four groups: animals that received commercial chow (G1, n = 4); animals that received the same feed as G1 and were supplemented with probiotics (G2, n = 4); animals that received chow with 4% of proteins (G3, n = 4); animals that received the same feed as G3 and were supplemented with probiotics (G4, n = 4). After 12 weeks, the proximal colon was collected and submitted to histological processing. Three-µm cuts were stained with H.E., Periodic Acid Schifff (P.A.S.) + diasthasis solution and Alcian Blue (A.B.) pH 2.5 and pH 1.0. The morphometric... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Histology; Large intestine; Malnourishment; Morphometry; Probiotics. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000300015 |
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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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| Registros recuperados: 246 | |
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