|
|
|
| Registros recuperados: 246 | |
|
|
| Pascini,TV; Albeny,DS; Ramalho-Ortigão,M; Vilela,EF; Serrão,JE; Martins,GF. |
| Several studies have focused on understanding the biochemistry and morphology of the fat body of the hematophagous mosquito Aedes aegypti (L.) (Diptera: Culicidae). In contrast, few studies, if any, have focused on morphological characters of the fat body in other mosquitoes, especially non-hematophagous taxa such as the culicid Toxorhynchites. Larvae of Toxorhynchites prey upon the larvae of other mosquito species and are used in vector mosquito control. We investigated aspects of the fat body trophocytes, including the morphometric analyses of the lipid droplets, protein granules and nuclei, during Toxorhynchites theobaldi (Dyar & Knab) post-embryonic development. Following the body weight increase from larval stage L2 to L4, the size of lipid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphology; Morphometry; Trophocyte. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000400008 |
| |
|
|
| Poiani,Silvana B.; Cruz-Landim,Carminda da. |
| The bee species of the Apinae, in addition to the thoracic salivary glands, possess a pair of cephalic glands originating as branches of the excretory duct that crosses the head. These glands are known as cephalic salivary or labial cephalic glands. The degree of development of these glands in newly emerged, nurse and forager workers and virgin and egg-laying queens of Apis mellifera Linnaeus, 1758 and Scaptotrigona postica Latreille, 1807 were evaluated by measuring the secretory alveolar units. The area of the secretory alveoli, measured in total gland preparations, was used to evaluate differences in size. In both species, gland size was found to increase progressively from newly emerged workers to foragers and from virgin to egg-laying queens. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bee; Labial gland; Morphometry; Pheromone; Salivary system. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600018 |
| |
|
|
| 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 |
| |
|
| |
|
| |
|
|
| Karakoç,Zelal; Ketani,Sennur; Ketani,M. Aydin; Kilinç,Mehmet. |
| This study aimed to reveal the morphometric differences between blind mole rats which live under ground and rats which live under laboratory conditions with regard to the length, base width, keratinization thickness and microscopic papilla depth. For this purpose, 7 adult blind mole rats and 7 adult Wistar albino rats were used in the study. All tongues were removed and fixed in 10 % neutral formalin. 4-5 micrometer of sections were obtained from paraffine sections which were obtained with routine histological follow ups and Crossman's modified triple staining was applied. While papilla length was found as 184.73±26.68 µm, base width 65.46±16.51 µm, keratinization thickness 11.60±1.37 µm, microscopic papilla depth 49.89±8.19 µm in blind rats; these values... |
| Tipo: Journal article |
Palavras-chave: Blind Mole Rat; Filiform lingual papilla; Morphometry. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200028 |
| |
|
|
| Kavoi,Boniface M; Jameela,Hassanali. |
| Morphometric parameters of olfactory brain components show species-dependent variations. However, the association of these parameters with olfactory function vis-à-vis ecological and evolutionary behaviors is poorly understood. In this study, a morphometric analysis of the olfactory bulb, tract and stria was carried out in three ecologically diverse animals comprising humans (primate), dogs (carnivore) and goats (herbivore) to elucidate differences in morphometry in relation to olfactory function. Using formalin-fixed brains, volumes and linear measurements of the olfactory structures were determined and correlated with those of cerebrum and the whole brain. The volume of the olfactory bulb was greatest in dogs, followed by goats and humans and constituted... |
| Tipo: Journal article |
Palavras-chave: Morphometry; Olfactory brain; Human; Dog; Goat. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300047 |
| |
|
| |
|
| |
|
|
| Albertoni,Edélti Faria; Palma-Silva,Cleber; Esteves,Francisco de Assis. |
| The growth relations of the shrimps Farfantepenaeus brasiliensis (Latreille, 1817) and F. paulensis (Pérez-Farfante, 1967) were evaluated at Imboassica lagoon, Macaé, Rio de Janeiro State, between June 1995 and September 1997, in four periods after events of sandbar opening. This sandbar separated the lagoon from the Atlantic Ocean. Through the evaluation of the weight/length relationships for the two species, significant differences in each interval after the sandbar openings were observed, as much among males and females as among all individuals of the same species. The results indicated that both species presented negative allometric growth in most of the studied occasions. The frequency and abundance of the two species in the lagoon is linked to many... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphometry; Shrimp; Weight/length relationship. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000300008 |
| |
|
|
| Domingues,Manoela de S.; Vicari,Marcelo R.; Abilhoa,Vinícius; Wamser,João P.; Cestari,Marta M.; Bertollo,Luiz A. C.; Almeida,Mara C. de; Artoni,Roberto F.. |
| The recently described fish species, Astyanax altiparanae (tetra) is common in the upper rio Paraná basin, and has been reported in the Iguaçu basin. However, its natural origin in the rio Iguaçu is questionable. In the present work, karyotypical and morphological features of two populations of Astyanax altiparanae from the upper rio Tibagi and upper rio Iguaçu were compared. Both populations showed 2n=50 chromosomes and differences in their karyotype formula, NOR-bearing chromosomes and location of heterochromatin. Morphometric data from both populations were analyzed through free-size canonical variables. Cytogenetic and morphological results were mostly coincident showing exclusive markers that reflect their degree of populational isolation. In addition... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tetra; Karyotype evolution; Distribution; Morphometry. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000100005 |
| |
|
|
| Medrado,Aline Souza; Figueiredo,Alba Vivian Amaral; Waldschmidt,Ana Maria; Affonso,Paulo Roberto Antunes de Mello; Carneiro,Paulo Luiz Souza. |
| In the present work, morphometric and cytogenetic analyses were carried out in populations of the fish Astyanax fasciatus (Characidae) from Contas and Recôncavo Sul River basins (State of Bahia, Brazil), providing new data on the genetic structure of this species along the region. Based on morphologic measurements, we observed that populations from the same hydrographic basin were more similar to each other (Contas and Preto do Costa Rivers), and remarkably divergent from Recôncavo Sul (Mineiro Stream), as indicated by clustering analysis. Cytogenetic data revealed a same diploid number for all populations (2n = 48), but distinct karyotype formulae (8M+24SM+12ST+4A, FN = 92 in Contas River, 8M+24SM+10ST+6A, FN = 90 in Preto do Costa River, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canonic variables; Karyotype; Morphometry; NOR. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000200007 |
| |
|
| |
|
|
| Derisio, C.M.. |
| En el Atlántico Suroccidental, el orden Pleuronectiformes se halla representado por más de 20 especies que se distribuyen principalmente entre los 34° y 47° S. El objetivo de este trabajo fue describir las características morfológicas de los estadios larvalcs de Etropus longimanus y Symphurus trewavasae, y de los juveniles de algunas especies de la familia Paralichthyidae (Paralichthys orbignyanus, P. isosceles, Xystreurys rasile y E. longimanus) y Cynoglossidae (S. jenynsi y S. trewavasae) presentes en el Mar Argentino, aportando herramientas diagnósticas que permitan diferenciar las especies de juveniles entre sí y los diferentes estadios larvales en una mIsma espeCIe.Los ejemplares estudiados provInieron de campañas de investigación desarrol1ádas por el... |
| Tipo: Theses and Dissertations |
Palavras-chave: Meristic counts; Morphometry; Animal morphology; Animal morphology; Http://aims.fao.org/aos/agrovoc/c_421. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/3868 |
| |
|
|
| Brunetti, N.E.; Ivanovic, M.L.. |
| A description of Illex argentinus beaks, made on the basis of qualitative and quantitative characteristics, is presented. Likewise the equations that represent the relationships between the rostral length of each beak with the mantle length and total weight of squids are proposed, as a tool for reconstructing them. A total of 291 squids, comprising the complete size range, from juveniles to adults,were analyzed for the latter purpose. The morphometric description was made on a total of 90 individuals from the Argentine Sea, taking the following measurements on each beak: rostral length, hood length,crest length, wing length and wing width. Results showed that Illex argentinus beaks present the general scheme of that corresponding to the Ommastrephidae... |
| Tipo: Journal Contribution |
Palavras-chave: Animal morphology; Morphometry; Squid culture; Animal morphology; Http://aims.fao.org/aos/agrovoc/c_421. |
| Ano: 1997 |
URL: http://hdl.handle.net/1834/1926 |
| |
|
|
| Richardi,Vinicius S.; Rebechi,Débora; Aranha,José M. R.; Navarro-Silva,Mário A.. |
| Determining the age composition of a population is important when conducting ecological, taxonomic and environmental assessments. Morphometric measurements of the head capsule, especially the length and width, are widely used in the identification of insect instars, but alternative ways for determining the age of insects can expand the options for the analysis of field and laboratory populations. This study evaluated the morphometry of the antennae, mandibles, mentum and ventromental plates to discriminate among the four larval instars of Chironomus sancticaroli Strixino & Strixino, 1981. The larvae were reared in the laboratory under constant temperature (25°C) and photoperiod of 12/12 hours for 19 days, with a supply of food. Fifteen larvae were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth rate; Head capsule; Instars; Morphometry. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000200011 |
| |
|
|
| 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 |
| |
|
|
| Gava,MS; Moraes,LB; Carvalho,D; Chitolina,GZ; Fallavena,LCB; Moraes,HLS; Herpich,J; Salle,CTP. |
| Brazilian poultry production is very efficient and demands maximum broiler performance. Therefore, digestive system pathologies have a relevant role. Considering it is difficult to obtain consistent information on intestinal morphometric analysis, this study aimed at establishing essential and clear criteria for the collection of intestinal segments for morphometric analysis. Fifteen 13-d-old broilers were sacrificed and three intestinal segments were collected per bird. Two 3-cm long sections were obtained from each of the intestinal segments. Samples were collected open or closed. The closed samples were transversely, hemicylindrically, or longitudinally sectioned. Samples were processed and stained with hematoxylin and eosin. The number of microscopic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Image; Intestine; Morphometry; Poultry; Villus. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200145 |
| |
|
| |
|
|
| FONSECA-PÉREZ,KIMBERLYN A.; MOLINA,CÉSAR; TÁRANO,ZAIDA. |
| ABSTRACT The coexistence of species with similar ecological requirements (food, space, time) has typically drawn attention of researchers because competition for resources is expected to be high. The diet and microhabitat occupation of two morphologically and ecologically similar species of Hylidae (Anura), Dendropsophus microcephalus and Scarthyla vigilans, were analyzed at a locality in north-western Venezuela, with the aim of addressing the potential for space and food competition between them. Diet was estimated through the analysis of stomach contents and microhabitat occupation was estimated through recordings of perch type, height and horizontal distance to water. Thirty-six prey categories (32 families, 4 orders) of arthropods were identified: 30... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Generalist; Niche overlap; Resource partitioning; Microhabitat; Morphometry. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492017000700093 |
| |
| Registros recuperados: 246 | |
|
|
|
