Histologia, histoquímica e histometria do intestino de jacaré-do-Pantanal criado em cativeiro

Aleixo, Victor Manuel; Pressinoti, Leandro N.; Campos, Dérick V.S.; Menezes-Aleixo, Raoni de C.; Ferraz, Rosa Helena dos Santos

doi:10.1590/s0100-736x2011001200014

Cited by 9 publications

(6 citation statements)

References 7 publications

(35 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The absence of villi in the colon of G. microtarus agrees with that described in D. aurita (Santos et al, 2013). Illanes et al (2006) in ostrich and Aleixo et al (2011) in the Pantanal's alligator observed the presence of folds or villi in the large intestine. This characteristic was not observed in the present study.…”

Section: Discussionsupporting

confidence: 88%

“…The digitiform villi have also been described by Banks (1992) in the small intestine of horses and by Ribeiro et al (2011) in the small intestine of D. aurita. Aleixo et al (2011) observed bifurcate and irregular villi in the Pantanal's alligator. The myenteric ganglia were also observed in the muscular layer, between the external longitudinal and internal circular portions in the present study.…”

Section: Discussionmentioning

confidence: 96%

See 1 more Smart Citation

Tissue analysis of Brazilian gracile opossum digestory tube (Gracilinanus microtarsus Wagner, 1842) (Marsupialia: Didelphidae)

Lobo¹,

Santos²,

Rosa³

et al. 2018

Braz. J. Biol. Sci.

View full text Add to dashboard Cite

The alimentary habit reflects in the morphology of digestive organs. In this sense, microscopic studies are useful to analyze the tissue composition of each organ and allow greater comparisons with other marsupials described in the literature. For this reason, the aim of this study was realize a microscopic description of the digestive tube in Gracilinanus microtarsus Wagner, 1842 (Marsupialia: Didelphidae). Six adults specimens were used (3 males and 3 females). Samples from organs of digestive tube were fixed in 10% folmaldehyde solution. The samples were dehydrated in increasing concentrations of ethanol (70%-100%), diaphanized in xylol, paraffin-embedded, cut into a microtome and stained by H. E., Picrossirius, Schiff periodic acid, Toluidine Blue and Masson’s Trichrome. The material was analyzed and photographed through a Nikon Eclipse E-400 Photomicroscope. This study demonstrated, for the first time, the histological constitution of the digestive tube of G. microtarsus. It has been demonstrated that the digestive tube is formed by the esophagus, stomach, small intestine (duodenum, jejunum and ileum) and large intestine (cecum, colon and rectum). These organs were constituted by five distinct layers, a serosa coating externally the organ, a muscular, a submucosa, a muscular of the mucosa, and a mucosa with epithelium that varied between squamous keratinized in the esophagus to prismatic-type in the other organs. This study demonstrated that the digestive tube of animals studied is similar to that described in other marsupials Didelphidae described in the literature with the same food habit. Future immunohistochemical studies may demonstrate the enzymatic complex involved in digestion and the cellular and molecular mechanisms involved in the uptake of nutrients by the digestive tube in this species.

show abstract

Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 96%

Tissue analysis of Brazilian gracile opossum digestory tube (Gracilinanus microtarsus Wagner, 1842) (Marsupialia: Didelphidae)

Lobo¹,

Santos²,

Rosa³

et al. 2018

Braz. J. Biol. Sci.

View full text Add to dashboard Cite

show abstract

“…The cranial portion of the intestine, regarding the small intestine, showed numerous high, filiform and branched villi. In the mucosa, there was simple columnar epithelium formed by numerous goblet cells, structures similar to those found in green turtles (Magalhães et al., ) and different from those found in marsh alligators raised in captivity (Aleixo et al., ), which had finger‐shaped villi. Below that was found the lamina propria of the mucosa, which was thick and had secretory units formed by cuboidal cells; the muscularis mucosae and submucosa were not very visible, and the muscular layer had inner circular and outer longitudinal extracts, similar to that of young ostriches (Monteiro et al., ) (Fig.…”

Section: Resultsmentioning

confidence: 68%

Morphological Analysis of the Tongue and the Digestive Tube of Saffron Finch (Sicalis flaveola brasiliensis,LINNAUES 1766) Apprehended by CETAS/IBAMA-PB

Siqueira

Luna

Cavalcanti

et al. 2013

Anat. Histol. Embryol.

View full text Add to dashboard Cite

The saffron finch (Sicalis flaveola brasiliensis) is a Passeriforme of the Brazilian wildlife. There are scarcely any morphological studies on it, although it is frequently trafficked for its birdsong abilities. Its peculiarities, such as territorialism and developed syrinx that provides outstanding song, draw attention towards its domestication. Thus, this study aimed to morphologically describe the tongue and digestive tube organs of this species to furnish subsidies for nutritional, clinical and conservation studies. Forty-one birds from the Wild Animal Screening Center (CETAS)/Brazilian Institute of Environment (IBAMA)/city of Cabedelo, state of Paraíba (PB) were used. Samples were collected, identified and sent to standard light microscopy; samples of proventriculus and gizzard were sent to Scanning Electron Microscopy (SEM). The samples showed stratification similar to that of other domestic and wild birds, confirmed in the scanning electron microscopy; however, they differed in the absence of dermal papillae in the tongue, lack of ingluvial glands and lack of muscular mucosa and sub-mucosa in the large intestine.

show abstract

“…Following, the material obtained was fixed in Bouin solution (75 % saturated picric acid solution, 25% formaldehyde and 5% glacial acetic acid) for a period of 24 hours (Eigenheer- Moreira et al 2007, Moraes et al 2007, Aleixo et al 2011. Then, the samples were dehydrated with increasing concentrations of ethanol, cleared in xylene and included in paraffin (Drummond et al 2004).…”

Section: Histological Preparationmentioning

confidence: 99%

Morphological and morphometric evaluation of prepubertal gilt ovaries, uterine tubes and uterus at different oestrus cycle stages

Oberlender

Pontelo

Miranda³

et al. 2014

Pesq. Vet. Bras.

View full text Add to dashboard Cite

ABSTRACT.-Oberlender G., Pontelo T.P., Miranda J.R., Miranda D.R., Zangeronimo M.G., Silva A.C., Menezes T.A. & Rocha L.G.P. 2014. Morphological and morphometric evaluation of prepubertal gilt ovaries, uterine tubes and uterus at different oestrus cycle stages. Pesquisa Veterinária Brasileira 34(1):83-90. Setor de Fisiologia e Farmacologia Veterinárias, Departamento de Medicina Veterinária, Universidade Federal de Lavras, Campus Universitário s/n, Caixa Postal 3037, Lavras, MG 37200-000, Brazil. E-mail: zangeronimo@dmv.ufa.br Studies are performed in developing techniques/procedures that provide greater reproductive performance in farm animals, including pigs. In this sense, the study of gilts reproductive organs at different oestrus cycle stages for assessing the presence of abnormalities and/or other parameters that may affect the future animal fertility is important. In order to evaluate the morphological, morphometric and histomorphometric features of ovaries, uterus and uterine tubes (UTs) characteristics of prepubertal gilts at different oestrus cycle stages, reproductive tracts from 48 animals immediately after slaughter were obtained. After, the structures were dissected and removed, and the ovaries were used for classification of oestrus cycle stage of each gilt in follicular phase (FP) and luteal phase (FL). Then, morphometric evaluations of ovaries, UTs, uterine horns and uterine body were performed. Besides that, medial segments of UTs and uterus were fixed in Bouin solution, processed and included in paraffin, when histological sections of 5.0 micrometers (µm) were obtained and stained with Hematoxylin and Eosin. Histomorphometric analyzes using image capture system and specific software were performed. Afterwards, data were submitted to Student's t test for assessment the statistical differences (P<0.05) between the two different oestrus cycle stages (FP × LP) and between the placement of reproductive structures (right × left antimer). Among the gilts evaluated, 35 were in the FP and 13 in LP. There was no difference (P>0.05) between morphometric parameters of ovaries, UTs and uterus of gilts in FP and LP. Likewise, in respect to the placement of reproductive structures, both in the oestrus cycle stages, as in the general average, there was no difference (P>0.05). Regarding the histomorphometric variables, gilts classified in FP presented a higher (P<0.05) height of glandular and UT epithelium compared to animals in LP. On the other hand, the diameter of endometrial glands was higher (P<0.05) in gilts at LP compared to FP. Furthermore, gilts in LP presented a higher (P<0.05) proportion of endometrium occupied by glands, whereas animals in FP had a higher (P<0.05) proportion of connective tissue and blood vessels. In conclusion, in prepubertal gilts, the histomorphometric parameters as endometrial glands diameter, the height of glandular epithelium and of UT epithelium and the proportion of 1 Received on February 7, 2013.Accepted for publication on January 9, 2014.

show abstract

Histologia, histoquímica e histometria do intestino de jacaré-do-Pantanal criado em cativeiro

Cited by 9 publications

References 7 publications

Tissue analysis of Brazilian gracile opossum digestory tube (Gracilinanus microtarsus Wagner, 1842) (Marsupialia: Didelphidae)

Tissue analysis of Brazilian gracile opossum digestory tube (Gracilinanus microtarsus Wagner, 1842) (Marsupialia: Didelphidae)

Morphological Analysis of the Tongue and the Digestive Tube of Saffron Finch (Sicalis flaveola brasiliensis,LINNAUES 1766) Apprehended by CETAS/IBAMA-PB

Morphological and morphometric evaluation of prepubertal gilt ovaries, uterine tubes and uterus at different oestrus cycle stages

Contact Info

Product

Resources

About