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| Registros recuperados: 20 | |
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| PEREIRA,JOICE N.B.; MARI,RENATA B.; STABILLE,SANDRA R.; FARIA,HAROLDO G. DE; MOTA,THAIS F.M.; FERREIRA,WALTER M.. |
| Aging is a biologic process characterized by progressive damage of structures and functions of organic systems. In gastrointestinal tract, it can involve enteric nervous system, which plays an important role in digestion and absorption of nutrients, causing hastening of intestinal transit thus reducing its absorptive function. Caloric restriction has been used in several studies with the intention of delaying deleterious effects of aging. This study aimed to evaluate the effects of caloric restriction on myenteric neurons of ileum by aging in rats. 30 Wistar rats were grouped as follows: GI (animals aged 6 months fed with normal diet), GII (animals aged 18 months fed with normal diet) and GIII (animals aged 18 months subject to 31% of caloric restriction).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aging; Caloric restriction; Myenteric plexus; Small intestine. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301471 |
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| Lima, Vanessa Morais; Universidade Federal de Goiás; Rezende, Ana Lúcia Souza; Universidade Federal de Goiás; Ferreira, Jussara Rocha; Universidade de Brasilía; Pereira, Kleber Fernando; Universidade Federal de Goiás. |
| The mesenteric artery is a high caliber vessel dependent on the abdominal artery, right below the emergence of the vessels destined for the liver and stomach. The present study aimed to describe the behavior of the arterial vessel in the small intestine of the crab-eating raccoon (Procyon cancrivorus). The animals were collected on highways (roadkill). Cannulation of the abdominal aorta, perfusion with warmed water (40°C) and stained latex injection (Neoprene 450, Dupont do Brasil and Sulvinil stain, Glassuret S.A) were performed, followed by formaldehyde fixation (10%). The dissection and photographic documents (Sony Cyber-shot, 8.1 megapixels) made it possible to systemize the arteries and define the vascular patterns of the viscera. It was... |
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Palavras-chave: 2.06.04.02-5 Anatomia Animal Procyon cancrivorus; Small intestine; Cranial mesenteric artery Anatomia Animal Macroscópica Procyon cancrivorus; Small intestine; Cranial mesenteric artery. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/5839 |
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| Maiorka,A; Silva,AVF; Santin,E; Bruno,LDG; Boleli,IC; Macari,M. |
| ABSTRACT This study investigated the effect of broiler breeder age on the morphological development of the small intestine broiler embryos (villus height, crypt depth, microvillus height, and villus density) at 20 day of incubation. Eggs obtained from 30- and 60-wk-old broiler breeders were used. The results showed that embryos from older broiler breeders presented longer villi in the duodenum, jejunum, and ileum compared with younger broiler breeders. In addition, embryos from older broiler breeders presented deeper crypts in the jejunum and ileum, longer microvilli in jejunal enterocytes, and lower villus density (microvillus number/mm2) in the duodenum and ileum than younger breeders. These results suggest that breeder age influences the gut mucosa... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler breeder age; Embryo; Microvillus; Small intestine; Villus. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000600079 |
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| Wawrzyniak,A; Kapica,M; Stępień-Pyśniak,D; Szewerniak,R; Olejarska,A; Jarosz,Ł. |
| ABSTRACT Many kinds of feed additives can be used in chicken diets to stimulate intestinal morphological maturation and, consequently, intestinal function. The purpose of this study was to evaluate the effect of zeolite on broiler performance, gut morphology and gut digestive enzyme activity. The one-day old broiler chickens Ross 308 were assigned randomly into 3 groups with 30 birds per treatment. The 3 dietary treatments were: basal diet only (control group), basal diet + 2% zeolite, basal diet + 3% zeolite. Morphological and morphometric intestinal assessments were conducted using a light microscope. There was observed increase in villus height, villus perimeter, villus section area and crypt depth throughout duodenum and mid jejunum of the broilers fed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestive enzyme; Histology; Small intestine; Zeolite. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400737 |
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| Filik,G; Coşkun,I; Tekin,OK; Filik,AG. |
| ABSTRACT The present study was conducted to evaluate whether dietary hot pepper waste powder (HPWP) would affect the performance and small intestine histology parameters in Japanese quail chicks. A total of 160, one-day-old Japanese quail chicks were divided into 4 treatment groups of similar mean weight, comprising 4 subgroups of 10 chicks each. Chicks were fed on their basal diet supplemented by 0, 100, 200 or 400 mg/kg of dietary HPWP for each kg of starter (0 to 10 days), grower (11 to 24 days) and finisher (25 to 42 days) diets for 7 weeks. At the end of 42 days of age, 10 birds per subgroup were slaughtered and intestinal samples were taken to evaluate histomorphological analyses. The results showed that dietary HPWP supplementation did not affect... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hot pepper waste powder; Quails; Growth performance; Small intestine; Gut health. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000400304 |
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| Luquetti,Brenda Carla; Alarcon,Miguel Frederico Fernandez; Lunedo,Raquel; Campos,Daniel Mendes Borges; Furlan,Renato Luís; Macari,Marcos. |
| ABSTRACT This study aimed to assess the effects of glutamine as feed additive on performance and intestinal mucosa morphometry of broiler chickens vaccinated against coccidiosis. A total of 400 day-old male chicks were randomly assigned to four treatments (NVNG – no vaccination, no glutamine supplementation; NVG – no vaccination, glutamine supplementation (10 g kg−1); VNG – vaccination, no glutamine supplementation; VG – vaccination, glutamine supplementation) replicated four times with 25 birds per replicate. A commercial sprayed-on vaccine against coccidiosis containing Eimeria acervulina, E. maxima, E. mivati, and E. tenella was administered at the hatchery. Broiler performance was evaluated from 1-28 days, and morphometric parameters were analyzed at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anticoccidial vaccines; Intestinal ephitelium; Gut morphometry; Glutamine supplementation; Small intestine. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000400322 |
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| Javid,MA; Abbas,G; Waqas,MY; Basit,MA; Asif,M; Akhtar,MS; Masood,S; Saleem,MU; Qamar,SH; Kiani,FA. |
| ABSTRACT The present study was conducted to evaluate the effects of supplementation of garlic, ginger in the diets of broiler chickens and assessment in terms of feed intake, growth performance and economics of feeding. The results showed that groups supplemented with 0.5% garlic powder and 0.5% ginger powder has shown significant effects on body weight as compared to the control group at day 28. Groups supplemented with 0.5% garlic powder and 0.5% ginger powder show significant increase in body weight than the groups supplemented with 0.25% garlic powder and 0.25% ginger powder. Between different supplemented groups, villus length and width of duodenum and jejunum of birds served with 0.5% garlic powder and 0.5% ginger powder is significantly higher than... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ginger; Garlic; Bird performance; Histomorphometry; Small intestine. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000200347 |
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| Leng,Y.F.; Zhang,Y.; Zhang,Y.; Xue,X.; Wang,T.; Kang,Y.Q.. |
| The purpose of this study was to investigate the protective effects of ischemic post-conditioning on damage to the barrier function of the small intestine caused by limb ischemia-reperfusion injury. Male Wistar rats were randomly divided into 3 groups (N = 36 each): sham operated (group S), lower limb ischemia-reperfusion (group LIR), and post-conditioning (group PC). Each group was divided into subgroups (N = 6) according to reperfusion time: immediate (0 h; T1), 1 h (T2), 3 h (T3), 6 h (T4), 12 h (T5), and 24 h (T6). In the PC group, 3 cycles of reperfusion followed by ischemia (each lasting 30 s) were applied immediately. At all reperfusion times (T1-T6), diamine oxidase (DAO), superoxide dismutase (SOD), and myeloperoxidase (MPO) activity,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Post-conditioning; Limb ischemia-reperfusion injury; Small intestine. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000500005 |
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| Morales,W; Rodríguez,V; Garcia,NV. |
| ABSTRACT Feed costs are the main limiting factors in poultry industry and alternative sources of food and/or feed supplements to optimize the bird´s life cycle and to extend their production period need to be explored. This study evaluated morphometric parameters of the small intestine and gonadotropin transcript levels in Isa Brown laying hens supplemented with glutamine + glutamic acid (Aminogut®) during a second production cycle. Molting was induced and groups of 100 hens each, were supplemented with 0, 0.8, 1.6 or 2.4% Aminogut® in their diet. At the end of the experimental period, tissue sections from duodenum, jejunum and ileum were processed by the Hematoxylin-Eosin technique and samples from hypothalamus and hypophysis were collected for RT-PCR... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acids; Gonadotropin; Morphometry; RT-PCR; Small intestine. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000200255 |
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| Renfeng,Li; Xiangqin,Tian; Songlin,Qiao; Yanyan,Yang; Enmin,Zhou; Gaiping,Zhang. |
| Microfold (M) cells act as antigen-sampling sites for initiating antigen specific mucosal immune responses, but they may also provide a gateway for enteropathogen entry. In this study we demonstrated villous M cells by morphological and immunohistochemical methods to be present in the three regions of the small intestine from newborn piglets. Immunohistochemical analysis, using anti- cytokeratin 18 (CK18) primary antibodies, showed a gradually decreased density of M cells from the lower crypt epithelium to the upper villous epithelium. The proportion of villous M cells was greater in the ileum than in the duodenum or the mid-jejunum. Ultrastructural observation revealed that villous M cells were mainly columnar in shape in the duodenum and the mid-jejunum,... |
| Tipo: Journal article |
Palavras-chave: M Cells; Villous epithelium; Small intestine; Newborn piglets. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000400011 |
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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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| Williams,MA; Lallo,CHO; Sundaram,V. |
| ABSTRACT The present study evaluated the effects of early post-hatch feeding on the growth and development of the gastrointestinal tract (GIT) of mule ducks reared in the humid tropics to five days of age. A total of 120 newly hatched mule ducklings were selected and randomly assigned to four treatment groups. Each with 30 birds, (T1, T2, T3, and T4) is based on four feeding regimes (feed accessed at 3, 24, 36, and 48 hours post-hatch) for five days. The ducklings were euthanized each day and the parameters: small intestinal samples were processed for histological analysis and histometrical parameters including villi length and width, crypt width and depth, and the number of goblet cells per villus was measured, statistically analyzed using ANOVA and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Post hatch feed times; Growth and development; Small intestine; Gastrointestinal tract; Mule ducklings. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2021000100311 |
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| Huang,S. |
| ABSTRACT Toll-like receptors (TLRs) are well-characterized in mice and rats, but little is known on their role in broiler chickens during acute heat stress (AHS). The aim of the present study was to estimate the change in TLR4 mRNA expression in the liver, kidney's pleen, heart, and small intestine of broiler chickens under AHS. A total of 240 healthy Arbor Acres (AA) broiler chickens were randomly divided into four groups: control group (22±1°C; 0h), HS2, HS5 and HS10 (38±1°C; 2h, 5h and 10h of heat stress, respectively). As AHS duration increased, TLR4 mRNA expression slightly decreased at HS2 and HS5, but was dramatically elevated in HS10 (p<0.001) compared with the control group in the small intestine, as well as in the spleen at HS2 (p=0.001) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Toll-like receptors 4; Liver; Small intestine; Acute heat stress; Broiler chickens. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000100087 |
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| Registros recuperados: 20 | |
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