Consulta: subjectFacets:"Villus"
Registros recuperados: 9
Data/hora: 05/06/2024 02:19:19

Determining the Best Sectioning Method and Intestinal Segment for Morphometric Analysis in Broilers
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: 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

Citrus Peel Oils Supplementation in Broiler Diet: Effects on Performance, Jejunum Microflora and Jejunum Morphology
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: Erhan,MK; Bölükbaş&amp;#305;,ŞC.
ABSTRACT This study was carried out to determine citrus peel oils (orange, lemon, bergamot) as food supplementation in different levels on performance, microflora and morphology in broilers. The trial consisted of 1-day-old male and female Ross 308 chicks (250 male 250 female). The study consisted of 10 groups in total and each group was replicated five times. Experimental diets were prepared by adding orange, lemon and bergamot peel oil levels (1,2 and 3 mL/kg) to basal diet. It was observed that the supplementation of citrus peel oils to the diet improved significantly the feed conversion rate. Especially the lowest feed intake and the best feed conversion ratio were received from broilers which were fed 3 mL/kg of orange peel oil. The study shows that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler; Citrus peel oil; Microflora; Performance; Villus.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000500015

Effect of Broiler Breeder Age on the Intestinal Mucosa Development of the Embryos at 20 Days of Incubation
Provedor de dados: Revista Brasileira de Ciência Avícola
Autores: 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

Digestible threonine for slow-growing broilers: performance, carcass characteristics, intestinal mucin, and duodenal morphometry
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Machado,Noédson de Jesus Beltrão; Lima,Cristina Amorim Ribeiro de; Brasil,Ronner Joaquim Mendonça; Quaresma,Débora Vaccari; Dilelis,Felipe; Silva,Ana Paula Pereira da; Curvello,Fernando Augusto.
ABSTRACT Five experiments were conducted to estimate the digestible threonine requirements of slow-growing broilers: experiment 1, starter phase (days 10 to 28); experiment 2, grower I phase (days 29 to 49); experiment 3, grower II phase (days 50 to 69); experiment 4, finisher phase (days 70 to 84); and experiment 5, which was specifically conducted to determine the production of intestinal mucin over two periods (days 50 to 69 and 70 to 84). Different birds were used in all experiments. A completely randomized design with five treatments and four replicates was used. Treatments consisted of increasing the values of digestible threonine in the diet through basal feed supplementation with L-threonine (98.5%), which was added instead of cornstarch. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acid; Nutritional requirements; Villus.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100514

Effect of probiotic Lactobacillus reuteri XC1 coexpressing endoglucanase and phytase on intestinal pH and morphology, carcass characteristics, meat quality, and serum biochemical indexes of broiler chickens
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Wang,Lei; Feng,Yuzhe; Zhang,Xiaowei; Wu,Guofang.
ABSTRACT This study investigated the effect of transformed Lactobacillys reuteri on intestinal pH and morphology, carcass characteristics, meat quality, and serum biochemical indexes of broiler chickens. A total of 480 broilers were assigned to six treatment groups and fed a phosphorus-adequate diet, a phosphorus-deficient diet, or a phosphorus-deficient diet containing different L. reuteri recombinants. The results showed that transformed L. reuteri decreased the pH in the duodenum and jejunum of chickens at day 21, decreased drip loss and cooking loss of muscles, and improved muscle tenderness of chickens at days 21 and 42, but did not affect carcass characteristics and only slightly decreased abdominal fat. Transformed L. reuteri also significantly...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bird nutrition; Meat quality; Microbial additive; Phosphorus; PH; Villus.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100519

Substitution of blood plasma with soy protein concentrate in piglet diet
Provedor de dados: Revista Brasileira de Zootecnia
Autores: Resende,Moisés Queiroz; Mascarenhas,Alessandra Gimenez; Mello,Heloisa Helena de Carvalho; Arnhold,Emmanuel; Teixeira,Karla Andrade; Rufino,Luciana Moura; Nunes,Romão da Cunha.
ABSTRACT In this study, we evaluated the effects of substitution of partial and total spray-dried blood plasma (BP) with soy protein concentrate (SPC) in the diet of post-weaning piglets on their performance, intestinal histomorphometry, and blood parameters. Fifty-four castrated male piglets, weaned at an average age of 21 days and an initial average weight of 7.01±0.294 kg, were distributed in a completely randomized block design, with three diets (0%SPC-5%BP, 2.5%SPC-2.5%BP, and 5%SPC-0%BP), six replicates, and three piglets per experimental unit. The experimental feeds were formulated to meet the requirements of the piglets at 21-32 and 33-42 days of age (pre-starter diet) and 43-66 days of age (starter diet). From 21 to 32 and 21 to 42 days of age,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed; Performance; Leukocytes; Swine; Villus.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400324

Purified cellulose, soybean hulls and citrus pulp as a source of fiber for weaned piglets
Provedor de dados: Scientia Agricola
Autores: Pascoal,Leonardo Augusto Fonseca; Thomaz,Maria Cristina; Watanabe,Pedro Henrique; Ruiz,Urbano dos Santos; Amorim,Alessandro Borges; Daniel,Everton; Silva,Susana Zaneti da.
Dietary fiber is an important component, which has a direct effect on intake, digestion, and absorption of nutrients; and also alters intestinal microbiota and morphology according to solubility. One digestibility trial and one performance experiment were performed to evaluate the effects of sources of fiber in diets for 21 day weaned piglets. The experimental diets used in both trials consisted of a control diet and diets with purified cellulose, soybean hulls or citrus pulp as a main source of dietary fiber. To evaluate the digestibility of nutrients (Assay 1), the total feces and urine collection method was used. The fiber sources did not affect nutrient digestibility, except for soluble fiber, which increased with the inclusion of citrus (Citrus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dietary fiber; Intestinal health; Short-chain fatty acids; Weaning; Villus.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000500400

Effect of cottonseed oil and ferrous sulfate in broiler diets on intestinal morphometry at 42 days of age
Provedor de dados: Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Autores: Oliveira,J.B.S.; Lima,V.B.S.; Bastos,H. P. A.; Nascimento,D.C.N.; Dourado,L.R.B.; Ferreira,G.J.B.C.
ABSTRACT The aim of the study was to evaluate the intestinal morphometry of broilers at 42 days of age fed diets containing different levels of cottonseed oil, with and without addition of ferrous sulfate. A total of 560 male Ross chickens were used in a completely randomized design with a 4×2 factorial arrangement and five replications with 14 birds. The cottonseed oil levels tested were 0%, 2%, 4%, and 6%. At 42 days of age, one bird per replicate was collected for morphometric. Analyzed variables were villus height, crypt length and muscle wall thickness. The statistical analysis was performed using SAS, P=0.05. In the duodenum and ileum, there was no significant effect of interaction between the treatments. In the jejunum, only the length of the crypt,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crypt; Muscle wall; Gossypol; Villus.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000401212

Isolation of epithelial cells, villi and crypts from small intestine of pigeons (Columba livia)
Provedor de dados: Biocell
Autores: Mac Donal,Oscar; Chediack,Juan G.; Caviedes-Vidal,Enrique.
The isolation of viable enterocytes, villi and crypts from the small intestine of a feral bird (Columba livia) is important for performing physiological experiments in ecologically relevant processes of membrane transport. The effectiveness of mechanical disruption, enzymatic digestion and chelating agents were compared. The objectives were to isolate enterocytes, villi and crypts from the small intestine of young pigeons; to evaluate the viability of the isolated intestinal epithelial cells isolated; and to verify the integrity of enterocytes by biochemical features. Enzymatic and mechanical methods yielded both elongated columnar and spherical cells. With the chelating method villi and crypts were obtained. All methods produced a high yield of intestinal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enterocyte; Villus; Crypt; Isolation methods; Avian gut.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452008000300002