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| Lopes, Claudia da Costa; Universidade Federal Rural de Pernambuco; Rabello, Carlos Bôa-Viagem; Universidade Federal Rural de Pernambuco; Silva Júnior, Valdemiro Amaro da; Universidade Federal Rural de Pernambuco; Holanda, Mônica Calixto Ribeiro de; Universidade Federal Rural de Pernambuco; Arruda, Emmanuele Maria Florêncio de; Universidade Federal Rural de Pernambuco; Silva, Jaqueline de Cássia Ramos da; Universidade Federal Rural de Pernambuco. |
| Objetivou-se avaliar o desempenho, a digestibilidade das dietas, a retenção corporal de nutrientes e o desenvolvimento da mucosa intestinal de pintos de corte de 1 a 8 dias de idade, alimentados com dietas contendo níveis crescentes de levedura de cana-de-açúcar. Utilizou-se 300 pintos de corte, com um dia de idade, distribuídos em delineamento inteiramente casualizado, composto de cinco tratamentos e seis repetições de 10 aves. Os tratamentos consistiram de níveis crescentes de 0; 1,25; 2,5; 3,75 e 5,0% de inclusão de levedura. Não houve efeito da levedura sobre o desempenho zootécnico. Houve redução no coeficiente de metabolizabilidade da energia bruta, na energia metabolizável aparente e a aparente corrigida com os níveis crescentes. O nível de 2,09%... |
| Tipo: Pesquisa de campo; análise laboratorial |
Palavras-chave: 5.04.00.00-2 avaliação nutricional; Frango de corte; Vilosidades intestinais; Retenção de nutrientes; Saccharomyces cerevisiae nutritional evaluation; Broiler; Intestinal villi; Nutrient retention; Saccharomyces cerevisiae. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10787 |
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| Pelicano,ERL; Souza,PA; Souza,HBA; Figueiredo,DF; Amaral,CMC. |
| This study aimed at evaluating the effect of the use of different growth promoters on the morphometry and ultra-structure of the intestinal mucosa of 42-day-old broilers. A total number of 36 male Cobb broilers was distributed in a randomized experimental design with a 3 x 3 factorial arrangement, with 3 prebiotic and 3 probiotic sources in the feed, summing up 9 treatments, with 4 replicates each. There was a significant interaction (P<0.01) among the studied factor for villi height (VH) in all intestinal segments, and for crypt depth (CD) in the duodenum and the ileum. In the duodenum, higher villi were obtained in the control group, with the combination of B. subtilis and prebiotics, and with the single use of MOS+OA. No VH differences were observed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Probiotics; Prebiotics; Digestive system; Intestinal villi. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000300006 |
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| Liu,Z; Wu,Q; Jiao,C; Cheng,B; Zhu,D; Ma,Y; Li,Y; Li,W. |
| ABSTRACT The aim of this study was to investigate the effects of glutamine (Gln) on the intestinal mucosal structure and immune cells of broilers infected with Salmonella Enteritidis. 160 1-d-old commercial Arbor Acres (AA) broilers were randomly selected to receive one of four treatments, each of which had 5 replicates. Each replicate consisted of 8 chicks subjected to a 21-d feeding trial. Group I served as the unchallenged (CON). All birds in groups II (SCC) - IV were challenged with 2.0 × 104 CFU/mL of S. Enteritidis. The birds in groups III and IV were treated with 0.5% and 1.0% Gln. The results showed that S. Enteritidis infection led to a decrease in the relative length and weight, villus height:crypt depth (VH:CD) of the jejunum and ileum, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glutamine; Intestinal villi; Mucosal immunity; Salmonella Enteritidis; Broiler. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000300309 |
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| Fonseca,Belchiolina Beatriz; Beletti,Marcelo Emílio; Silva,Max Siqueira da; Silva,Paulo Lourenço da; Duarte,Ivamario Nahas; Rossi,Daise Aparecida. |
| It was studied, in this work, the effects of supplementation of probiotics on the performance, on the pH of crop content, on the morphometry of the ileum and on the number of enterobacteria in the cecum of the broilers. Out of the 120 studied birds, 60 belonged to the test group and 60 to the control group. At 1, 7, 12, 18, 23 and 28 days of age, the chickens and rations were weighed and mortality and morbidity were determined. Then, the birds were sacrificed and the pH of the crop content was measured, ileum fragments were collected for morphometric analysis and the enterobacteria in the cecal content were quantified. The mean pH was lower in the group that was given probiotics at 1, 7 and 18 days of age. There were no differences on ration consumption,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weights; Competitive exclusion; Enterobacteria; Intestinal villi; Ration. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000800018 |
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