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	Provedor de dados Rev. Bras. Ciênc. Avic. (10) Autor Santin,E (10) Maiorka,A (9) Macari,M (5) Boleli,IC (3) Bruno,LDG (3) Dahlke,F (3) Silva,AVF (3) Fischer da Silva,AV (2) Paulillo,AC (2) Alessi,AC (1) Almeida,JG (1) Ariki,J (1) Borges,SA (1) Bueno,A (1) Gama,NMSQ (1) Kessler,AM (1) Krabbe,EL (1) Laurentiz,AC (1) Lourenço,M (1) Mesa,D (1) Mais... Palavra-chave Broiler breeder age (3) Broilers (3) Embryo (2) Aflatoxin (1) Amino acid (1) Ammonia (1) Antibióticos (1) Chlorine (1) Cytokines (1) Electrolytes (1) Embrião (1) Energy (1) Enzymatic activity (1) Exclusão competitiva (1) Frangos (1) Frangos de corte (1) Gastrointestinal tract (1) Glutamine (1) Incubação (1) Intestinal mucosa (1) Mais... Tipo do documento Info:eu-repo/semantics/article (10) Ano 2016 (3) 2006 (1) 2004 (2) 2002 (1) 2001 (2) 2000 (1) Mais... País Brazil (10) Idioma Inglês (7) Português (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 10 Primeira ... 1 ... Última Desenvolvimento do Trato Gastrointestinal de Embriões Oriundos de Matrizes Pesadas de 30 e 60 Semanas de Idade Rev. Bras. Ciênc. Avic. Maiorka,A; Santin,E; Fischer da Silva,AV; Bruno,LDG; Boleli,IC; Macari,M. O objetivo deste trabalho foi investigar o efeito da idade das matrizes pesadas sobre o desenvolvimento do trato gastrointestinal (TGI) dos embriões no terço final do período de incubação, bem como a utilização das reservas do saco vitelino nas 24 h pós-eclosão, em pintos alimentados ou em jejum. Foram utilizados ovos férteis da linhagem Cobb 500, oriundos de matrizes pesadas com 30 e 60 semanas de idade. O desenvolvimento do TGI (proventrículo+moela, segmentos do intestino delgado e saco vitelino) foi estudado entre o 17º e 21º dias de incubação (Experimento 1). Nas 24 h pós-eclosão foi pesquisado o efeito da presença ou não de alimento no lúmen intestinal sobre a utilização das reservas do saco vitelino (Experimento 2). Os achados deste trabalho... Tipo: Info:eu-repo/semantics/article Palavras-chave: Matrizes pesadas; Embrião; Incubação; Trato grastrointestinal; Saco vitelino. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000200003 Efeitos de Produto de Exclusão Competitiva na Prevenção dos Efeitos Tóxicos da Ocratoxina A em Frangos Rev. Bras. Ciênc. Avic. Santin,E; Maiorka,A; Gama,NMSQ; Dahlke,F; Krabbe,EL; Paulillo,AC. Esse experimento foi realizado com o objetivo de avaliar a ação de produto de exclusão competitiva (EC) sobre os efeitos da ocratoxina A (OA). As aves alimentadas com 2 ppm de OA na dieta reduziram significativamente o consumo de ração e ganho de peso, além de apresentarem pior conversão alimentar quando comparadas às aves não expostas à OA na dieta. O emprego da EC no primeiro dia de vida não minimizou esses efeitos, bem como não afetou os parâmetros zootécnicos estudados. Aves alimentadas com OA apresentaram diminuição nos títulos vacinais contra o vírus da doença de Newcastle, evidenciando-se assim a interferência dessa micotoxina na resposta imune humoral de frangos de corte. De outra forma, a EC não interferiu na resposta imune humoral de frangos de... Tipo: Info:eu-repo/semantics/article Palavras-chave: Frangos de corte; Exclusão competitiva; Mucosa intestinal; Ocratoxina. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000200008 Effect of Broiler Breeder Age and Glutamine Supplementation on the Development of the Intestinal Mucosa of 7-Day-Old Chicks Rev. Bras. Ciênc. Avic. Maiorka,A; Silva,AVF; Santin,E; Dahlke,F; Bruno,LDG; Boleli,IC; Macari,M; Trautenmuller,H. ABSTRACT The aim of this study was to evaluate the possible effects of glutamine and broiler breeder age on the development of intestinal mucosa in broiler chicks during first week of age. For this purpose, 32 one-day-old broiler chicks were distributed according to a completely randomized experimental design in a 2 x 2 factorial arrangement. Treatments consisted of two broiler breeder ages (30 and 60 weeks) and two dietary glutamine supplementation levels (0% and 1%). The morphological development of intestinal mucosa, particularly villus height and crypt depth, was evaluated. The results showed that the supplementation with 1% of glutamine influenced the development of villus height in the duodenum (p=0.009), jejunum (p = 0.006), and ileum (p = 0.001),... Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler breeder age; Glutamine; Intestinal mucosa; Morphology. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100017 Effect of broiler breeder age on pancreas enzymes activity and digestive tract weight of embryos and chicks Rev. Bras. Ciênc. Avic. Maiorka,A; Santin,E; Silva,AVF; Routman,KS; Pizauro Jr.,JM; Macari,M. A study was carried out to evaluate the effect of broiler breeder age on the development of the digestive tract of embryos and chicks. Fertilized eggs Cobb from 30 and 60 week-old broiler breeder was utilized in this experiment. The results showed that eggs from older (60 weeks of age) broiler breeders were heavier (p = 0.001) than those from younger (30 weeks of age) broiler breeder. In addition, older broiler breeder had larger (p = 0.001) embryos showing a higher yolk sac (p = 0.001) and higher gastrointestinal tract relative weight (p = 0.007) than those from younger broiler breeder. The activities of pancreatic lipase and trypsin enzymes were also higher in embryos from older broiler breeder than those from younger broiler breeder (p = 0.001 and p =... Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler breeder age; Embryo; Enzymatic activity; Gastrointestinal tract. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000100003 Effect of Broiler Breeder Age on the Intestinal Mucosa Development of the Embryos at 20 Days of Incubation Rev. Bras. Ciênc. Avic. 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 Effect of energy levels of diets formulated on total or digestible amino acid basis on broiler performance Rev. Bras. Ciênc. Avic. Maiorka,A; Dahlke,F; Santin,E; Kessler,AM; Penz Jr.,AM. This study was conducted to evaluate the performance and carcass and breast yields of broilers fed two different energy levels (3,200 or 2,900 kcal ME/kg) and two ways of expressing amino acid requirements (total - TAA or digestible - DAA) between 21 and 42 days of age. The results showed that broilers fed the diet containing 3,200 kcal ME/kg had higher weight gain (P=0.015), better feed conversion (P=0.001), and higher abdominal fat deposition (P=0.001) as compared to those fed the diet containing 2,900 kcal ME/kg. Diets formulated on DAA basis promoted higher weight gain (P=0.043), better feed conversion (P=0.010) and better conversion of ME intake into weight gain (P=0.007) as compared to those formulated on TAA basis. The results of this study suggest... Tipo: Info:eu-repo/semantics/article Palavras-chave: Amino acid; Broilers; Energy. Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000200003 Electrolytic Balance in Broiler Chicks During the First Week of Age Rev. Bras. Ciênc. Avic. Borges,SA; Maiorka,A; Laurentiz,AC; Fischer da Silva,AV; Santin,E; Ariki,J. Two experiments were carried out using 712 day-old chicks to evaluate the electrolytic balance (Na+K-Cl) in pre-starter (1-7 days) broiler diets. The feed, based on corn and soybean meal with 21.5 % protein and 2,900 kcal ME/kg, was offered ad libitum. In experiment I, K level was fixed, and Na and Cl levels were changed, using four 4 treatments and eight replicates of 16 birds. In experiment II, increasing levels of Na and K were used, with a total of four treatments and five repetitions of 10 birds. In both experiments, the dietary electrolytic balance was 40; 140; 240 and 340 mEq/kg. Electrolytic balance caused a quadratic effect on weight gain and feed:gain ratio, and a linear increase in feed intake when the electrolytic balance was increased by the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Broilers; Chlorine; Electrolytes; Potassium; Sodium. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000200008 Evaluation of yeast cell wall on the performance of broiles fed diets with or without mycotoxins Rev. Bras. Ciênc. Avic. Santin,E; Paulillo,AC; Nakagui,LSO; Alessi,AC; Maiorka,A. This experiment aimed at evaluating the effects of the interactions between aflatoxin (500 or 250 ppb) and ochratoxin (500 or 250 ppb), and the possible benefits of adding yeast cell wall to prevent the effects of these mycotoxins in broiler chickens. Relative organ weight gain and live performance were evaluated at 21 and 42 days of age. Results indicated that at the levels of mycotoxins included in the experimental diets, ochratoxin reduced feed intake and body weight gain, and aflatoxin only affect feed intake of 21-day-old birds. No interaction was observed between aflatoxin and ochratoxin at the levels used in experimental study. Yeast cell wall did not significantly reduced the deleterious effects of ochratoxins. No significant differences were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Aflatoxin; Ochratoxin; Yeast cell wall; Broilers; Performance. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000400004 Influence of Covering Reused Broiler Litter with Plastic Canvas on Litter Characteristics and Bacteriology and the Subsequent Immunity and Microbiology of Broilers Rev. Bras. Ciênc. Avic. Mesa,D; Lourenço,M; Souza,A; Bueno,A; Pereira,A; Sfeir,M; Santin,E. ABSTRACT In broiler production, the litter is reused for consecutives flocks, and it is treated during down time between flocks to reduce its microbial load. Although covering the litter with a plastic canvas is a common litter treatment in the field, there is little scientific information available on its efficacy. The aim of this study was to evaluate the effects of covering broiler litter with a plastic canvas for eight days on litter microbiological, physical, and chemical parameters, and on the intestinal microbiota and immunity of broilers. In the first trial, reused litter from a previous flock was distributed into three treatments, with six replicates each: L1 (negative control, litter free from Salmonella Enteritidis (SE) and Eimeria maxima (EM)... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ammonia; Cytokines; Lactobacillus; Macrophages; Salmonella. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000400563 Utilização de Prebióticos, Probióticos ou Simbióticos em Dietas para Frangos Rev. Bras. Ciênc. Avic. Maiorka,A; Santin,E; Sugeta,SM; Almeida,JG; Macari,M. Foi investigado o efeito da substituição de antibióticos por prebiótico, probiótico e simbiótico em dietas para frangos de corte de 1 a 45 dias de idade. Foram utilizados 750 pintos de 1 dia de idade, distribuídos em cinco tratamentos, sendo: T1-sem aditivos, T2-antibiótico (Olaquindox<FONT FACE=Symbol>â</FONT> e Nitrovin<FONT FACE=Symbol>â</FONT> ), T3-prebiótico (0,2% de parede celular de S. cerevisiae), T4-probiótico (300 ppm de B. subtilis) e T5-simbiótico (T3 + T4). O desempenho dos frangos de 1-45 dias de idade foi influenciado pelos diferentes tratamentos, sendo o melhor ganho de peso observado em aves que receberam o simbiótico, seguido daquelas com antibiótico, prebiótico e probiótico. O pior ganho de peso foi observado nas... Tipo: Info:eu-repo/semantics/article Palavras-chave: Antibióticos; Frangos; Prebióticos; Probióticos; Simbióticos. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000100008 Registros recuperados: 10 Primeira ... 1 ... Última

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