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| Registros recuperados: 61 | |
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| Silveira,T.B.; Souza,S.F.; Medeiros,L.S.; Freitas,H.J.; Gracci,R.E.; Miglino,M.A.; Carvalho,Y.K.. |
| ABSTRACT In this essay, we quantify the concentration of collagen fibers in broiler chickens exposed to increasing concentrations of cupuacu seed by-product. Collection of material was carried out in five chickens per treatment at 70 days old in the groups: control, 5% and 10% inclusion of cupuacu seed by-product. Fragments of Thoracic Pectoralis (PT) and Iliotibial lateralis (ITL) muscles were prepared for light and electronic microscopy. The amount of collagen fibers in the muscle groups was 1.08±0.61% in the PTC group; 6.24±2.58% in PT5% and 7.30±2.75% in PT10%. In the Iliotibial Lateralis groups, the results were 6.96±3.14% in the ITLC; 7.43±4.22% in the ITL5% and 8.66±2.35% in ITL10%. The amount of collagen fibers in the ITL5% and ITL10% groups showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler chickens; Collagen; Theobroma grandiflorum. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000300791 |
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| Orsi,M.A; Doretto Jr,L; Camillo,S.C.A; Reischak,D; Ribeiro,S.A.M; Ramazzoti,A; Mendonça,A.O; Spilki,F.R; Buzinaro,M.G; Ferreira,H.L; Arns,C.W. |
| This study was carried out during 2002/2003, aiming to determine the prevalence of virulent Newcastle disease virus strains (NDV) in Brazilian commercial poultry farms. Clinical samples were obtained from the Southeastern, Southern and Central-Western regions, which comprise the main area of the Brazilian poultry production. Serum samples and tracheal and cloacal swabs of 23,745 broiler chickens from 1,583 flocks, including both vaccinated chickens and those with no vaccination information, were tested for NDV using a diagnostic ELISA kit. The seropositivity was 39.1%, and the isolation percentage by flock varied from 1.0 to 7.6%, and by region from 6.5 to 58.4%. Higher isolation rates (74.3-83.3%) were obtained after three passages in embryonated chicken... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Newcastle Disease Virus; NDV-free status; Pathogenicity; Broiler chickens; Biological characterization. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200014 |
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| Kobashigawa,Estela; Corassin,Carlos Humberto; Franco,Larissa Tuanny; Uliana,Rômulo Dutra; Oliveira,Carlos Augusto Fernandes de. |
| ABSTRACT: The aim of the present study was to assess the occurrence of aflatoxins (AFs) and fumonisins (FBs) in feed ingredients (corn and soybean meal) and finishing feed in a broiler operation system, as well was to evaluate their effect on the productivity of 20 batches of broilers produced and the histology status of broilers’ liver after slaughter. Corn samples presented the highest frequencies of AFs and FBs, at mean levels of 29.1 and 2,100µg/kg, respectively. Soybean samples presented mean levels of 1.5 and 70µg/kg for AFs and FBs, respectively. Batches of broilers receiving feed containing FB levels higher than 1,000µg/kg had lower weight gain and higher mortality rates, while those fed rations with AFs equal or above the limit of quantification... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mycotoxins; AFB1; FB1; Broiler chickens; Productivity. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000200652 |
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| Scheuermann,Gerson Neudí; Cunha Junior,Anildo; Cypriano,Lucas; Gabbi,Alexandre Mossate. |
| This study evaluated a phytogenic feed additive for broiler chickens. A total of 1,632 broiler chicks were distributed into four treatments: negative control (without growth promoter); positive control (avilamycine, 10ppm + colistin, 15ppm); and two alternative treatments with 150ppm of phytogenic additive, one with a reduced Ca and P levels diet (PA-R1) and the other with lower energy, and amino acids, besides Ca and P (PA-R2). The trial was conducted with 12 replicates, each consisted of a pen with 34 birds. The alternative diets showed body weight intermediate to the two controls at 42 days, with no significant (P>0.05) treatment effect on feed conversion ratio. No treatment differences (P>0.05) on carcass yield and composition was observed. There... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler chickens; Phytogenic feed additive; Antibiotic growth promoter. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000200032 |
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| Zacatula Mier, Heriberto. |
| En la alimentación humana, la carne es una parte importante de la dieta, representa aproximadamente 11% del total del consumo de alimentos. La carne de pollo, por su alto valor nutrimental, bajo costo y alta disponibilidad, es uno de los productos de origen animal de mayor consumo y aceptación. Lo que ha resultado que a nivel mundial, en los últimos 30 años su producción se haya cuadruplicado, mientras que la de otras especies, como la de cerdo, sólo ha duplicado su volumen (FAO, 2007). En las últimas décadas una parte importante de la investigación en el ámbito de la nutrición animal se ha dirigido a mejorar el valor nutritivo de los alimentos de origen animal, para ofrecer al consumidor un producto de acuerdo a su demanda y necesidades, con... |
| Tipo: Tesis |
Palavras-chave: Broiler chickens; Oregano oil; Lipid oxidation; Malondialdehyde; Lippia gravenolus. |
| Ano: 2009 |
URL: http://hdl.handle.net/10521/1169 |
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| Chan Díaz, David Jesús. |
| Se realizaron dos experimentos para evaluar dietas suplementadas con arginina (ARG), vitamina E (VE) y manano-oligosacáridos (MOS) en la inmunidad de pollos. En el primero, 700 pollos (1 día de edad), fueron divididos en 28 grupos y recibieron una de cuatro dietas: T1 = 1.31 % ARG y 10 mg de VE/kg; T2 = T1 + 0.3% de ARG; T3 = T1 + 70 mg de VE y T4 = T1 + 0.3 % ARG + 70 mg de VE. A los 12 días de edad, recibieron las vacunas contra Newcastle (EN), bronquitis, influenza (IA) y viruela; las variables evaluadas fueron la reacción postvacunal y la respuesta inmune. En el segundo experimento, 200 pollos (1 día de edad) fueron divididos en ocho tratamientos con arreglo factorial 2 x 4, los factores fueron: La vacuna contra coccidiosis (aplicada o no), y cuatro... |
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Palavras-chave: Inmunidad; Arginina; Vitamina E; MOS; Pollos de engorda; Arginine; Vitamin E; Broiler chickens; Immunity; Doctorado; Ganadería. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/673 |
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| Ponciano,Patrícia F.; Yanagi Junior,Tadayuki; Ferraz,Gabriel A. E S.; Scalon,João D.; Schiassi,Leonardo. |
| The air dry-bulb temperature (t db),as well as the black globe humidity index (BGHI), exert great influence on the development of broiler chickens during their heating phase. Therefore, the aim of this study was to analyze the structure and the magnitude of the t db and BGHI spatial variability, using geostatistics tools such as semivariogram analysis and also producing kriging maps. The experiment was conducted in the west mesoregion of the states of Minas Gerais in 2010, in a commercial broiler house with heating system consisting of two furnaces that heat the air indirectly, in the firsts 14 days of the birds' life. The data were registered at intervals of five minutes in the period from 8 a.m. to 10 a.m. The variables were evaluated by variograms... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler chickens; Kriging; Chick; Semivariogram; Thermal stress. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000300001 |
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| Mazzi,Carmen Maria; Ferro,Jesus Aparecido; Ferro,Maria Inês Tiraboschi; Savino,Vicente José Maria; Coelho,Antonio Augusto Domingos; Macari,Marcos. |
| The promoter region and the beginning of the coding region of the hsp70 stress gene were analysed in broiler chickens of a commercial breed (Hubbard-Pettersen), a breed selected for weight gain (PP1) and a non-selected breed (naked-neck Label Rouge). The naked neck gene (Naked neck, Na), which reduces feathering in birds and is thus related to heat resistance, was present in both PP1 and Label Rouge breeds. Genomic DNA was restricted with PstI and Southern blotting analysis of the samples revealed the absence of polymorphic sites for that enzyme in the promoter region and beginning of the coding region of the hsp70 gene of studied birds. PCR-SSCP analysis of these regions, however, indicated the presence of polymorphisms in the beginning of the coding... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler chickens; Hsp70 gene; Naked neck (Na) gene; Polymorphism; SSCP. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300010 |
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| IZEL, A. C. U.; MORAES, E. de; SOUSA, J. N.. |
| Com o objetivo de substituir parcialmente o milho por farelo de raiz integral (FRIM) e rama de mandioca (FRM) na alimentacao de frango de corte e reduzir os custos de alimentacao, no sentido de viabilizar economicamente a avicultura estadual, proporcionando ao avicultor uma alternativa de produzir parte da racao na propria granja, foi instalado um experimento em Manaus, utilizando-se diferentes niveis de FRIM e FRM em substituicao ao milho, com 2208 pintos da linhagem Hubbard, de ambos os sexos, de 1 ate 54 dias de idade, em delineamento de blocos causalizados, com um fatorial 4 x 3, em um total de doze tratamentos, cada um constutuido de 46 aves, e quatro repeticoes. Segundo os resultados, na fase inicial (1 a 35 dias), ha' possibilidade de substituicao... |
| Tipo: Folhetos |
Palavras-chave: Brasil; Amazonas; Feeding; Maize; Alimentação; Engorda; Frango de Corte; Ganho de Peso; Mandioca; Milho; Ração; Cassava; Broiler chickens; Weight gain. |
| Ano: 1992 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665248 |
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| Registros recuperados: 61 | |
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