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Search Results: 1 - 10 of 192723 matches for " George Henrique Kling de;Barbosa "
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Avalia??o da qualidade óssea mediante parametros morfométricos, bioquímicos e biomecanicos em frangos de corte
Barbosa, Anderson de Almeida;Moraes, George Henrique Kling de;Torres, Robledo de Almeida;Reis, Denise Torres da Cruz;Rodrigues, Conrado de Souza;Müller, Elisa Sialino;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000400011
Abstract: the objective of the experiment was to determine the biochemical, morphometrics and biomechanical aspects of femur bones of broilers. it was used six hundred male and female broilers at one day of age from three different lines (hb1 and hb2 - ufv and hb3 - commercial). they were fed ad libitum on starter (1 to 21 days), grower (22 to 35 days) and finisher (36 to 42 days) rations. the experimental design was completely randomized, in a factorial arrangement 3 × 2 (three lines and two sexes) with 5 replicates and 10 birds per experimental unit (box). the weight, length, cross-sectional area, moment of inertia, maximum load, modulus of elasticity, bending strength, collagenous and non collagenous proteins and body weight of the broilers were evaluated in the femur. at 21, 28, 35 and 42 days of age, one male and one female of each line were randomly selected per box, in a total of five boxes per line. among lines, hb3 presented higher superior body weight in all ages, and among sexes, the males were heavier. the strength of maximum load was higher for the males and lines hb3 was higher than hb1and equal to hb2 at 42 days of age. the worst results of elasticity and bending strength at 42 days of age were observed in males from line hb2, which did not differ from hb3 regarded to bending at 42 days of age and to elasticity measured in all ages, which characterizes low bone quality of the males and line hb3. biomechanical aspects of femurs bones, as modulus of elasticity and bending strength, to correct and avoid bone damages of broilers due to their heavier weight.
Perfil da aspartato aminotransferase e alanina aminotransferase e biometria do fígado de codornas japonesas
Barbosa, Anderson de Almeida;Müller, Elisa Sialino;Moraes, George Henrique Kling de;Umigi, Regina Tie;Barreto, Sergio Luiz de Toledo;Ferreira, Ronaldo Martins;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010000200012
Abstract: an experiment was conducted to determine the activities of aspartate aminotransferase and alanine aminotransferase and the liver biometry of laying quails (coturnix coturnix japonica) from one to 25 days of age. ninety, day-old, quails were used. a randomized complete experimental design was used with six ages, five replicates and one animal per experimental unit. at 1, 5, 10, 15, 20 and 25 days of age five animals were sacrificed, the liver removed, weighed, frozen with liquid nitrogen and stored at -20 oc. liver samples were collected, homogenized and centrifuged to determine the homogenate aspartate aminotransferase and alanine aminotransferase activities. liver weight developed linearly with age but differently from the body weight. total aspartate aminotransferase and alanine aminotransferase activities showed a linear increase with age. total aspartate aminotransferase showed higher activities than alanine aminotransferase. at one day old, quail liver aspartate aminotransferase and alanine aminotransferase had specific activities higher than those observed at other ages. aspartate aminotransferase activity per g of liver was higher than aspartate aminotransferase at all ages studied. alanine aminotransferase activity per g of body weight showed a linear reduction with age. the data observed will allow better adjustment of the level of protein in quail feed.
Avalia??o de óleos, carv?o vegetal e vitamina E no desempenho e nas concentra??es lipídicas do sangue e dos ovos de poedeiras
Fanchiotti, Flavia Escapini;Moraes, George Henrique Kling de;Barbosa, Anderson de Almeida;Albino, Luiz Fernando Teixeira;Cecon, Paulo Roberto;Moura, Adolpho Marlon Antoniol de;
Revista Brasileira de Zootecnia , 2010, DOI: 10.1590/S1516-35982010001200017
Abstract: this experiment was carried out to evaluate the effects of two vegetal oils sources, charcoal and vitamin e on performance and lipid levels in blood and eggs of commercial laying hens. it was used lohman brown and lohman lsl laying hens at 58 weeks of age. the experiment lasted 84 days split in three 28-day periods and it was carried out in a complete random design in a split-plot scheme, in a 8 x 2 factorial scheme in the plots with eight diets an two commercial brands, and the periods in the subplots. for evaluation of productive characteristics, total cholesterol, blood tryclecydes and hdl, it was used four repetitions of six birds per experimental unit and, for determination of total yolk cholesterol, two repetitions were used. diets were added with 2% soybean oil or linseed oil combined or not with e vitamin (60 mg/kg ration) and/or charcoal (2%). no diet effects on the performance variables were observed. commercial strain effects on feed intake, shell thickness, total cholesterol and blood triglycerides and experimental period effects on egg weight, shells thickness, total cholesterol and blood triglycerides were observed. use of vegetal oil, charcoal and vitamin e in experimental diets do not affect characteristics of performance neither blood lipid and egg yolk total cholesterol profiles. lohmann lsl birds show higher feed intake and higher levels of cholesterol and triglycerides in the blood.
Parametros químicos, bioquímicos e mecanicos de fêmures de frangos de corte submetidos a diferentes balan?os eletrolíticos
Müller, Elisa Sialino;Barbosa, Anderson de Almeida;Moraes, George Henrique Kling de;Vieites, Flávio Medeiros;Araújo, Gilson Mendes;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000600020
Abstract: the objective of this study was to evaluate bone characteristics of broilers treated with different levels eb in the diet. a total of 935 cobb chicks of 1 day of age were distributed in a randomized blocks design with six treatments (eb: -50, 0, 50, 100, 150 and 200 meq/kg), six replicates and 26 birds per experimental unit. the basal diet for the two phases - starter, from 1 to 21 days and growth, from 22 to 42 days of age - was composed of corn and soybean meal, with electrolytic balance of 200 meq/kg. for the obtainment of the other eb levels, the basal diet was supplemented with ammonium chloride. mineral and bone protein contents and geometric parameters of femurs at 7, 14, 21 and 42 days were evaluated. at 7 days of age, birds fed the diet with eb of 200 meq/kg presented the highest magnesium content in the bone. the contents of calcium and phosphorus obtained with eb of 150 meq/kg did not differ from that achieved with eb of 200 meq/kg. the greatest calcium:phosphorus ratio was observed in bones of birds fed the diets containing eb of 0 and 50 meq/kg and the lowest content of ash was in those consuming the diet whose eb was 200 meq/kg. the electrolytic balance of 200 meq/kg feed promoted the lowest content of calcium at 42 days of age, but at the evaluation of the calcium:phosphorus ratio, it did not differ from the balance of 150 meq/kg. the content of collagenous proteins did not differ at 21 days between eb of 150 and 200 meq/kg feed. at the evaluation of the biomechanical parameters at 7 days, the highest value of maximum bending strength was obtained with the electrolytic balance of 200 meq/kg feed, demonstraiting that at 7 days of age the birds were more sensitive to variations of eb of the diet. at 14, 21 and 42 days, wider variations, from 150 to 200 meq/kg can be used in the eb levels, for they do not harm the bone properties of broilers.
Efeitos da inclus?o de farelo do resíduo de manga no desempenho de frangos de corte de 1 a 42 dias
Vieira, Patrícia Aparecida Fontes;Queiroz, José Humberto de;Albino, Luiz Fernando Teixeira;Moraes, George Henrique Kling de;Barbosa, Anderson de Almeida;Müller, Elisa Sialino;Viana, Maurício Tárcio dos Santos;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008001200014
Abstract: an experiment was carried out to evaluate the use of residue mango (mangifera indica l., var. ubá) meal (rmm) in diets of broiler chickens from 1 to 42 days old. a total of 600 male ross chicks were distributed to a completely randomized design, with 5 diets and with 6 repetitions of 20 birds each. diets consisted of the inclusion of 0.0, 2.5, 5.0, 7.5 and 10.0% of rmm in diets based on corn and soybean meal. feed consumption, average daily weight gain, feed conversion ratio and productive efficiency index were evaluated. in the period from 1 to 42 days, there was no effect of rmm levels in feed consumption. average daily weight gain and feed conversion ratio was not also affected by inclusion of 2.5 and 5.0% of rmm in the diet. the inclusion up to 5% of residue of mango meal in the diet did not affect the performance of chickens in the period from 1 to 42 days old.
Efeitos do ácido L-Glutamico da Dieta em Pintos de Corte
Silva, Fernanda Alvares da;Moraes, George Henrique Kling de;
Revista Brasileira de Zootecnia , 2002, DOI: 10.1590/S1516-35982002000200016
Abstract: in order to study the effects of l- glutamic acid (l-glu) levels on contents of collagenous (cp), non collagenous (ncp) total proteins (tp) and minerals in femur and tibia of male broiler chicks, one experiment was conducted with day-old broiler chicks, male hubbard, reared in electrically heated batteries with raised wire mesh floors and fed purified amino acid diets and water ad libitum for a 14 days period. the basal diet contained all essential l-amino acids, minerals and vitamins at requirement levels and was supplemented with 5,0; 7,5; 10,0; 12,5% l-glutamic acid (l-glu). each treatment had five replicates of five chicks each. supplementation of 7.5% l-glu was sufficient to improve growth, feed/gain ratio and the higher tibia and femur length. to reduce leg problems to a minimum observed (19.92%) were necessary higher level of non-specific nitrogen (12,5% l-glu). no effects were observed of l-glu levels upon feed consumption. there was no significant dietary effect in the content of cp, tp and ca, p, mg, mn, na e k tibia and femur ash. the ncp contents of both the tibia and femur were significant higher in chicks fed 12,5% l-glu. increasing the dietary level of non-specific nitrogen, it was observed a tendency to increase ncp content of tibia and femur. although some differences were observed in the mineral composition of bones, the mineral contents were in physiological range.
Efeitos do ácido L-Glutamico da Dieta em Pintos de Corte
Silva Fernanda Alvares da,Moraes George Henrique Kling de
Revista Brasileira de Zootecnia , 2002,
Abstract: Com o objetivo de estudar os efeitos de diferentes níveis de ácido L-glutamico (L-Glu) sobre as concentra es de proteínas colagenosas (PC), proteínas n o-colagenosas (PNC), proteínas totais (PT), cálcio (Ca), fósforo (P), magnésio (Mg), manganês (Mn), sódio (Na) e potássio (K) nos fêmures e tíbias, um experimento foi conduzido com pintos de um dia, machos, Hubbard, criados em baterias aquecidas com piso de tela elevado, alimentados com dieta básica purificada contendo todos os L-aminoácidos essenciais, vitaminas e minerais em níveis requeridos e suplementada com 5; 7,5; 10; e 12,5% de ácido L-glutamico (L-Glu), por um período de 14 dias. O delineamento experimental foi o inteiramente casualizado, com quatro tratamentos, cinco repeti es de cinco aves cada. Os pintos alimentados com 7,5% de L-Glu apresentaram maior ganho de peso, melhor eficiência alimentar e maiores comprimentos de tíbias e fêmures. Foram necessários 12,5% de L-Glu para reduzir a um mínimo (19,92%) a incidência de deforma es nas pernas, sem contudo eliminá-las. N o foi observado efeito dos níveis de L-Glu no consumo (P>0,05). N o houve efeito significativo dos tratamentos sobre os teores de PC, PT, Ca, P, Mg, Mn, Na e K nas tíbias e fêmures. Os teores de PNC das tíbias e fêmures foram significativamente maiores nos animais alimentados com 12,5% de L-Glu. Embora algumas diferen as tenham sido observadas na composi o mineral dos ossos, os conteúdos se encontravam numa faixa fisiológica normal.
Efeitos do ácido L-Glutamico e da Vitamina D3 no Desempenho e nas Anomalias ósseas de Pintos de Corte
Silva Fernanda Alvares da,Moraes George Henrique Kling de,Rodrigues Ana Cláudia Peres,Oliveira Maria Goreti de Almeida
Revista Brasileira de Zootecnia , 2001,
Abstract: Um experimento foi conduzido para estudar os efeitos de níveis de ácido L-Glutamico (L-Glu) e vitamina D3 (VD) da dieta em pintos de corte de um dia, machos, Hubbard, recebendo dieta básica purificada, contendo todos os L-aminoácidos essenciais, minerais e vitaminas (exceto vitamina D3), suplementada com 5, 10 e 15% de L-Glu, combinados com 0, 5.000, 10.000 e 15.000 UI de vitamina D3. O experimento foi realizado utilizando-se esquema fatorial, em delineamento inteiramente casualizado 3 x 4, com quatro repeti es de sete aves cada. O ganho de peso aumentou até o nível máximo estimado, de 8,56% de L-Glu e 15.000 UI de vitamina D3. A melhor taxa de convers o alimentar foi verificada com nível estimado de 8,40% de L-Glu. O maior consumo de ra o estimado foi obtido com 8,48% de L-Glu e 15.000 UI de vitamina D3. Houve redu o na incidência de problemas de pernas com 10% de L-Glu e 15.000 UI de vitamina D3. L-Glu estimado em 8,56% e 15.000 UI de vitamina D3 permitiu um melhor desempenho das aves, confirmando que esse aminoácido é boa fonte de nitrogênio n o-específico para maximizar o desempenho e reduzir a incidência de problemas de pernas.
Composi o Química do Soro de Pintos de Corte Alimentados com Dietas Purificadas
Silva Fernanda Alvares da,Moraes George Henrique Kling de,Rodrigues Ana Cláudia Peres,Fonseca Cláudio César
Revista Brasileira de Zootecnia , 2002,
Abstract: Um experimento foi conduzido com o objetivo de estudar os efeitos de níveis de ácido L-glutamico (L-Glu) e vitamina D3 (VD) no soro de pintos de corte de um dia, machos, Hubbard, criados em baterias aquecidas, recebendo dieta básica purificada, suplementada com 5, 10 e 15% de L-Glu combinados com 0, 5.000, 10.000 e 15.000 UI de vitamina D3/kg. Os animais foram distribuídos em esquema fatorial em um delineamento inteiramente casualizado, com 12 tratamentos, quatro repeti es e sete aves por repeti o. As concentra es máximas de cálcio no soro (9,61 mg/dL) foram obtidas com 15% de L-Glu e 14.181UI de VD; 7,33 mg/dL de cálcio i nico com 15% de L-Glu e 15.664UI de VD; 7,20 mg/dL de fósforo com 10% de L-Glu e 10.863UI de VD. Os maiores valores de atividade de fosfatase alcalina no soro foram obtidos com 10% de L-Glu e na deficiência de VD. Em geral, as aves alimentadas com 10% de L-Glu e 15.000UI de VD apresentaram melhor desempenho, melhor perfil sangüíneo e menor incidência de problemas de pernas.
Efeitos do ácido L-Glutamico e da Vitamina D3 nos Fêmures e Tibiotarsos de Pintos de Corte
Silva Fernanda Alvares da,Moraes George Henrique Kling de,Rodrigues Ana Cláudia Peres,Albino Luiz Fernando Teixeira
Revista Brasileira de Zootecnia , 2001,
Abstract: Um experimento foi conduzido com o objetivo de estudar os efeitos de três níveis (5, 10 e 15%) de ácido L-glutamico (L-Glu) e quatro níveis (0, 5000, 10.000 e 15.000 UI/kg) de vitamina D3 (VD) nos parametros ósseos de pintos de corte machos, Hubbard. Os animais foram criados em baterias aquecidas e alimentados, à vontade, com dietas de aminoácidos purificados de 1 a 14 dias de idade. O experimento foi realizado em esquema fatorial, em delineamento inteiramente casualizado 3 x 4, com quatro repeti es de sete aves cada. Observaram-se comprimentos máximos (37,61 e 50,36 mm), com 9,51% de L-Glu e 15.000 UI de VD e 9,99% de L-Glu e 15.000 UI de VD, para o fêmur e tibiotarso, respectivamente. O diametro do fêmur (3,62 mm) e tibiotarso (3,17 mm) aumentou até o nível máximo estimado, de 10,49% de L-Glu e 15.000 UI de VD, e 11,04% de L-Glu e 15.000 UI de VD, respectivamente. A resistência máxima estimada para o fêmur (52,47 kgf/mm) foi determinada com 7,57% de L-Glu e 8.978 UI, e a do tibiotarso (43,35 kgf/mm) com 6,24% de L-Glu e 12.591 UI de VD. N o foi observado efeito de tratamento nas concentra es de proteínas colagenosas (PC) no fêmur, que foi constante e igual a 23,44 mg/100 g. As menores concentra es de proteínas n o-colagenosas (PNC) (2,5 mg/100 g e 2,15 mg/100 g) foram obtidas com 9,32% e 9,73% de L-Glu, no fêmur e tibiotarso, respectivamente. As maiores concentra es de proteínas totais (PT) no fêmur e tibiotarso foram de 30,04 mg/100 g e 30,03 mg/100 g. As aves alimentadas com 10% de L-Glu apresentaram adequado desenvolvimento dos ossos, baixas concentra es de PNC nos ossos e menor incidência de problemas de pernas.
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