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Search Results: 1 - 10 of 34516 matches for " Fernando Guilherme Perazzo;Teixeira "
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Efeito da Rela??o Arginina: Lisina sobre o Desempenho e Qualidade de Carca?a de Frangos de Corte de 3 a 6 Semanas de Idade, em Condi??es de Alta Temperatura
Costa, Fernando Guilherme Perazzo;Rostagno, Horacio Santiago;Toledo, Rodrigo Santana;Albino, Luiz Fernando Teixeira;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000800010
Abstract: an experiment was run using 720 male ross chicks, grown from 22 to 42 days of age under high environmental temperature condition (26.2 to 30.5oc), to evaluate the effect of the digestible arginine:lysine (arg:lys) ratio on performance and carcass quality of broiler chickens. a complete randomized design with six treatments (95.0, 102.5, 110.0, 117.5, 125.0 and 132.5% arg:lys ratio), six replicates and 20 birds per experimental unit was used. there was no significant effect on broiler performance, however arg:lys ratio linearly improved leg quarter yield and linearly decreased abdominal fat.
Níveis dietéticos de lisina para frangos de corte de 1 a 21 e 22 a 40 dias de idade
Costa Fernando Guilherme Perazzo,Rostagno Horacio Santiago,Albino Luiz Fernando Teixeira,Gomes Paulo Cezar
Revista Brasileira de Zootecnia , 2001,
Abstract: Foram realizados dois experimentos para determinar a exigência nutricional de lisina total para frangos de corte Ross de ambos os sexos, nos períodos de 1 a 21 e 22 a 40 dias de idade, respectivamente. Foram avaliados o ganho de peso, consumo de ra o, convers o alimentar e avalia o de carca a. Para cada experimento, o delineamento utilizado foi o inteiramente casualizado, em esquema fatorial 2x6, constituídos de dois sexos e seis níveis dietéticos de lisina, com seis repeti es e um total de 1440 aves. As dietas basais com 1,03% de lisina total, 22,00% PB e 3000 kcal EM/kg, no primeiro experimento, e 0,92% de lisina total, 20,00% PB e 3150 kcal EM/kg no segundo experimento, foram suplementadas com seis níveis de lisina pura (0; 0,06; 0,12; 0,18; 0,24 e 0,30%). Considerando-se os dados de ganho de peso e convers o alimentar, as exigências nutricionais estimadas para o experimento de 1 a 21 dias foram 1,303 e 1,249% de lisina total e 1,183 e 1,129% de lisina digestível, para os machos e fêmeas, respectivamente. Para o experimento de 22 a 40 dias, levando em considera o os parametros analisados de desempenho e avalia o de carca a, pode-se estimar uma exigência de 1,164 e 1,143% de lisina total e 1,044 e 1,023% de lisina digestível para machos e fêmeas Ross, respectivamente.
Níveis dietéticos de proteína bruta para frangos de corte de 1 a 21 e 22 a 42 dias de idade
Costa Fernando Guilherme Perazzo,Rostagno Horacio Santiago,Albino Luiz Fernando Teixeira,Gomes Paulo Cezar
Revista Brasileira de Zootecnia , 2001,
Abstract: Foram realizados dois experimentos para determinar o nível ideal de proteína bruta para frangos de corte Ross de ambos os sexos, nas fases inicial (1 a 21) e crescimento (22 a 42 dias de idade). Foram avaliados: o ganho de peso (GP), consumo de ra o (CR), convers o alimentar (CA) e características de carca a. Para cada fase, o delineamento experimental foi em blocos inteiramente casualisados. Na fase inicial, utilizou-se um fatorial 2x6, constituído de dois sexos e seis níveis de proteína bruta (20,00; 20,50; 21,00; 21,50; 22,00 e 22,50%), seis repeti es e um total de 1440 aves. Na fase de crescimento, utilizou-se um fatorial 2x5, constituído de dois sexos e cinco níveis de proteína bruta (17,50; 18,00; 18,50; 19,00 e 19,50%), seis repeti es e um total de 1200 aves. Os níveis de lisina total utilizados foram 1,27% e 1,16%, respectivamente para as fases inicial e de crescimento. Foram mantidas as rela es lisina: metionina+cistina, treonina, triptofano e arginina, levando em considera o o perfil da proteína ideal. Com base nos resultados de desempenho, a exigência de proteína bruta estimada para machos, na fase de 1 a 21 dias foi de 22,42% PB, enquanto que para fêmeas, observou-se efeito linear para GP e CA. Na fase de crescimento, os machos responderam linearmente aos níveis de proteína para CR, CA, rendimento de peito e gordura abdominal, tendo estes resultados melhorados à medida que se aumentava o nível de proteína bruta da ra o. Para as fêmeas, verificou-se efeito quadrático do nível dietético de proteína para GP e efeito linear para CA e gordura abdominal. Os níveis de proteína bruta estimados foram: na fase inicial 22,4 e 22,5% e na fase de crescimento 19,5 e 18,5% de PB, respectivamente, para machos e fêmeas.
Efeito da Rela o Arginina: Lisina sobre o Desempenho e Qualidade de Carca a de Frangos de Corte de 3 a 6 Semanas de Idade, em Condi es de Alta Temperatura
Costa Fernando Guilherme Perazzo,Rostagno Horacio Santiago,Toledo Rodrigo Santana,Albino Luiz Fernando Teixeira
Revista Brasileira de Zootecnia , 2001,
Abstract: Foi realizado um experimento com 720 frangos de corte machos Ross, mantidos em alta temperatura ambiente (26,2 a 30,5oC), na fase de crescimento (22 a 42 dias de idade), com o objetivo de estudar o efeito da rela o arginina:lisina digestível (Arg:Lis) sobre o desempenho e a qualidade de carca a de frangos de corte. Foi utilizado um delineamento inteiramente casualizado com seis tratamentos (95,0; 102,5; 110,0; 117,5; 125,0; e 132,5% da rela o Arg:Lis na ra o), seis repeti es por tratamento e 20 aves por unidade experimental. N o houve efeito significativo dos tratamentos no desempenho de frangos de corte, entretanto, à medida que aumentou a rela o Arg:Lis, houve efeito linear crescente para o rendimento de perna e decrescente para a gordura abdominal.
Níveis dietéticos de lisina para frangos de corte de 1 a 21 e 22 a 40 dias de idade
Costa, Fernando Guilherme Perazzo;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Gomes, Paulo Cezar;Toledo, Rodrigo Santana;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000600016
Abstract: two experiments were carried out to determine the nutritional requirement of total lysine for ross broiler chickens from one to 21 and 22 to 40 days of age, of both sexes. the parameters evaluated were weight gain, feed intake, feed conversion and carcass evaluation. in each experiment, a completely randomized experimental design, in a 2 x 6 (two sexes and six dietary lysine levels) factorial arrangement with six replicates, using a total of 1440 birds, was used. the basal diets with 1.03% total lysine, 22.0% cp and 3000 kcal me/kg in the first experiment and 0.92% total lysine, 20.0% cp and 3150 kcal me/kg in the second experiment, suplemented with six levels pure lysine (0.0; 0.06; 0.12; 0.18; 0.24 and 0.30%), were used. considering weigth gain and feed conversion, the dietary requirement estimates for the experiment from 1 to 21 days were 1.303 and 1.249% total lysine and 1.183 and 1.129% digestible lysine for males and females, respectively. for the experiment from 22 to 40 days, the performance and evaluation carcass values were 1.164 and 1.143% total lysine and 1.044 and 1.023% digestible lysine for males and females, respectively.
Níveis dietéticos de proteína bruta para frangos de corte de 1 a 21 e 22 a 42 dias de idade
Costa, Fernando Guilherme Perazzo;Rostagno, Horacio Santiago;Albino, Luiz Fernando Teixeira;Gomes, Paulo Cezar;Toledo, Rodrigo Santana;Vargas Junior, José Geraldo de;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000600017
Abstract: two experiments were carried out to determine the ideal levels of crude protein (cp) for ross broiler chickens from one to 21 and 22 to 42 days of age, of both sexes. the parameters evaluated were weight gain (wg), feed intake (fi), feed:gain ratio (f/g) and carcass evaluation (cv). in the starting phase (1 to 21 days of age), different protein levels (20.00; 20.50; 21.00; 21.50; 22.00 and 22.50%) were used in diets containing 1.27% total lysine. in growing phase (22 to 42 days of age), the dietary protein levels were 17.50; 18.00; 18.50; 19.00 and 19.50% with 1.16% total lysine. in both experiments, were maintained ratio lysine: methionine+cystine, threonine, tryptophan and arginine, considering the ideal protein profile. in both experiments, a completely randomized block experimental design, in a 2x6 and 2x5 (two sexes and six or five dietary lysine levels) factorial arrangement, was used, with six replicates, using a total of 1440 and 1200 birds, respectively. considering bird performance, the dietary cp requirement estimate from 1 to 21 days, for the males was 22.42% cp, while the females showed linear effect for wg and f/g. in the growing phase (22 to 42 days of age), the protein levels affected linearly males fi, f/g, breast yield and abdominal fat. females showed quadratic effect for wg and linear effect for f/g and abdominal fat. the requirements of the crude protein estimates for male and female, respectively were: 22.4 and 22.5% cp for starting phase and 19.5 and 18.5% cp growing phase.
Inclus?o de ovo desidratado em ra??es para frangos de corte nas fases pré-inicial e de crescimento
Teixeira, Elisanie Neiva Magalh?es;Silva, José Humberto Vilar da;Ribeiro, Marcelo Luís Gomes;Costa, Fernando Guilherme Perazzo;Jord?o Filho, José;Araujo, Daniel de Magalh?es;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008000700018
Abstract: the experiment was carried out to determine the optimum inclusion level of dried egg powder (degg) in the pre-initial and growing rations of broilers. male cobb-500 chicks (n= 1,152) with initial live weight of 43.46 ± 0.23 g were housed in cages of 1,0 × 1,5 m. a completely randomized design with four rations 0, (0.5, 1.0 and 1.5% of degg), each one with 18 replications of 16 birds. isoproteic and isoenergetic rations were used, with 21.9% cp and 2,950 kcal amen from 1 to 7 days old and 20.9% cp and 3,000 kcal amen from 8 to 21 days old. egg contents were dried at 55oc for 72 hours and were negative for salmonella spp. dried egg powder inclusion levels showed a quadratic effect on feed intake, live weight, weight gain and feed conversion. weight gain was obtained with the use of 0.53% dried egg powder in the ration in the pre-starter and 0.73% in the initial growth phase.
Inclus?o do ovo desidratado em ra??es peletizadas ou fareladas para frangos de corte
Teixeira, Elisanie Neiva Magalh?es;Silva, José Humberto Vilar da;Costa, Fernando Guilherme Perazzo;Ribeiro, Marcelo Luís Gomes;Araujo, Daniel de Magalh?es;Jord?o Filho, José;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000600021
Abstract: the experiment was carried out to evaluate the effect of physical form diet (mash or pelleted) and inclusion of dehydrated egg (degg) up to 21 days of age on the performance and carcass characteristic of cobb-500 strain of broiler chicks at 42 days of age. the birds with average weight of 42.94 ± 0.51 g were allotted in pens of 1.0 x 1.5 m. the experimental design was completely randomized in factorial arrangment with two levels of degg (0 and 0.5%) and two physical form of diet (mash and pellet), resulting in four diets with 18 replicates of 16 birds during the phases from 1 to 7; 8 to 21; 22 to 33 and 34 to 42 days of age. the degg inclusion in the pre initial and initial diets did not influenced the performance, but the pelleted diet improved the performance of for broiler chicks up to 42 days. the pelleted diet also improved breast, pectoralis minor and fillet of breast yields in relationship to carcass weight, and increased the proventriculus and small intestine weights, while the mashed diet increased the gizzard weight.
Farelo de trigo e complexo enzimático na alimenta??o de poedeiras semipesadas na fase de produ??o
Araujo, Daniel de Magalh?es;Silva, José Humberto Vilar da;Miranda, Edma Carvalho de;Araujo, José Anchieta de;Costa, Fernando Guilherme Perazzo;Teixeira, Elisanie Neiva Magalh?es;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008000500010
Abstract: the study was carried out with the objective to evaluate the effects of the inclusion of the wheat bran (wb) with or without supplementation of an enzymatic complex (ec) on the performance of semi-heavy hens in the egg-production phase. a total of 288 lohmann brown pullets were used, distributed to a completely randomized design in 4 × 2 factorial arrangement, composed by four wb levels (0, 3, 6 and 9%) in the ration and enzymatic complex supplementation (0 or 100g/100 kg diet), with eight treatments and six replicates of six birds. the enzymatic complex contained the enzymes b-galactosidase, galactomananase, xilanase and a-glucanase. feed intake, final body weight, egg production, egg weight, egg mass, egg mass feed conversion or egg dozen feed conversion was not affected by wb inclusion in the diets. egg shell specific gravity deteriorated as wb levels increase in the diets. none of the characteristics was affected by the enzymatic complex supplementation, except for egg weight, that improved from 62.74 to 64.28 g. then, the use up to 9.0% of wheat bran in the ration is recommended for semi-heavily chickens in the production phase. the supplementation of a-galactosidase, galactomannanase, xylanase and a-glucanase improve egg weight.
Efeito do tempo de jejum pós-eclos?o, valores energéticos e inclus?o do ovo desidratado em dietas pré-iniciais e iniciais de pintos de corte
Teixeira, Elisanie Neiva Magalh?es;Silva, José Humberto Vilar da;Costa, Fernando Guilherme Perazzo;Martins, Terezinha Domiciano Dantas;Givisiez, Patrícia Emília Naves;Furtado, Dermeval Araújo;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000200014
Abstract: two experiments were carried out to determine the nutritional value of the dried egg (degg), and the effect of the post-starvation hatching time (psht) and the inclusion of dried egg powder in the diet of broiler chicks. in experiment 1, 120 male ross-308 broiler chicks were housed according to a completely randomized design into three treatments and five repetitions of eight birds each. excreta collection was daily performed from 24 to 29 days of age in the morning and afternoon. in experiment 2, a sex-mixed batch of 810 cobb-500 chicks was used. initial weight was 33.41 ± 0.53 g, and the chicks were housed in pens measuring 1.0 × 1.5 m. a completely randomized experimental design was used with nine treatments and six repetitions of 15 birds each, according to a 3 × 3 factorial of three degg levels (0, 2 and 4%) and three psht (28, 40 and 52 hours), corresponding to: 0, 12 and 24 hours of starvation after housing, respectively. degg showed 51.54% of cp and 4,278 kcal amen/kg. from 1 to 7 days of age, the birds submitted to starvation for 40 and 52 hours showed lower live weight, weight gain and feed intake when compared to birds fed sooner (at 28 hours psht). the poorest performance was shown by birds fasted for 52 hours (24 hours of starvation after being housed). degg levels of 4% in the pre-initial diet improved the live weight in the second and third days of age. in conclusion, degg might be used from 1 to 21 days of age in broiler diets without impairing the bird performance.
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