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Search Results: 1 - 10 of 8436 matches for " Elias Nunes;Cecato "
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Características da carca?a de cordeiros alimentados com dietas contendo gr?os de milho conservados em diferentes formas
Reis, Wagner dos;Jobim, Clóves Cabreira;Macedo, Francisco A. F.;Martins, Elias Nunes;Cecato, Ulysses;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000500026
Abstract: the objective of this study was to evaluate the use of corn grains in different forms (corn dry grain, high moisture corn silage, moisturized corn silage) in the diet of confined lambs, and its possible effects on the qualitative and quantitative characteristics of the carcass. twenty male bergamacia x corriedade lambs were used. the animals were confined and fed ad libitum, assigned to five treatments consisted of dry corn: high moisture corn silage or moisturized corn silage (0:100, 50:50, 100:0). there was not effect of the treatments on the main carcass characteristics. the average true yield of carcass was 51.5%, while the yield of commercial carcass was 42.4%. differences were not observed between the variable body condition and conformation of the carcass, in function of the treatments. the variables fat covering, fat color and fat thickness were similar. the forms of the corn grains used in the feeding of the lambs did not affect the qualitative and quantitative characteristics of the carcass.
Structure and nutritive value of Coastcross -1 and “Arachis pintoi” mixed pasture, with or without nitrogen fertilization Estrutura e valor nutritivo da pastagem de Coastcross -1 consorciada com "Arachis pintoi", com e sem aduba o nitrogenada
Wagner Paris,Ulysses Cecato,Elias Nunes Martins,Veridiana Aparecida Lim?o
Revista Brasileira de Saúde e Produ??o Animal , 2009,
Abstract: This trial was carried out to evaluate the production and quality of leaf blade (LB), sheath + green stem (SGS), dead material (DE) forage structural constituents of Coastcross and Arachis pintoi whole plant (WPA) mixed pasture, under grazing, during February 2003 and June 2004. The treatments CA0 = Coastcross + Arachis without N; CA100 = Coastcross + Arachis with 100 kg of N; CA200 = Coastcross + Arachis with 200 kg of N and C200 = Coastcross with 200 kg of N were distributed in a randomly block design, with two replicates. Pasture management was done through continuous grazing with variable stocking rate. Analyses of crude protein (CP), neutral detergent fiber (NDF) and dry matter in vitro digestibility (DMIVD) were done to LB, SGS, and WPA. The production of structural constituents varied in agreement with total mass and forage. Coastcross SGS contributed for forage production, and the quality characteristics are acceptable for animal production. Treatments that received nitrogen presented the highest CP values, and similar NDF and DMIVD to treatments without nitrogen. Objetivou-se, com este trabalho, avaliar a produ o e composi o química de forragem nos constituintes estruturais lamina foliar (LF), bainha + colmo verde (BCV), material morto (MM) da Coastcross e da planta inteira de Arachis pintoi (AP) em consorcia o sob pastejo no período de julho de 2003 a junho de 2004. Os tratamentos CA0=Coastcross + Arachis sem N; CA100=Coastcross + Arachis com 100 kg de N/ha/ano; CA200=Coastcross + Arachis com 200 kg de N/ha/ano e C200=Coastcross com 200 kg de N/ha/ano foram distribuídos em um delineamento em blocos ao acaso, com duas repeti es. O manejo do pasto foi por meio de lota o contínua e carga animal variável. Foram realizadas as análises de proteína bruta (PB), fibra em detergente neutro (FDN) e digestibilidade in vitro da matéria seca (DIVMS) da pastagem para LF, BCV e AP. As produ es dos constituintes estruturais variaram de acordo com os períodos experimentais, e os tratamentos com aduba o apresentaram valores superiores de LF, principalmente nos períodos de primavera e ver o. Além da melhor composi o nutricional indicada pelas LF e AP, a BCV da Coastcross expressou características qualitativas aceitáveis para produ o animal. Os tratamentos que receberam nitrogênio apresentaram maiores valores de PB e teores semelhantes de FDN e DIVMS ao tratamento sem nitrogênio.
Características morfológicas e índice de área foliar do capim-tanzania (Panicum maximum Jacq. cv. Tanzania-1) manejado em diferentes alturas, sob pastejo
Rêgo Fabíola Cristine de Almeida,Cecato Ulysses,Canto Marcos Weber do,Martins Elias Nunes
Revista Brasileira de Zootecnia , 2002,
Abstract: O objetivo do trabalho foi avaliar o efeito de diferentes alturas (24, 26, 43, 45, 52, 62, 73 e 78 cm) do pasto e diferentes períodos de coleta (28, 56, 84 dias), sobre a densidade de perfilhos aéreos e basais, peso e diametro de perfilhos basais, índice de área foliar (IAF), altura do meristema apical, número de nós e comprimento de entrenós em pastagem de capim-Tanzania (Panicum maximum Jacq. cv. Tanzania - 1). Foram utilizados novilhos da ra a Nelore em regime de pastejo com carga animal variável, por meio da técnica "put and take". O delineamento experimental utilizado foi inteiramente casualizado com duas repeti es. A densidade de perfilhos aéreos, o peso, o diametro, o número de nós e o comprimento de entrenós de perfilhos basais , a altura de meristema apical e o IAF aumentaram com os incrementos da altura de manejo das plantas. O perfilhamento basal n o foi alterado em fun o das alturas de manejo, mas reduziu no decorrer do experimento, assim como o perfilhamento aéreo. As variáveis número de nós, comprimento de entrenós, altura do meristema apical e IAF apresentaram comportamento quadrático, em fun o do período de coleta.
Avalia o de uma pastagem de Coastcross-1 (Cynodon dactylon (L.) Pers) sob diferentes níveis de matéria seca residual
Bortolo Marcelino,Cecato Ulysses,Martins Elias Nunes,Cano Clovenilson Claudio Perissato
Revista Brasileira de Zootecnia , 2001,
Abstract: O experimento foi realizado no período de agosto de 1997 a abril de 1998, com o objetivo de avaliar uma pastagem de Coastcross -1 (Cynodon dactylon (L.) Pers), em quatro níveis de resíduo de matéria seca (RMS: 1978, 2130, 2545 e 3857 kg de MS/ha), com lota o contínua e carga animal variável. Foram determinadas a produ o de matéria seca (PMS), a taxa de crescimento do pasto (TC), a acumula o líquida de MS (ALMS), a altura das plantas (AP), a porcentagem de solo descoberto (SD), a participa o dos componentes botanicos na pastagem em porcentagem de material morto (MM) e de folhas verdes (FV), a rela o folha/colmo (F/C) e a quantidade de folhas verdes/ha (FV/ha). Foi utilizado o delineamento inteiramente casualizado, com duas repeti es. A PMS e TC n o apresentaram rela o significativa com os níveis de RMS e os dias de utiliza o da pastagem. A AP aumentou linearmente com o incremento dos níveis de RMS e decresceu de forma linear com o passar dos dias de experimento. A porcentagem de SD e MM decresceu linearmente, à medida que aumentou o RMS na pastagem, mas elevou-se no decorrer dos dias de experimento em todos os RMS. Para a rela o F/C, porcentagem de FV e a produ o FV/hectare, ocorreu comportamento linear semelhante, aumentando conforme o aumento dos níveis de RMS e diminuindo ao longo do período do experimento.
Avalia o da produ o e de algumas características da rebrota de cultivares e acessos de Panicum maximum Jacq. sob duas alturas de corte
Cecato Ulysses,Machado Andréa Oliveira,Martins Elias Nunes,Pereira Luiz Alberto Fontes
Revista Brasileira de Zootecnia , 2000,
Abstract: O experimento foi realizado no período de setembro de 1995 a setembro de 1996, objetivando avaliar a produ o de matéria seca total/ha (PMST), folhas/ha (PMSf), vigor da rebrota (VR), número de perfilhos (NP) e porcentagem de meristemas apicais eliminados (MAE) em seis cultivares de gramíneas (Aruana, Centenário, Coloni o, Momba a, Tanzania e Tobiat ) e dois acessos (K249 e KK8) de Panicum maximum Jacq., em duas alturas de corte (20 e 40 cm), no período seco e chuvoso. O delineamento experimental foi o de blocos casualizados com parcelas subdivididas. A altura de corte influenciou apenas a PMST e PMSf do capim-tanzania, que foi maior nos cortes mais baixos no período chuvoso. Os capins Centenário e KK8 apresentaram maiores MAE à altura de 20 cm e o capim-Aruana, a 40 cm, nos dois períodos. A menor VR foi apresentada pelo capim-Aruana nas duas alturas, nos dois períodos experimentais. Os capins Centenário, KK8, Momba a, Tanzania e Tobiat mostraram maior produ o de matéria seca total e de folhas nos dois períodos avaliados, nas duas alturas de corte. Em fun o dos resultados obtidos, os capins podem ser manejados em qualquer altura de corte, exceto o capim-tanzania, que pode ser manejado mais baixo.
Desempenho de cordeiros terminados em confinamento, consumindo silagens de milho de gr?os com alta umidade ou gr?os de milho hidratados em substitui??o aos gr?os de milho seco da dieta
Reis, Wagner dos;Jobim, Clóves Cabreira;Macedo, Francisco de Assis Fonseca;Martins, Elias Nunes;Cecato, Ulysses;Silveira, Amauri da;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000200040
Abstract: this experiment was conducted to evaluate the replacement of different corn grains (dry corn grain, reconstituted grain corn silage and high-moisture grain corn silage) on th epreformance of feedlot lambs. sixty lambs (males and females) were randomly assigned to five treatments with twelve replicates and fed iisoprotein and isoenergetic diets, in different treatments: t1= (rcgs) reconstituted grain corn silage; t2 = (dcg) dry corn grain; t3 = 50% rcgs + 50% dcg; t4 = (hmgcs) high-moisture grain corn silage; t5 = 50% hmgcs + 50% dcg. oat hay was the used forage. average daily gain and feed: gain ratio at 28, 56 and 73 days of feedlot were evaluated. the diet with the total replacement of the dry corn grain by the high-moisture grain corn silage showed higher average daily gain at the 73 days than at that one at 28 and 56 days of feedlot confinement. this can be explained by the best digestibility presented by the silages, attributed to the gelatinization suffered by starch during the process. in that case, the high-moisture grain corn silage can be efficiently used in diets for lambs.
Valor nutritivo do capim-Tanzania (Panicum maximum Jacq. cv. Tanzania-1) pastejado em diferentes alturas
Cano, Clovenilson Cláudio Perissato;Cecato, Ulysses;Canto, Marcos Weber do;Santos, Geraldo Tadeu dos;Galbeiro, Sandra;Martins, Elias Nunes;Mira, Rodrigo Távora;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000800006
Abstract: crude protein (cp), neutral detergent fiber (ndf), acid detergent fiber (adf), phosphorus (p), potassium (k), calcium (ca), magnesium (mg) and in vitro dry matter digestibility (ivdmd) contents were assessed in the leaf blade and stem + leaf sheath fractions of tanzaniagrass (panicum maximum jacq. cv. tanzania-1) managed at four sward heights (20, 40, 50 and 65 cm). the grazing method was the continuous stocking and variable stocking rate, and used nelore steers with an average weight of 340 kg. the completely randomized experimental design was used with two replications, and five evaluations were performed during a period of 112 days. the cp, ivdmd, ca, p and mg contents decreased while ndf, adf and k concentrations increased in the leaf blade and stem + leaf sheath fraction in response to grazing height as well as period of evaluation. leaf blades exibited higher quality than stem + leaf sheath regardless of grazing height and evaluation time. tanzaniagrass grazed to 40 and 50 cm presents good chemical composition and ivdmd.
Avalia??o de cinco híbridos de milho (Zea mays, L.) em diferentes estádios de matura??o: 1. Produtividade, características morfológicas e correla??es
Beleze, Juliano Ricardo Fontanini;Zeoula, Lúcia Maria;Cecato, Ulysses;Dian, Paulo Henrique Moura;Martins, Elias Nunes;Falc?o, Alencariano José da Silva;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000300004
Abstract: this study was conducted to evaluate productivity and morphologic traits of five hybrids of pioneer corn: p32r21, p30r07, p3041, p30f33 and p30f80 at different maturity stages. the treatments were used in plots of 7 x 8 m in a randomized block design, with four replicates. the samples collected, of corn hybrid, were adopted trying to estimate phases of maturity of the plant (30, 34, 38, 42 and 46% of dry matter [dm]). in the first maturation stage, some parameters (plant height, the ear of the corn insertion height, plant weight, stem diameter, number medium of ears of the corn) were evaluated, at harvest. for each maturation stage, was done separation of stem + sheath, leaf lamina, grain, cob and straw. the hybrid p32r21 and p3041 presented shown weight, diameter stem and plant height. dry matter (dm) yield, green material, grain, leaf lamina, and stem + sheath, expound t/ha at hybrids were different and presented significance at days after seeding (das). the increase the productivity dm verify with the advanced the maturity stage hybrids, correlations positively with increase the production grain (r2 = 64.3%). too the production dm correlations positively with concentration ear (r2 = 56.0%) and negatively (r2 = -56.7%) with the concentration stem + sheath (in relation a whole plant).
Avalia??o de cinco híbridos de milho (Zea mays, L.) em diferentes estádios de matura??o: 2. Concentra??es dos componentes estruturais e correla??es
Beleze, Juliano Ricardo Fontanini;Zeoula, Lúcia Maria;Cecato, Ulysses;Dian, Paulo Henrique Moura;Martins, Elias Nunes;Falc?o, Alencariano José da Silva;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000300005
Abstract: this study was conducted to evaluate the structural component concentrations of five hybrids of pioneer corn: p32r21, p30r07, p3041, p30f33 and p30f80, at different maturity stages. the treatments were used in plots of 7 x 8 m in a randomized block design, with four replicates. the samples collected, of corn hybrid, were adopted trying to estimate phases of maturity of the plant (30, 34, 38, 42 and 46% of dry matter [dm]). for each maturation stage, was done separation of stem + sheath, leaf lamina, grain, cob and straw. after the weight and with posterior determination of dm crude, it was possible to obtain the concentrations and relations (%) of grain, cob + straw, ear of the corn, stem + sheath and leaf lamina in the whole plant of five hybrids at different maturation stage. for all the evaluated parameters, the hybrids were different and showed significant effect at days after seeding (das). it was observed that as the plant maturity stage (das) advanced, an increase of ear and grain concentration and a decrease of the structure component (leaf lamina, stem + sheath) in a dm the whole plant were observed.
Avalia??o da produ??o e de algumas características da rebrota de cultivares e acessos de Panicum maximum Jacq. sob duas alturas de corte
Cecato, Ulysses;Machado, Andréa Oliveira;Martins, Elias Nunes;Pereira, Luiz Alberto Fontes;Barbosa, Marco Aurélio Alves de Freitas;Santos, Geraldo Tadeu dos;
Revista Brasileira de Zootecnia , 2000, DOI: 10.1590/S1516-35982000000300004
Abstract: the experiment was carried out from september 1995 to september 1996, to evaluate the total dry matter/ha (tdm), of leaves/ha (ldm), regrowth vigor (rv), tillers number (tn), and percentage of eliminated apical meristems (ame) in six grass cultivars (aruana, centenario, coloni?o, momba?a, tanzania and tobiat?) and two genotypes (k249 and kk8) of panicum maximum jacq., at two cutting heights (20 and 40 cm), during dry and rainy season. a split plot experimental design was used. the height cutting only influenced the yield of tdm and ldm of tanzania grass that was higher in lower cuttings during rainy period. the centenario and kk8 grasses presented higher ame at 20 cm height and aruana at 40 cm, in both periods. the lowest rv was to aruana grass in the two cutting heights in the two experimental periods. the centenario, kk8, momba?a, tanzania e tobiat? grasses presented higher tdm and ldm both two periods, in the two cutting heights. by the results, the grasses can be managed in any cutting height, except the tanzania grass, which can be management with low height.
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