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Search Results: 1 - 10 of 3705 matches for " Marcone Geraldo;Leonel "
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Avalia??o da qualidade nutricional da silagem de cana-de-a?úcar com aditivos microbianos e enriquecida com resíduo da colheita de soja
Freitas, Acyr Wanderley de Paula;Pereira, José Carlos;Rocha, Fernanda Cipriano;Costa, Marcone Geraldo;Leonel, Fernando de Paula;Ribeiro, Marinaldo Divino;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000100005
Abstract: the objective of this trial was to evaluate the fermentative characteristics and nutritional quality of sugarcane treated with microbial additives and 10% of soybean crop residue based on sugarcane fresh weight. the variety rb855536 harvested at 16 months of age was used in a completely randomized design with tree repetitions. addition of soybean crop residue reduced 33% of dm losses and 60% of ammonia-n (% total n) although final silage ph increased. use of inoculants reduced silage ph only in association with soybean crop residue with no significant effects on the remaining variables. for all treatments, silages had higher contents of fiber and lower dm levels than the material before ensiling. in vitro dry matter digestibility (ivdmd) was significantly higher (p<0.05) on treatments with soybean crop residue compared to the other treatments. moreover, compared with the material used for ensiling, reduction in digestibility was higher for treatments without soybean crop residue (24.3% vs. 9.3%). combination of soybean crop residue with sugarcane improved nutritional quality and reduced dm and soluble carbohydrates losses, mainly in the form of gases, diluting the proportion of cell wall components and preventing losses in forage ivdmd. the use of the inoculants l. plantarum and l. buchneri during ensiling of sugarcane is not recommended because no improvement was observed on the chemical composition or fermentation profile of silages.
Consórcio capim-braquiária e soja, produtividade das culturas e características qualitativas das silagens
Leonel, Fernando de Paula;Pereira, José Carlos;Costa, Marcone Geraldo;De Marco Júnior, Paulo;Lara, Luciano Aurélio;Sousa, Daniel de Paula;Silva, Cássio José da;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008001100020
Abstract: the objective was to evaluate the culture of signal grass and soybean intercropping or in single cultures on the production of dry matter (dm) and crude protein (cp) and total digestible nutrients (tdn) per ha. it was evaluate, also, contents of cp, neutral detergent fiber (ndf), lignin (lig), non-fibrous carbohydrates (nfc), ndt, butyric acid and lactic acid, ammonia nitrogen, the content of dm and ph of these silage cultures harvested in two phenological stages (r6 and r7) of the soybean plants. the production of dm was greater in signal grass in single culture, regardless of the vegetative stage. the dm content of signal grass silage in single culture was low in both vegetative stages (19.55 and 19.49%). in silages from signal grass and soybean intercropping and soybean in single culture, the content of dm was higher in the r7 vegetative stage. regardless of the vegetative stage, soybean in single culture produced higher content of cp, nfc, lig, tdn and higher amount of cp, followed by signal grass and soybean intercropping and signal grass in single culture, which showed inverse behavior for ndf content. the amount of tdn obtained in signal grass and soybean intercropping and soybean in single culture increased from the r6 to r7 vegetative stage, whereas in signal grass in single culture, decreased with advancing of the crop maturities. in all silages, harvested in the two vegetation stages, the values of ph and butyric acid were high and the values of lactic acid were low. in the r7 stage, ammonia nitrogen level of the silages was lower than the r6. it is feasible to use the signal grass and soybean intercropping for silage production, being recommended to harvesting the crops in r7 vegetative stage of the soybean plants.
Consórcio capim-braquiária e milho: produtividade das culturas e características qualitativas das silagens feitas com plantas em diferentes idades
Leonel, Fernando de Paula;Pereira, José Carlos;Costa, Marcone Geraldo;De Marco Júnior, Paulo;Lara, Luciano Aurélio;Ribeiro, Marinaldo Divino;Silva, Cássio José da;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008001200022
Abstract: the objective of this work was to evaluate the silage produced from signal grass intercropping with corn or in exclusive culture and harvesting at 100, 120, 140 and 160 days after sowing. productions of dry matter (dm), crude protein (cp) and total digestible nutrients (tdn) were evaluated. it was also evaluated, the quality characteristics as contents (%dm) of cp, ndt, non-fibrous carbohydrates (nfc), neutral detergent fiber (ndf), ammonia nitrogen, butyric acid, lactic acid and ph, these silages. dm content was higher in the forages, regardless of intercropping with corn or in exclusive culture was higher at 140 and 160 days after sowing. intercropping exclusive culture differed in dm production only at 120 days after sowing. simultaneous cultivation of corn with two rows of signal grass in interlines (intercropping) was higher than exclusive culture of signal grass. whatever culture ages, forage obtained from the intercropping of signal grass and corn had higher amounts of tdn/ha and resulted in silages with higher tdn contents and lactic acid and lower contents of ndf, lignin, ammonia nitrogen and acid butyric and lower ph.
Comportamento produtivo e características nutricionais do capim-braquiária cultivado em consórcio com milho
Leonel, Fernando de Paula;Pereira, José Carlos;Costa, Marcone Geraldo;De Marco Júnior, Paulo;Lara, Luciano Aurélio;Queiroz, Augusto César de;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000100022
Abstract: the objective of this work was to evaluate the chemical characteristics of the whole plant and the leaf and stem fractions of signal grass in different sowing arrangements to determine the productive performance of the corn/signal grass intercrop. the production of dry matter (dm), crude protein (cp) and total digestible nutrients (tdn) per area was evaluated, as well as the concentration of cp, digestible crude protein (cpd), neutral detergent insoluble crude protein (ndicp), neutral detergent fiber (ndf), lignin (lig) non-fiber carbohydrate (nfc) and tdn in dm and the leaf:stem ratio (l:s) at different sowing arrangements and culture age. the sowing arrangements tested were: two lines of signal grass in the corn inter-lines, hand-sowed signal grass in the corn inter-lines, one line of signal grass in the same line of corn, one line of signal grass in the corn inter-lines, exclusive signal grass and exclusive corn culture. the culture age effect was evaluated by sampling plants at 128, 141, 174 and 199 days after sowing. the largest production of dm, cpd and tdn was obtained for signal grass in exclusive culture. during the period when the corn culture shadowed the signal grass, the leaf:stem ratio of intercropped signal grass was lower than the signal grass in exclusive culture. forages from arrangements with higher shadowing (hand-sowed signal grass and one line of signal grass at the same line of corn) were less productive and presented higher cp concentration in the dm. in general, higher concentrations of cp and lower of ndf and lig were found in the leaf fraction in relation to the stem fraction, regardless the sowing arrangements. the intercrop did not affect the lig, nfc and tdn concentration in the dm of the signal grass, but the age had an effect on these variables. the corn production was not affected by the intercrop or by the different arrangements.
Níveis de concentrado na dieta de bezerros
Ribeiro, Marinaldo Divino;Pereira, José Carlos;Bettero, Vitor Pereira;Queiroz, Augusto César de;Costa, Marcone Geraldo;Leonel, Fernando de Paula;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000600022
Abstract: the objective of this study was to evaluate the levels of concentrate for growing calves. four holstein × brahman crossbred calves with average age of 7 months and 155 kg of body weight were used, distributed into one latin square design (4 × 4). the animals were fed ad libtum in the form of complete diet containing levels of 20, 40, 60 and 80% of concentrate on the dry matter basis (dm). the diets were composed of cynodon dactylon hay, corn, soybean meal and mineral mixture, and were isoprotein (15.4%). the dm, organic matter (om), neutral detergent fiber (ndf) and total carbohydrate (tc) consumption showed linear response; and crude protein (cp) and total digestible nutrients (tdn), quadratic response; expressed in kg/day. when expressed in %bw, the om, cp, ee and tdn consumption presented quadratic behavior; as dm, ndf and tc showed linear behavior. the apparent total digestibility dm and cp coefficients were quadratic influenced by the levels of concentrate, while om, ee, ndf and tc showed linear behavior. no effect was observed for the average concentration of ammoniac nitrogen, depending on the levels of concentrate, for each time of analysis. however, for ph, there was influence of the levels for the times analyzed. likewise, no effect was observed for the average concentration of serum glucose, however, for urea nitrogen serum (uns), a linear negative effect was observed, depending on the levels for each post-feeding time. therefore, up to 60% of concentrate could be included in the diet of calves; however higher levels can affect the use of bulky.
Consórcio capim-braquiária e milho: comportamento produtivo das culturas e características nutricionais e qualitativas das silagens
Leonel, Fernando de Paula;Pereira, José Carlos;Costa, Marcone Geraldo;De Marco Júnior, Paulo;Silva, Cássio José da;Lara, Luciano Aurélio;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009000100021
Abstract: the objective of this work was to evaluate differences between silages produced from exclusive cultures or intercropped with corn and signal grass cultures in different sowing arrangements (two lines of signal grass in the corn inter-lines and hand-sowed signal grass in the corn inter-lines) the production of dry matter (dm), crude protein (cp) and total digestible nutrients (tdn) for area was evaluated, as well as the qualitative variables of dm in the silages including cp, tdn, ndf, lig, nfc, nh3, butyric and lactic acids and ph. the corn in exclusive culture, signal grass in two lines and hand-sowed signal grass did not differ in relation to the dm, cp and tdn production or the qualitative variables in relation to the cp, tdn, ndf, lig, ph, nh3, butyric and lactic acid contents in the silage, showing better behavior than the signal grass exclusive culture. however, the canopy recovery in the area before harvest was faster in the two lines of signal grass in the corn inter-lines.
Características da silagem de cana-de-a?úcar tratada com inoculante bacteriano e hidróxido de sódio e acrescida de resíduo da colheita de soja
Freitas, Acyr Wanderley de Paula;Pereira, José Carlos;Rocha, Fernanda Cipriano;Detmann, Edenio;Ribeiro, Marinaldo Divino;Costa, Marcone Geraldo;Leonel, Fernando de Paula;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000100006
Abstract: the objective of this trial was to evaluate the nutritional quality and fermentation characteristics of sugarcane silages treated with inoculant (lactobacillus plantarum in doses of 1.0, 1.2 and 1.4 x 106 cfu/g nm), 40% sodium hydroxide solution (3% dry matter basis), or 10% of soybean crop residue added according to the sugarcane fresh weight. the variety rb855536 harvested at 11 and 13 months of age was used. the experiment was conducted at the universidade federal de vi?osa animal science department, vi?osa, mg, in a completely randomized design (three repetitions per treatment) with a factorial arrangement of 2 x 8 (two ages and eight treatments). for evaluation of chemical composition and degradation kinetic of silages three parameters were considered: 1) "nutritional quality" that included contents of dry matter, crude protein, neutral detergent fiber, acid detergent fiber, lignin and in vitro dry matter digestibility; 2) "physiological maturity" that included soluble carbohydrates, lignin, and the neutral detergent fiber undegradable fraction; and 3) "degradation velocity of fiber carbohydrates" that included kdndf. for evaluation of fermentation characteristics the following parameters were adopted: 1) "secondary fermentation and losses" that included dm losses, acetic acid, propionic acid, and ethanol concentrations; 2) "hydrogen potential" (ph); and 3) "protein degradation" (pd) that included ammonia-n concentration. soy crop residue improved silage nutritional quality and reduced both dm losses and ethanol production. treatment with sodium hydroxide also decreased ethanol production but did not improve nutritional quality and was not able to prevent dm losses. use of l. plantarum did not improve the nutritional quality of silages or reduced their dm losses and ethanol production.
Exigências nutricionais em macronutrientes minerais (Ca, P, Mg, Na e K) para novilhos de diferentes grupos genéticos
Leonel, Fernando de Paula;Pereira, José Carlos;Vieira, Ricardo Augusto Mendon?a;Freitas, José Ant?nio de;Dutra, Alecssandro Regal;Lima, Adhemar Ventura de;Ribeiro, Marinaldo Divino;Costa, Marcone Geraldo;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000200035
Abstract: the objective of this trial was to determine the macrominerals requirements (ca, p, mg, na, and k) for young bulls from different genetic groups. forty-four young bulls from the following genetic groups were used: nellore, f1 nellore x aberdeen-angus, f1 nellore x brown swiss, and f1 nellore x simmental. animals averaged 362 ± 35 kg of initial body weight and between 10 to 11 months of age. diet contained signal grass hay (brachiaria decumbens, stapf.), soybean meal, ground corn, molasses, and macro and microminerals premix. the net requirements for weight gain of each macromineral were obtained by the first derivative of their respective equations generated from non-linear regression of the mineral content (ca, p, mg, na, and k) in function of the animal empty body weight. the equation obtained from regressing empty body weight on weights taken immediately before slaughter was used for the conversion of body weight into empty body weight. the macrominerals requirements for maintenance were estimated using the nrc and arc models recommendation while absorption coefficients used were those proposed by the arc model. the model test of identity indicates no difference comparing regression equations for all studied macrominerals among the four genetic groups.
Avalia o da qualidade nutricional da silagem de cana-de-a úcar com aditivos microbianos e enriquecida com resíduo da colheita de soja
Freitas Acyr Wanderley de Paula,Pereira José Carlos,Rocha Fernanda Cipriano,Costa Marcone Geraldo
Revista Brasileira de Zootecnia , 2006,
Abstract: Objetivou-se avaliar as características fermentativas e a qualidade nutricional da silagem de cana-de-a úcar tratada com aditivos microbianos e enriquecida com 10% de resíduo da colheita de soja, com base no peso verde da cana. O experimento foi conduzido em delineamento inteiramente ao acaso, com três repeti es, utilizando-se a variedade RB855536, colhida em soca aos 16 meses. Embora a adi o do resíduo da colheita de soja tenha promovido aumento do pH final da silagem, os tratamentos com resíduo diminuíram em 33% as perdas de matéria seca das silagens e em 60% o teor de N-amoniacal em rela o ao nitrogênio total. A adi o dos inoculantes reduziu o pH da silagem quando em associa o ao resíduo de soja, n o exercendo efeito significativo sobre os outros parametros estudados. Em todos os tratamentos, as silagens apresentaram maiores concentra es dos componentes da fibra e redu o nos teores de MS em rela o ao material original, antes da ensilagem. Nos tratamentos com resíduo, os valores de digestibilidade in vitro da matéria seca (DIVMS) foram superiores aos obtidos nos demais tratamentos. Quando comparado o material utilizado para ensilagem, a redu o na digestibilidade foi superior para os tratamentos sem o resíduo (24,3 vs 9,3%). A associa o do resíduo da colheita de soja à cana-de-a úcar para ensilagem proporcionou melhor qualidade nutritiva, com menores perdas de MS e carboidratos solúveis, principalmente na forma de gases, e, conseqüentemente, menor acúmulo dos componentes da parede celular, além de redu o na DIVMS da forragem. N o se recomenda a utiliza o dos inoculantes L. plantarum e L. buchneri na ensilagem da cana-de-a úcar, pois nenhuma melhoria foi observada na composi o química ou no perfil de fermenta o das silagens.
Las razones de la desobediencia civil en las sociedades democráticas
Marcone, Julieta;
Andamios , 2009,
Abstract: the aim of this paper is to show that, faced with a widening lack of trust in political parties, in popular leaders and in public servants, civil disobedience becomes a crucial arm in the symbolic arsenal that of democratic states of law. public disobedience triggers two legitimating principles in a democratic order: the people's sovereignty and recognition among all of the right to have rights. it helps, for this very reason, to keep safe and expand rights, on the one hand, and to broaden the democratic horizon, on the other.
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