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Search Results: 1 - 10 of 29683 matches for " Moreira Andréia Luciane "
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Fermentative and microbiological profile of marandu-grass ensiled with citrus pulp pellets
Bernardes, Thiago Fernandes;Reis, Ricardo Andrade;Moreira, Andréia Luciane;
Scientia Agricola , 2005, DOI: 10.1590/S0103-90162005000300003
Abstract: high-wet roughages with low content of soluble carbohydrates, such as tropical grasses, should be inappropriate for producing silages of adequate quality. this study aimed to evaluate the fermentative and microbiological profiles of marandu-grass ensilaged with pelleted citric pulp (pcp). brachiaria brizantha (hochst ex. a. rich) stapf cv. marandu with 58 days of vegetative growth was harvested for producing experimental silages in pvc silos provided with bünsen valves and density capacity of 900 kg m-3. treatments were three pcp levels (0, 50 and 100 g kg-1 of fresh forage) and seven times (1, 4, 7, 14, 21, 28 and 56 days) after sealing. pcp inclusion increased soluble carbohydrate concentrations by 15 to 20% and reduced ph (5.3 to 4.2) and n-nh3 levels of experimental silages. an increase of the population size of the enterobacterium (mean of 3 cfu g-1) was observed only at the first day of fermentation, small growth (mean 0.5 of cfu g-1) of clostridium and the dominance of homo in relation to hetero-fermentative bacteria. citric pulp addition during marandu-grass ensilage was benefic, its utilization being recommended, especially when associated with economical advantages.
Fermentative and microbiological profile of marandu-grass ensiled with citrus pulp pellets
Bernardes Thiago Fernandes,Reis Ricardo Andrade,Moreira Andréia Luciane
Scientia Agricola , 2005,
Abstract: High-wet roughages with low content of soluble carbohydrates, such as tropical grasses, should be inappropriate for producing silages of adequate quality. This study aimed to evaluate the fermentative and microbiological profiles of Marandu-grass ensilaged with pelleted citric pulp (PCP). Brachiaria brizantha (Hochst ex. A. Rich) Stapf cv. Marandu with 58 days of vegetative growth was harvested for producing experimental silages in PVC silos provided with Bünsen valves and density capacity of 900 kg m-3. Treatments were three PCP levels (0, 50 and 100 g kg-1 of fresh forage) and seven times (1, 4, 7, 14, 21, 28 and 56 days) after sealing. PCP inclusion increased soluble carbohydrate concentrations by 15 to 20% and reduced pH (5.3 to 4.2) and N-NH3 levels of experimental silages. An increase of the population size of the enterobacterium (mean of 3 CFU g-1) was observed only at the first day of fermentation, small growth (mean 0.5 of CFU g-1) of clostridium and the dominance of homo in relation to hetero-fermentative bacteria. Citric pulp addition during Marandu-grass ensilage was benefic, its utilization being recommended, especially when associated with economical advantages.
Avalia??o de forrageiras de inverno irrigadas sob pastejo
Moreira, Andréia Luciane;Reis, Ricardo Andrade;Ruggieri, Ana Cláudia;Saran Junior, Arlindo José;
Ciência e Agrotecnologia , 2007, DOI: 10.1590/S1413-70542007000600035
Abstract: the research was carried out at unesp - jaboticabal to evaluate the dry matter yield (ymp), chemical composition of the cool season forage species: oat (avena strigosa schreb) and triticale (x triticosecale wittmack) no-till seeding in annual summer species cultivated area with pearl millet (pennisetum americanum (l.) k. schum.) or sorghum-sudangrass hybrid (sorghum bicolor (l.) moench x sorghum sudanense (piper) stapf). the forage was grazed by holstein cows in rotational stocking system. it was used the completely randomized outline in split plot scheme with four replications. in the first experiment the following treatments were evaluated: as - oat no-till seeding in sorghum-sudangrass hybrid stubble, am - oat no-till seeding in pearl millet stubble, ts - triticale no-till seeding in sorghum-sudangrass hybrid stubble, and tm - triticale no-till seeding in pearl millet stubble. the forages presented similar dry matter evaluation, however the ymp decreased on the second evaluation. it was observed highest crude protein, adf on the first yield and hemicellulose on the second evaluation. the harvest time did not affect the forage ndf content. triticale showed lower cp and higher cell wall content compared to the oat forage.
Atributos estruturais e produtivos de capim-marandu em resposta à suplementa??o alimentar de bovinos e a ciclos de pastejo
Gomide, Carlos Augusto de Miranda;Reis, Ricardo Andrade;Simili, Flávia Fernanda;Moreira, Andréia Luciane;
Pesquisa Agropecuária Brasileira , 2009, DOI: 10.1590/S0100-204X2009000500013
Abstract: the objective of this work was to evaluate the productive and structural traits of marandu grass (brachiaria brizantha cv. marandu) pasture in responseto supplemental bovine feeding levelsand to grazingcycles. the evaluated levels of concentrate feeding based on citric pulp, corn, soybean meal and urea were: 0.2, 0.6, and 1 % body live weight. a completely randomized block design was used, with split plots in time, in which supplementation levels were the plots and grazing periods were the subplots. supplemental feeding levels affected the grass canopy traits. changes were detected in leaf area index, light interception, and leaf/stem ratio under pre-grazed pasture conditions. the lowest figures were observed for the supplementation level of 0.2% live weight. under the post-grazing conditions, leaf biomass and the leaf/stem ratio traits were also least under the 0.2% supplemental feeding level. the structural and productive pasture traits, as well as the pasture morphogenetic indices exhibited effects of the grazing cycles. while dead material increased, tiller number and mass did not vary with the grazing cycles. the supplemental feeding of animals affected the marandu grass pasture traits. as the grazing season progressed from summer to autumn, pasture growth decreased and pasture structure was affected.
Características agron micas e composi o química de oito híbridos de sorgo [Sorghum bicolor (L.) Moench]
Pedreira Márcio dos Santos,Reis Ricardo Andrade,Berchielli Telma Teresinha,Moreira Andréia Luciane
Revista Brasileira de Zootecnia , 2003,
Abstract: O experimento foi conduzido com o objetivo de avaliar as características agron micas, composi o química das fra es e da planta inteira de oito híbridos de sorgo, semeados em mar o de 2000, no sentido de contribuir para os programas de sele o de germoplamas resistentes aos efeitos das estiagens prolongadas e, ao mesmo tempo, apropriados ao processo de ensilagem. Utilizou-se o delineamento em blocos ao acaso com oito tratamentos e três repeti es, para avaliar os híbridos AG-2005, BR-700, MASSA-03, 498111, 65E3, 698005, 698007 e 699005. N o houve diferen as significativas entre produ o de matéria seca (PMS) e propor o de folhas dos híbridos avaliados. A maior propor o de colmo (41,3%) foi observada no 498111 e a menor no MASSA-03 (28,9%). O híbrido 65E3 apresentou a maior propor o de panícula (43,2%) e o 498111 a menor (28,9%). Quanto à composi o química da planta inteira, n o foram observadas diferen as significativas entre os híbridos quanto aos teores de matéria seca, matéria mineral, hemicelulose, nitrogênio insolúvel em detergente neutro, nitrogênio insolúvel em detergente ácido e nutrientes digestíveis totais (NDT). Os teores de proteína bruta variaram de 6,5 a 8,8%, fibra em detergente neutro de 57,0 a 70,3%, fibra em detergente ácido de 29,8 a 36,2%, celulose de 25,3 a 31,2% e lignina de 3,6 a 5,5%, sendo estatisticamente diferentes entre os híbridos. O 699005 apresentou o maior teor de carboidratos solúveis (14,5%), diferindo estatisticamente apenas do híbrido 698007 (9,6%). Os híbridos também mostraram diferen as na composi o química das fra es folhas, colmo e panícula. De forma geral, todos os híbridos apresentaram teores de matéria seca e carboidratos solúveis adequados ao processo de ensilagem. As produ es médias de matéria seca dos híbridos (6,2 t/ha), foram altas considerando-se a baixa precipita o ocorrida durante o período experimental. A análise de Cluster sugeriu o agrupamento dos híbridos de maior PMS e menores porcentagens de panícula e NDT e híbridos de menor PMS, porém com maiores porcentagens de panícula e NDT.
Produ o de leite, consumo e digestibilidade aparente dos nutrientes, pH e concentra o de am nia ruminal em vacas lactantes recebendo ra es contendo silagem de milho e fenos de alfafa e de capim-coastcross
Moreira Andréia Luciane,Pereira Odilon Gomes,Garcia Rasmo,Valadares Filho Sebasti?o de Campos
Revista Brasileira de Zootecnia , 2001,
Abstract: Utilizaram-se 10 vacas lactantes HPC e mesti as H*Z, com 55 dias de pari o, peso médio de 540 kg, distribuídas em um delineamento em switch-back com o objetivo de avaliar a produ o e a composi o do leite, o consumo e a digestibilidade aparente de matéria seca (MS), matéria organica (MO), fibra em detergente neutro (FDN), proteína bruta (PB), carboidratos totais (CT) e extrato etéreo (EE), e o pH e a concentra o de am nia ruminal. Os animais foram alimentados ad libitum com cinco dietas contendo silagem de milho (SM), feno de alfafa (FA), feno de capim-coastcross (FCC), FA+ SM, FCC+1/2 SM, na propor o de 60%, da ra o total (base de matéria seca). Os consumos dos nutrientes n o foram influenciados pelas dietas. As digestibilidades aparentes de MS, PB e FDN foram maiores para as dietas contendo silagem de milho. O pH e a concentra o de am nia do líquido ruminal n o foram influenciados pelas dietas, porém observou-se resposta quadrática para o tempo de coletas. Registrou-se maior produ o de leite para os animais que receberam silagem de milho. Os teores de proteína bruta e gordura do leite n o foram influenciados pelas dietas.
Consumo e digestibilidade aparente dos nutrientes da silagem de milho e dos fenos de alfafa e de capim-coastcross, em ovinos
Moreira Andréia Luciane,Pereira Odilon Gomes,Garcia Rasmo,Valadares Filho Sebasti?o de Campos
Revista Brasileira de Zootecnia , 2001,
Abstract: Avaliaram-se o consumo e a digestibilidade aparente dos nutrientes, e o balan o de nitrogênio da silagem de milho e dos fenos de alfafa e de capim- coastcross, em ensaio com ovinos. Foram utilizados 15 animais, sem ra a definida, castrados, com peso médio de 47,5 kg, distribuídos em um delineamento em blocos casualizados com cinco repeti es. O consumo de matéria seca, em g/Kg0,75, foi influenciado pelos alimentos, registrando-se maior valor (68,06), para os animais que receberam feno de alfafa. Os consumos de fibra em detergente neutro e extrato etéreo foram menores para os animais que receberam silagem de milho. Já os consumos de proteína bruta e nutrientes digestíveis totais, de 201,97 e 643,42 g/dia, respectivamente, foram maiores para os animais alimentados com feno de alfafa. Este resultado deve-se ao fato de o feno de alfafa possuir melhor valor nutritivo e estar associado ao teor mais elevado de matéria seca. As digestibilidades aparentes da matéria seca e proteína bruta, de 56,47 e 73,92%, respectivamente, também foram maiores para os animais que receberam feno de alfafa. O balan o de nitrogênio foi positivo apenas para os animais alimentados com fenos, os quais apresentaram ganhos de peso de 100,79 e 147,62 g/dia para feno de capim-coastcross e feno de alfafa, respectivamente, enquanto que os animais alimentados com silagem de milho apresentaram perda de peso (-34,92 g/dia). Este fato pode ser atribuído a superioridade da composi o química dos fenos em rela o à da silagem de milho.
Caracteriza o agron mica e composi o química de híbridos de milho = Agronomic evaluation and chemical composition of corn hybrid
Ulysses Cecato,Andréia Luciane Moreira,Júlio Cesar Damasceno,Geraldo Tadeu dos Santos
Acta Scientiarum : Animal Sciences , 2007,
Abstract: O trabalho teve por objetivo avaliar a produ o de matéria seca total (MST), de colmo (MSc), de folhas (MSf), de espigas (MSe), teores de proteína bruta (PB), fibra em detergente ácido (FDA), altura de planta (AP) e rela o colmo/folha (C/F) de híbridos (Zea mays L.) AG 122, AG 519, C 525, C 805, D 170, D 771, G 600, G 1328, P 3041, P 3069, XL 520, XL 530, OC 705, FO 01. Utilizou-se o delineamento experimental inteiramente casualizado, com 10 repeti es. O híbrido FO 01 apresentou maior produ o de matéria seca, maior altura de planta e maior produ o de colmo, porém com menor percentagemde espigas e folhas, prejudicando a qualidade do material original. A maior produtividade apresentada pelos híbridos está associada a maior altura da planta e maior propor o de colmos na matéria seca total. Em geral, uma boa produ o de matéria seca, com equilíbrio na rela o folhas/colmo/espigas, foi apresentado pelo híbrido G 1328. The objective of this work was to evaluate the total dry matter production (TDMP) of stem (DMs), leaves (DMl), ear (DMe), crude protein content (CPC), acid detergent fiber (ADF), plant height (PH) and stem/leaves relation (S/L) of the hybrids (Zea mays L.) AG 122, AG 519, C 525, C 805, D 170, D 771, G 600, G 1328, P 3041, P 3069, XL 520, XL 530, OC 705, FO 01. The results indicated that the hybrid FO 01 showed the highest dry matter production, the highest plant and stem production, but the smallest ear and leaves percentage, decreasing the quality of the original material. The higher productivity of hybrids was associated with a higher plant height and stem production on total dry matter. The hybrid G 1328 showed a good dry matter production with equilibrium in the relation leaves/stem/corn cob.
Produ??o e germina??o de sementes de cultivares de aveia sob irriga??o em Jaboticabal - SP
Seixas, Plaucius de Figueiredo;Moreira, Andréia Luciane;Gomide, Carlos Augusto de Miranda;Reis, Ricardo Andrade;Luca, Silvio de;
Ciência e Agrotecnologia , 2004, DOI: 10.1590/S1413-70542004000100008
Abstract: seed production, weight of one thousand seeds and seed germination of oat cultivars were evaluated in trials in 2000 and 2001. the experimental design was of randomized blocks with three repetitions. in the first year, the following cultivars were evaluated: iac-7, ufrgs-17, ufrgs-14, upf-16 and or-2, and in the second year: iac-7, ufrgs-17, upf-16, ufrgs-15 and ufp-19. seeding was done on 21 june 2000 and 30 may 2001. seed harvest was done at the stage hard grain and, subsequently, processed. cultivar iac-7 was the earliest one in both years, even with the increase in culture cycle for all cultivars during the second year. as with the weight of one thousand seeds, seed production and seed germination increased during the second year. although there were no significant differences among the cultivars in agricultural year 2001, the general aspect of cultivar ufrgs-17 was outstanding from the others, having high grain production and excellent seed germination on both year evaluated. great values for seed germination were found for both years, and statistical differences among the cultivars were observed only in the first year.
Características agron?micas e composi??o química de oito híbridos de sorgo [Sorghum bicolor (L.) Moench]
Pedreira, Márcio dos Santos;Reis, Ricardo Andrade;Berchielli, Telma Teresinha;Moreira, Andréia Luciane;Coan, Rogério Marchiori;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000500008
Abstract: this research was developed to evaluate the agronomic characteristics, chemical composition of the whole plants and their fractions of eight sorghum hybrids, to identify the adapted plants to dry environmental conditions and appropriated to silage production. the experiment was conducted according to a randomized block design, with eight treatments and three replications, to study the commercial hybrids ag-2005, br-700 and massa-03, and the non commercial hybrids 498111, 65e3, 698005, 698007 and 699005. there were no significant differences among hybrids in relation to the plant height, dry matter production and leaf proportion, it was observed highest stem content (43.3%) in the 498111 hybrid and lowest in the massa-03 (29.9%). the 65e3 showed highest panicle contents (43.2%), however the lowest value was observed in the 498111 hybrid (28.9%). the contents of dry matter, ashes, hemicellulose, neutral detergent insoluble nitrogen, acid detergent insoluble nitrogen and total digestible nutrients of the whole plant were similar among hybrids. it was observed different values of crude protein ( 6.5 to 8.8%), neutral detergent fiber (57.0 to 70.3%), acid detergent fiber (29.8 to 36.2%), cellulose (25.3 to 31.2%) and lignin (3.6 to 5.5%) of the hybrids. the content of soluble carbohydrates of hybrid 699005 (14.5%) was higher than the 698007 (9.6%). the hybrids showed differences on chemical composition of the leaf, stem, and panicle fractions. the dry matter and soluble carbohydrates contents of all hybrids were appropriate to the ensilage process. the average dry matter yield of all hybrids was 6.2 t/ha. this value was high considering the low rainfall during the experimental period. the cluster analyses suggest a group of the sorghum hybrids with higher dry matter production (dmp), lower panicle percentage, and tdn content, and others with lower dmp, but higher panicle percentage, and tdn values.
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