21 documents found, page 1 of 3
Nutritional diversity of Brachiaria ruziziensis clones
Moreira,Ellen de Almeida; Souza,Shirley Motta de; Ferreira,Alexandre Lima; Tomich,Thierry Ribeiro; Azevêdo,José Augusto Gomes; Souza Sobrinho,Fausto deABSTRACT: The aim of this study was to evaluate the nutritional diversity of Brachiaria ruziziensis clones through chemical composition and in vitro kinetics of ruminal fermentation. Twenty three clones of Brachiaria ruziziensis were used (15, 16, 46, 174, 411, 590, 651, 670, 768, 776, 844, 859, 950, 965, 970, 975, 1067, 1093, 1296, 1765, 1806, 1894 and 1972) and Brachiaria ruziziensis cv. ‘Kennedy’, Brachiaria...
Silage quality of six sorghum cultivars for sheep
Oliveira,Brena Santos; Pereira,Luiz Gustavo Ribeiro; Azevêdo,José Augusto Gomes; Rodrigues,José Avelino Santos; Velasco,Frederico OsórioAbstract: The objective of this work was to evaluate the silage quality, fermentation profile, intake, and digestibility of six sorghum cultivars for sheep feeding. 'SF 15', 'IPA 2502', 'BRS 655', 'BR 601', 'BRS 506', and 'Sudão' were cultivated in randomized complete block designs with five replicates, harvested, and ensiled when plants reached the soft-dough grain stage. Silage quality was determined in labor...
Parâmetros ruminais e balanço de nitrogênio em bovinos alimentados com silagem ...
Vieira,Pablo Almeida Sampaio; Azevêdo,José Augusto Gomes; Silva,Fabiano Ferreira da; Pereira,Luiz Gustavo Ribeiro; Neves,André Luiz AlvesRESUMO: Avaliou-se o efeito da inclusão da silagem da raiz de mandioca sobre os parâmetros ruminais e o balanço de compostos nitrogenados em bovinos de origem leiteira. Utilizou-se cinco animais, canulados no rúmen, não lactantes e com peso corporal médio de 389 kg. Os animais foram distribuídos em um quadrado latino cinco x cinco, sendo cinco dietas com níveis de inclusão (0,00; 3,62; 7,23; 10,84; e 14,54% da ...
Agronomic evaluation of 32 sorghum cultivars in the Brazilian semi-arid region
Perazzo,Alexandre Fernandes; Carvalho,Gleidson Giordano Pinto de; Santos,Edson Mauro; Pinho,Ricardo Martins Araujo; Campos,Fleming SenaThe objective of this study was to evaluate agronomic characteristics of 32 sorghum cultivars (Sorghum bicolor(L). Moench) in the Brazilian semi-arid region. The experimental design was set up in randomized blocks with three replications. Treatments were the 32 sorghum cultivars. The evaluated variables were: plant height, stem diameter, tiller density, number of green leaves per tiller, average leaf length, dr...
Evaluation of mathematical models to describe growth of grazing young bulls
Fernandes,Henrique Jorge; Tedeschi,Luis Orlindo; Paulino,Mário Fonseca; Detmann,Edenio; Paiva,Luisa Melville; Valadares Filho,Sebastião de CamposThe objective of this study was to evaluate the use of different mathematical models to describe growth of grazing beef cattle. Data of 20 Nellore bulls with initial weight of 129±28.1 kg and final weight of 405±62.0 kg were used. The animals were randomly divided into four plots and placed on B. decumbens Stapf pastures. Three plots received concentrate supplement with different protein profiles and the fourth...
Nutritional divergence in genotypes of forage peanut
Ferreira,Alexandre Lima; Maurício,Rogério Martins; Pereira,Luiz Gustavo Ribeiro; Azevêdo,José Augusto Gomes; Oliveira,Leandro SilvaThe objective of this study was to evaluate the nutritional divergence between ten genotypes of forage peanut, based on chemical composition as well as fermentation and in vitro degradation kinetic characteristics. Treatments consisted of ten genotypes of Arachis pintoi, namely eight accessions (31135, 30333, 15121, 31828, 15598, 31534, 13251 and 31496) and two cultivars (cv. Belmonte and cv. Amarillo). The gen...
Divergence of the fermentative and bromatological characteristics of 25 sorghum...
Silva,Thiago Carvalho da; Santos,Edson Mauro; Macedo,Carlos Henrique Oliveira; Lima,Milena Araújo de; Bezerra,Higor Fábio CarvalhoThe objective of this study was to evaluate the divergence of bromatological and fermentative characteristics of silages of 25 sorghum (Sorghum bicolor L. Moench) hybrids. The experimental design was completely randomized with 25 treatments and four replications. The mean values of pH differed with variation from 3.45 to 3.87 for hybrids 866005 and 870051, respectively, and the mean pH value was 3.66. The avera...
In situ and in vitro degradation kinetics and prediction of the digestible neut...
Azevêdo,José Augusto Gomes; Valadares Filho,Sebastião de Campos; Detmann,Edenio; Pina,Douglas dos Santos; Paulino,Mário FonsecaThe objective of this study was to evaluate the in situ and in vitro degradation kinetics and to predict the digestible neutral detergent fiber (dNDF) from the incubation times; in situ and in vitro degradation kinetic parameters; and equations fitted for agricultural and agro-industrial byproducts. Byproducts from pineapple, cocoa, palm kernel, corn gluten meal, common bean, sunflower, guava, cassava bark, cas...
Predição de frações digestíveis e valor energético de subprodutos agrícolas e a...
Azevêdo,José Augusto Gomes; Valadares Filho,Sebastião de Campos; Detmann,Edenio; Pina,Douglas dos Santos; Pereira,Luiz Gustavo RibeiroObjetivou-se avaliar equações adotadas pelo NRC e Detmann para estimar o conteúdo energético de subprodutos agrícolas e agroindustriais. Foram avaliados subprodutos de abacaxi, cacau, dendê, feijão, girassol, goiaba, mandioca casca, mandioca haste, mandioca rama, mamão, manga, maracujá, nabo e farelo de glúten de milho. Todos os animais receberam silagem de milho e mistura ureia/sulfato de amônio (9:1) para que...
Níveis de inclusão e tempo de exposição da cana-de-açúcar ao óxido de cálcio so...
Pina,Douglas dos Santos; Valadares Filho,Sebastião de Campos; Tedeschi,Luis Orlindo; Barbosa,Analívia Martins; Azevêdo,José Augusto GomesAvaliou-se nesta pesquisa o efeito da inclusão de óxido de cálcio (cal) e dos tempos de exposição da cana-de-açúcar à cal sobre o desempenho de novilhas Nelore, a digestibilidade dos componentes da dieta e a síntese de proteína microbiana ruminal (PBMic) e comparou-se o dióxido de titânio ao óxido crômico para estimar o consumo individual de concentrado. Utilizaram-se 30 fêmeas Nelore com aproximadamente 24 mes...