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Search Results: 1 - 10 of 77 matches for " Berchielli "
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Avalia??o de indicadores internos em ensaios de digestibilidade
Berchielli, Telma Teresinha;Andrade, Pedro de;Furlan, Claudia Lopes;
Revista Brasileira de Zootecnia , 2000, DOI: 10.1590/S1516-35982000000300027
Abstract: the digestibilities of dry matter (dm), crude protein (cp), ether extract (ee), neutral detergent fiber (ndf), gross energy (ge) and total digestible nutrients (tdn) were determined by using four internal markers (acid detergent fiber - adf and lignin and acid insoluble ash - aia). the three first markers were submitted to in vitro disappearance for three and six days and the results were compared with data determined by total feces collection. the nutrient digestibility estimated by ndf, adf and lignin incubated during six days did not differ from that using total feces collection, while the markers incubated during three days and aia subestimated the digestibility of nutrients, due to their lower recovery.
Avalia o de indicadores internos em ensaios de digestibilidade
Berchielli Telma Teresinha,Andrade Pedro de,Furlan Claudia Lopes
Revista Brasileira de Zootecnia , 2000,
Abstract: Foram determinadas as digestibilidades de matéria seca (MS), proteína bruta (PB), extrato etéreo (EE), fibra em detergente neutro (FDN), energia bruta (EB) e nutrientes digestíveis totais (NDT), utilizando-se quatro indicadores internos (FDN - fibra detergente neutro, FDA - fibra detergente ácido, lignina e CIA - cinza insolúvel em ácido). Os três primeiros indicadores foram submetidos à digestibilidade in vitro por três e seis dias, e os resultados foram comparados com dados determinados por intermédio da coleta total de fezes. Verificou-se que a digestibilidade dos nutrientes, quando estimada por intermédio dos teores de FDN, FDA e lignina incubados durante seis dias, n o diferiu significativamente da digestibilidade dos nutrientes determinada pela coleta total, enquanto os indicadores incubados durante três dias e a CIA subestimaram a digestibilidade, devido à baixa recupera o destes.
Efeito dos taninos condensados de forrageiras nativas do semi-árido nordestino sobre o crescimento e atividade celulolítica de Ruminococcus flavefaciens FD1
Guimar?es-Beelen, P.M.;Berchielli, T.T.;Buddington, R.;Beelen, R.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2006, DOI: 10.1590/S0102-09352006000500029
Abstract: the effects of tannin levels in three brazilian browse legumes mimosa hostilis (jurema preta), mimosa caesalpinifolia (sabiá) e bauhinia cheilantha (mororó) on growth and endoglucanase activity of ruminococcus flavefaciens fd1 were evaluated. isolated cultures of ruminococcus flavefaciens fd1 were used to assess cellular growth, 1, 4-b-endoglucanase activity, and cellulose digestion in the presence of 50, 100, 200 and 400μg/ml of purified tannins from the three legume species. growth of fd1, 1, 4-b-endoglucanase activity and cellulose digestion were highly inhibited by the presence of purified tannins of the three legume species. however, the intensity of inhibition varied in according to the legume species and tannin concentration.
Avalia??o da Polpa de Citros Peletizada como Material para Cama de Frangos de Corte
Sorbara, JOB;Rizzo, MF;Laurentiz, AC;Schocken-Iturrino, RP;Berchielli, TT;Moraes, VMB;
Revista Brasileira de Ciência Avícola , 2000, DOI: 10.1590/S1516-635X2000000300010
Abstract: the object of this experiment was to evaluate the citrus pulp-pelleted (cpp) as a broiler litter and their chemical composition. the experiment used 1792 one day-old males, and it was divided into two phases: 1 to 21 and 35 to 49 days of age. the experimental design was a factorial 2x2x2 with four replicates. the factors were: type of broiler litter (cpp and wood shaving), broiler litter depth (7 and 10 cm) and stocking densities (10 and 14 broilers/m2). the parameters analyzed were: weight gain (wg), feed consumption(fc), feed conversion, incidence of breast blister and foot pad lesion, survivability, dry matter and ph of the broiler litter (21 and 49 days old). to evaluate the possible alteration in the litter chemical composition weende and van soest analyses was performed and gross energy was also determined. independently of depth of litter, the broilers reared on cpp and in the density of 14 broiler/m2 showed worse results to wg and fc of 35 to 49 days of age. the results of wg and fc were more affected by the density than the types of broiler litter. there was no significant difference among the treatments for footpad lesion and for lesions of breast blister. the dry matter was higher in cpp than wood shaving. the ph of the broiler litter of cpp was smaller than wood shaving. the chemical analysis showed significant differences due to treatment (p<0.05) for all variables except to mineral matter (mm), with no significant differences between the means. best values of cp, ndf, adf were obtained with the cpp used as material for broiler litter.
Características da carca?a e da carne de novilhos mantidos em pastagem de capim-marandu submetidos a diferentes estratégias de suplementa??o
Canesin, Roberta Carrilho;Berchielli, Telma Teresinha;Andrade, Pedro de;Faturi, Cristian;
Revista Brasileira de Zootecnia , 2006, DOI: 10.1590/S1516-35982006000800024
Abstract: the objective of this trial was to evaluate quantitative and qualitative traits of carcass and meat from grazing steers submitted to one of the following three supplementation strategies: daily supplementation (ds), alternate days supplementation (as) or monday to friday supplementation (mfs). twenty-four crossbred steers (bos indicus x bos taurus) averaging 230 kg of initial body were used in a completely randomized block design (three treatments and eight replicates/treatment). animals were maintained in pasture of brachiaria brizantha cv. marandu from the rainy season of 2003 to the dry and rainy seasons of 2004, when they reached the expected slaughter weight. the quantitative and qualitative traits of carcass and meat were not affected by the different supplementation strategies. slaughter body weight, hot carcass yield, loin eye area, and fat thickness averaged, respectively, 468.21 kg, 50.26%, 59.67 cm2, and 3.3 mm across treatments. overall, the meat was classified as tender with juiciness and palatability slightly above the average.
Avalia??o da queima e da adi??o de milho desintegrado com palha e sabugo na ensilagem de cana-de-a?úcar
Bernardes, Thiago Fernandes;Reis, Ricardo Andrade;Siqueira, Gustavo Rezende;Berchielli, Telma Teresinha;Coan, Rogério Marchiori;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000200001
Abstract: this research aimed to evaluate the effects of burning and the use of dry additive on the sugar cane silage fermentative pattern. six treatments were tested: natural or burned sugarcane, associated to three supplementation levels: 0, 50 or 100 g/kg of dehydrated corn grain, cob, and straw (cgcs) based on forage fresh mater. the following response variables were determined in the forage: dm, cp, acid detergent insoluble nitrogen (adin), ndf, adf, cellulose, hemicellulose and lignin concentrations. considering the fermentative traits, soluble carbohydrate levels, buffering capacity, ph, ammonia nitrogen and ethanol levels were measured. the cgcs inclusion increased dm concentration and slightly reduced ethanol and n-nh3 levels in silages, but did not affect ph or yeast growth. burning reduced dm and n-nh3 concentration, as well as increased ethanol levels and yeast growth. ethanol production in sugarcane silage was not controlled by using dry additive or burning.
Desempenho de bovinos de corte mantidos em pastagem de capim-marandu submetidos a diferentes estratégias de suplementa??o no período das águas e da seca
Canesin, Roberta Carrilho;Berchielli, Telma Teresinha;Andrade, Pedro de;Reis, Ricardo Andrade;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000200019
Abstract: the objective of this study was to evaluate weight gain of beef steers grazing brachiaria brizantha cv. marandu and receiving one out of three different supplementation strategies during the rainy season of 2003 and the dry and rainy seasons of 2004. twenty-four crossbreed steers averaging 230 kg of initial body weight were assigned to one of the following supplementation strategies: daily supplementation (ds), supplementation in alternated days (ad), or supplementation from monday to friday (mf) in a completely randomized design (8 replicates/treatment). animals were individually weighted with no fasting every 28 days. there were no differences in weight gain among the different supplementation strategies averaging 0.76, 0.74, and 0.71 kg/day during the rainy season of 2003; 0.61, 0.62, and 0.57 kg/day during the dry season of 2004; and 0.57, 0.54, and 0.51 kg/day during the rainy season of 2004, respectively, for ds, ad and mf treatments. it can be concluded that reducing supplementation frequency may decrease feeding and labor costs with no negative impact on animal performance.
Degradabilidade da Matéria Seca e Fibra em Detergente Neutro da Cana-de-a?úcar (Saccharum spp) com Diferentes Fontes de Proteína
Carmo, Carolina de Almeida;Berchielli, Telma Teresinha;Andrade, Pedro de;Zeola, Nivea Maria Brancacci Lopes;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000800023
Abstract: five rumen fistulated steers were used to study sugar cane degradation with several protein sources through in situ method. the treatments were sugar cane and urea; sugar cane and soybean meal; sugar cane, soybean meal and urea; sugar cane and corn gluten meal; sugar cane, corn gluten meal and urea; and at 3, 6, 12, 24, 48, 72, 96 and 120 hours of incubation. after the incubation period, ammonia concentration and ph were determined in the ruminal fluid, sampled at times of 0, 3, 6, 9, 12, 15, 18 and 21 hours after feeding. randomized blocks, with protein sources and times in split-plot scheme, was used. the ammonia concentration was higher in treatments with high quantity of degradable protein. however, it was observed no variation for treatments. ph data showed significant effect with higher values for treatments with higher quantity of degradable protein. no significant differences was observed were observed for treatments, just for time on residuals of dry matter and neutral detergent fiber, contradicting the theory of ration formulation systems to attend the degradable protein allowances to maximize fiber degradation.
Digestibilidade e degradabilidade de ra??es à base de milho desintegrado com palha e sabugo em diferentes graus de moagem
Paziani, Solidete de Fátima;Berchielli, Telma Teresinha;Andrade, Pedro de;
Revista Brasileira de Zootecnia , 2001, DOI: 10.1590/S1516-35982001000600033
Abstract: this work was carried out to evaluate the digestibility, using cr2o3 and indigestible neutral detergent fiber (indf), as markers, and also the degradability using ground ear corn (gec). six treatments were used in a factorial design, with three milling degrees (3/8", 9/16" and 3/4") of ground ear corn and peanut meal or corn gluten feed as protein sources. the milling degrees of ground ear corn did not have effect on ph, n-nh3 , digestibility (dry matter - dm, crude protein - cp, extract ether extract - ee, starch, neutral detergent fiber - ndf, acid detergent fiber - adf) and ruminal degradability for dm and starch. digestibility coefficients differed between two markers and were higher for cr2o3. there was significant interaction for ph and n-nh3 between protein sources and milling degree, but only on 9/16", with lowest ph value for peanut meal and lowest n-nh3 concentration for corn gluten feed. there was no effect of milling degree on rumen degradability of dry matter, but there was protein sources effect, and the degradability was higher on corn gluten feed treatments. the starch degradability of gec plus protein source did not differ between protein sources, but differed when only gec on nylon bags was used, the starch degradability was higher in corn gluten feed treatments.
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.
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