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Search Results: 1 - 10 of 185778 matches for " Marcelo de Andrade;Guim "
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Substitui??o do milho e do feno de capim-tifton por palma forrageira. Produ??o de proteína microbiana e excre??o de uréia e de derivados de purina em vacas lactantes
Oliveira, Veronaldo Souza de;Ferreira, Marcelo de Andrade;Guim, Adriana;Modesto, Elisa Cristina;Lima, Luiz Evandro;Silva, Fabiana Maria da;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000400025
Abstract: the objective of this trial was to evaluate the effect of replacing tifton hay and corn with forage cactus (opuntia ficus indica mill ) on microbial protein synthesis and efficiency and n metabolism in lactating holstein cows. diets contained (% of dm): 0, 12.0, 25.0, 38.0, or 51.0%) of forage cactus. five holstein cows were randomly assigned to treatments in a 5 x 5 latin square design. each experimental period lasted 17 days with 10 days for diet adaptation and seven days for data and sample collection. urinary volume was estimated based on creatinine excretion in spot urine samples obtained four hours after feeding. urinary volume (27.62 l), urinary excretion of uric acid (35.78 mmol/day) and allantoin (288.42 mmol/day), allantoin in milk (18.11 mmol/day), total allantoin (306.54 mmol/day), total excretion of purine derivatives (342.33 mmol/day), absorbed purines (350.03 mmol/day), microbial protein synthesis (1376.07g/day) and efficiency (115.38 g/kgndt) were not affected by increasing the levels of forage cactus in the diet. the urinary excretion of urea (mg/kg bw) and the concentrations of urea and urea-n in plasma (mg/dl) decreased linearly while the concentrations of urea and urea-n in milk were not affected when the levels of forage cactus were increased in the diet. corn can be completely replaced with forage cactus because microbial protein synthesis was not changed and urinary excretion of urea decreased linearly. however, tifton hay was necessary in the diet to maintain microbial production.
Substitui??o total do milho e parcial do feno de capim-tifton por palma forrageira em dietas para vacas em lacta??o: consumo e digestibilidade
Oliveira, Veronaldo Souza de;Ferreira, Marcelo de Andrade;Guim, Adriana;Modesto, Elisa Cristina;Lima, Luiz Evandro;Silva, Fabiana Maria da;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000600027
Abstract: the experiment was conducted to evaluate the intake and apparent digestibility of the nutrients in diets containing different levels (0, 12.0, 25.0, 38.0, and 51.0%) of forage cactus (opuntia ficus indica mill) in total replacement of corn (zea mays l.) and partial of tifton hay (cynodon spp). five holstein cows were assigned to a 5x5 latin square. the animals showed an average of 583 ± 7,07 kg bw and lactation period around 110 days. each experimental period lasted 17 days, 10 days for the adaptation of the animals to the diet and 7 days for data collecting. the dm intake (kg/day, %bw and g/kg0.75), and the intakes of om, ee, cp, total carbohydrate (tc), ndf, adf and tdn (kg/day) decreased linearly as forage cactus increased in the diet. however, nfc intake increased with the inclusion of forage cactus in the diet. apparent digestibilities of dm,om, ee, cp, tc and nfc were not influenced by the inclusion of the forage cactus in the diet. nevertheless, ndf apparent digestibility showed a linear decrease as forage cactus increased in the diet. the inclusion of forage cactus in diets showed negative effect on the nutrient intake and the ndf apparent digestibility.
Assessment of indicators and collection methodology to estimate nutrient digestibility in buffaloes
Soares, Luciana Felizardo Pereira;Guim, Adriana;Andrade Ferreira, Marcelo de;Modesto, Elisa Cristina;Batista, ?ngela Maria Vieira;Barros Sales Monteiro, Paulo de;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011000900023
Abstract: dry fecal matter production was estimated from neutral detergent indicators on indigestible fiber, indigestible acid detergent fiber, indigestible dry matter, incubated for 144 hours and 288 hours, as well as chromium oxide (cr2o3) and enriched and purified isolated lignin (lipe?) in two sampling schemes (3 and 5 days) on buffaloes. sample consisted of five castrated animals with average weight of 300 ± 0.6 kg fed on elephant grass cv cameroon (pennisetum purpureum). experimental design consisted of randomized blocks in subdivided plots. production of dry fecal matter was overestimated when using cr2o3, indigestible acid detergent fiber 144 hours, indigestible neutral detergent fiber 144 hours, indigestible neutral detergent fiber 288 hours and indigestible dry matter 144 hours, while indigestible acid detergent fiber 288 hours, indigestible dry matter 288 hours and lipe? did not differ from total collection. the same result was observed for apparent digestibility of nutrients. there was no difference in dry fecal matter production and digestibility between both collection periods of 3 and 5 days, demonstrating that a collection period of three days can be used to estimate dry fecal matter production in buffaloes. a three-day period of sample collection, in order to estimate dry fecal matter production and apparent digestibility coefficients, is therefore recommended. the use of lipe?, fibers in indigestible acid detergent and indigestible dry matter as indicators, both latter incubated for 288 hours, result in accurate estimates of dry fecal matter production in confined buffaloes, fed on a forage based diet.
Replacement of soybean meal by cottonseed meal in diets based on spineless cactus for lactating cows
Silva, Fabiana Maria da;Ferreira, Marcelo de Andrade;Guim, Adriana;Pessoa, Ricardo Alexandre Silva;Gomes, Luiz Henrique dos Santos;Oliveira, Júlio César Vieira de;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009001000020
Abstract: the objective of this study was to evaluate the replacement of soybean meal by cottonseed meal in the diet of dairy cows fed diets based on spineless cactus. five girolando lactating cows were used, with average live weight of 490 kg and average production of 11.5 kg of milk/day, distributed in a 5 × 5 latin square design (5 animals, 5 treatments and 5 experimental periods). each experimental period lasted 15 days, 10 days being for the adaptation of the animals to the diet and 5 days for data collection. the experimental diet consisted of spineless cactus (53%), sorghum silage (32%) and concentrate (15%). the cottonseed meal replaced 0, 25, 50, 75 and 100% of soybean meal in the concentrate. the intake, milk yield and composition were evaluated. the nutrients intake and digestibility were not affected by the treatments, with an average of 15.55 and 56.05; 13.8 and 59.31, 0.37 and 49.40, 5.32 and 30.95, 1.79 and 48.14; 9.94 and 54.31, 4.43 kg/day and 80.99%, for the dry matter, organic matter, ether extract, neutral detergent fiber, crude protein, total carbohydrates and non-fibrous carbohydrates, respectively. the total digestible nutrients were not affected (average of 8.30 kg/day). similarly, the milk yield and composition, fat corrected milk yield (4%), lactose, total solids, fat and protein were not affected by replacement (11.56, 11.41 kg milk/day and 4.45, 12.75, 3.95 and 3.42%, respectively). recommended the replacement of soybean meal by cottonseed meal for low production dairy cows.
Substitui??o total do milho e parcial do feno do capim-tifton por palma forrageira em dietas para vacas em lacta??o. Produ??o, composi??o do leite e custos com alimenta??o
Oliveira, Veronaldo Souza de;Ferreira, Marcelo de Andrade;Guim, Adriana;Modesto, Elisa Cristina;Arnaud, Bárbara Lucena;Silva, Fabiana Maria da;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000400024
Abstract: the objective of this trial was to evaluate the effect of replacing tifton hay and corn with forage cactus (opuntia ficus indica mill ) on milk production and composition and milk fatty acid profile in lactating holstein cows. animals averaged 583 ± 7.07 kg of body weight in the beginning of the trial and were fed diets containing (% of dm): 0, 12.0, 25.0, 38.0 or 51.0% of forage cactus. five holstein cows were randomly assigned to treatments in a 5 x 5 latin square design. each experimental period lasted 17 days with 10 days for diet adaptation and seven days for data and sample collection. milk production, 3.5% fat corrected milk, and milk fat content and yield were not affected by increasing the levels of forage cactus in the diet and averaged 20.65 kg/d, 19.76 kg/d, 3.73% and 0.745 kg/d, respectively. milk contents of capric, lauric, mirystic, linoleic, linolenic e arachydic acids were not changed when the levels of forage cactus were increased in the diet. however, milk contents of the medium-chain fatty acids palmytic and palmitoleic reduced linearly while the opposite was observed for the long-chain fatty acids estearic and oleic. although milk production and composition were not affected by replacing corn and tifton hay with forage cactus, significant changes were found in the milk profile of medium and long-chain fatty acids by increasing the proportion of forage cactus in the diet.
Nutritive value of diferents silage sorghum (Sorghum bicolor L. Moench) cultivares
Borba, Luis Felipe Pereira;Ferreira, Marcelo de Andrade;Guim, Adriana;Tabosa, José Nildo;Gomes, Luiz Henrique dos Santos;Santos, Viviany Lúcia Fernandes dos;
Acta Scientiarum. Animal Sciences , 2012, DOI: 10.4025/actascianimsci.v34i2.12853
Abstract: nutrition values of silages from different sorghum cultivars are evaluated. five 26-kg castrated crossbred lambs, housed in pens equipped with feces and urine collectors for the study of their metabolism, were employed in a 5 x 5 latin square experimental design. treatments consisted of silage from five different sorghum cultivars: ipa 1011 and ipa 2564 (grain sorghum), ipa 2502 (dual purpose sorghum), ipa fs-25 and ipa 467 (forage sorghum). protein level was corrected to 12% by adding a mixture of urea: ammonium sulfate (9:1). treatments ipa 1011, ipa 2564 and ipa 2502 provided high intake of dry matter, total carbohydrate and total digestible nutrients, and low intake of neutral detergent fiber. cultivars ipa 1011 and ipa 2564 provided high apparent crude protein digestibility coefficient, whereas cultivars ipa 1011 and ipa 2564 had high total digestible nutrient levels. all cultivars provided positive nitrogen. owing to nutrient intake and digestibility values, grain sorghum silages evidenced high potential in ruminant nutrition.
Substitui??o da palma-gigante por palma-miúda em dietas para bovinos em crescimento e avalia??o de indicadores internos
Torres, Luiz Carlos Leal;Ferreira, Marcelo de Andrade;Guim, Adriana;Vilela, Márcio da Silva;Guimar?es, Amanda Vasconcelos;Silva, Emmanuelle Cordeiro da;
Revista Brasileira de Zootecnia , 2009, DOI: 10.1590/S1516-35982009001100028
Abstract: the objective of this study was to evaluate the replacement of giant forage cactus (opuntia ficus indica mill) by small forage cactus (nopalea cochenillifera) in diets for growing cattle on the nutrient intake and digestibility. two incubation periods were also assessed (144 and 288 hours) to obtain the indigestible fractions of dry matter, neutral detergent fiber and acid detergent fiber. five holstein heifers were used, approximately 220 kg initial weight placed in a 5 × 5 latin square design and housed in individual covered, stalls with concrete floor and equipped with masonry feeders and individual drinkers. the experimental diets were based on forage cactus, sugarcane bagasse, soybean meal, urea and mineral mixture, at the proportion of 38.0, 42.0, 18.0, 0.5 and 1.5%, respectively, on dry matter bases, with 0, 25, 50, 75 and 100% of replacement of giant forage cactus by small forage cactus. the intakes and digestibility coefficients of dry matter, organic matter, crude protein, ether extract, total digestible nutrients, total carbohydrates, non-fiber-carbohydrates and neutral detergent fiber were not affected by the replacement. the indigestible dry matter (incubated for 144 hours), indigestible neutral and acid detergent fiber (incubated for 288 hours) made possible to estimate the fecal dry matter production and the dry matter digestibility similar to the total feces collection. the small forage cactus can fully replace the giant forage cactus and the indigestible dry matter incubated for 144 hours and the indigestibles neutral and acid detergent fiber incubated for 288 hours can be used in a digestibility study with ruminants.
Caracteriza??o do pasto de capim-buffel diferido e da dieta de bovinos, durante o período seco no sert?o de Pernambuco
Santos, Gladston Rafael de Arruda;Guim, Adriana;Santos, Mércia Virginia Ferreira dos;Ferreira, Marcelo de Andrade;Lira, Mário de Andrade;Dubeux Júnior, José Carlos Batista;Silva, Maria José da;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000200012
Abstract: the experiment aimed to determine the herbage mass and to evaluate the botanical and chemical composition of a stockpiled buffelgrass pasture during the dry season. visual estimates were accomplished for determination of the botanical composition. samples were cut for forage availability determination. the data were processed by the botanal program. three esophagus fistulated animals were used to evaluate the quality and botanical composition of the selected diet. on the pasture a total of 10 families, 19 genus and 19 species of plants were observed. the botanical components that showed the highest herbage mass and participation were buffel grass and "orelha-de-on?a" (macroptilium martii benth.), ranging from 1392 to 2750 kg dm/ha and 50% and, 1167 to 1215 kg dm/ha and 30%, respectively. the forage chemical composition ranged from 63.0 to 81.6 %, 3.3 to 5.2 %, 0.9 to 1.4 %, 69.3 to 76.0 %, 53.0 to 57.4 %, 5.2 to 8.9 %, 86.0 to 88.6 % and, 10.8 to 16.4 % for dry matter (dm), crude protein (cp), ether extract (ee), neutral detergent fiber (ndf), acid detergent fiber (adf), ashes (ash), total carbohydrates (tch) and, no fiber carbohydrates (nfc), respectively. extrusa chemical composition showed values ranging from 18.5 to 22.3 %, 4.5 to 5.6 %, 1.3 to 1.9 %, 52.0 to 75.0 %, 52.3 to 59.8 %, 9.4 to 11.4 %, 81.8 to 84.4 %, 6.8 to 20.6 % and, 45.7 to 49.1 % for dm, cp, ee, ndf, adf, ash, tch, nfc and, "in vitro" dry matter digestibility, respectively.
Protein requirements for females of Nellore, Nellore × Angus and Nellore × Simmental fed on two forage: concentrate ratios
Souza, Evaristo Jorge Oliveira de;Valadares Filho, Sebasti?o de Campos;Guim, Adriana;Valadares, Rilene Ferreira Diniz;Marcondes, Marcos Inácio;Ferreira, Marcelo de Andrade;Prados, Laura Franco;Benedeti, Pedro del Bianco;
Revista Brasileira de Zootecnia , 2012, DOI: 10.1590/S1516-35982012000300040
Abstract: this study aimed to determine the protein requirements for females of nellore, f1 nellore × angus and f1 nellore × simmental fed on two concentrate levels (30 and 50%). sixty heifers from three genetic groups with 18 months of age were used: 20 nellore, 20 nellore × angus and 20 nellore × simmental. twelve heifers of the reference group (four of each genetic group) were slaughtered at the beginning of the experiment. another 12 heifers (four of each genetic group) were fed on the level of maintenance and 36 heifers (12 animals of each genetic group) were kept in power system ad libitum with 30% (six of each group) or 50% (six of each group) dietary dry matter in concentrate. heifers were randomly assigned to six treatments in a 3 × 2 factorial arrangement (three genetic groups and two diets) with six replicates per treatment. nine more heifers (three from each genetic group) were used to estimate the apparent digestibility coefficients of food in a parallel experiment. a model was fitted according to the protein retained as function of the gain of empty body weight (ebw) and retained energy (re) to calculate the protein net requirements. to estimate the metabolizable protein requirements for maintenance the consumption of metabolizable protein was contrasted with ebw. the joint use of the equation net protein gain (npg) = 197.40 × ebwg - 11.14 × re is recommended to predict the protein net requirements for weight gain. protein and metabolizable protein net requirements for maintenance are 1.07 and 3.88 g/ebw0.75/day, respectively. the use efficiency of metabolizable protein for gain of all genetic groups is 37.04%.
Consumo e comportamento ingestivo de caprinos e ovinos alimentados com palma gigante (Opuntia ficus-indica Mill) e palma orelha-de-elefante (Opuntia sp.) = Intake and ingestive behavior of sheep and goats fed with cactus pear (Opuntia ficus-indica Mill) and prickly pear (Opuntia sp.)
Maria Caroline de Almeida Cavalcanti,?ngela Maria Vieira Batista,Adriana Guim,Mário de Andrade Lira
Acta Scientiarum : Animal Sciences , 2008,
Abstract: O presente trabalho teve por objetivo avaliar o consumo e comportamento ingestivo de caprinos e ovinos alimentados com palma Gigante (Opuntia ficus-indica Mill) e palma Orelhade-elefante (Opuntia sp.). Foram utilizados 20 animais mesti os, sendo dez caprinos e dez ovinos, alojados em galp o coletivo, contidos individualmente por meio de cordas, distribuídos em delineamento inteiramente casualizado, em um arranjo fatorial 2 x 2 (duas espécies animais e duas variedades de palma). As observa es comportamentais foram realizadas em intervalos de 5 min. por um período de 24h. Os consumos de matéria seca, extrato etéreo, fibra em detergenteácido, carboidratos totais e carboidratos n o-fibrosos foram menores (p < 0,05) quando os animais recebiam palma Orelha-de-elefante. N o houve efeito da variedade de palma, da espécie animal e da intera o espécie animal x variedade de palma (p > 0,05) sobre o tempo gasto comalimenta o e eficiência de alimenta o. O tempo gasto com rumina o foi maior para a dieta com palma Gigante, consequentemente os animais da dieta com palma Orelha-de-elefante permaneceram mais tempo em ócio. Comparando as espécies caprina e ovina, verificou-se que aeficiência de rumina o, tanto de MS quanto de FDN, foi maior para a espécie ovina. Os animais gastaram mais tempo ruminando deitados do que em pé, mas n o foi verificada diferen a quanto ao lado escolhido para deitarem. The objective of this study was to evaluate the intake and ingestive behavior of sheep and goats fed with cactus pear (Opuntia ficus-indica Mill) and prickly pear (Opuntia sp.). Twenty crossbred animals – 10 sheep and 10 goats – were used. They were lodged in a collective shed, contained individually with ropes, distributed using a completely randomized design, and treated with a 2 x 2 factorial arrangement (2 animal species and 2 varieties of cactus). Behavioralobservations were made at five-minute intervals during a 24-hour period. Dry matter, ether extract, acid detergent fiber, total carbohydrate and non-fibrous carbohydrate intake were reduced (p < 0.05) by prickly pear. There was no effect from cactus variety, animal species or animal species x cactus variety interaction (p > 0.05) on feeding time and feeding efficiency. The time spent with rumination was greater for the diet with prickly pear, and the animals on the prickly pear diet remained more time idle. Comparing goats and sheep species, it was verified that the rumination efficiency, for both DM and NDF, was greater for sheep species. The animals spent more time ruminating lying than standing, but no difference
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