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Search Results: 1 - 10 of 176960 matches for " Fabiana Kellermann de;Neves "
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Avalia??o da mistura de cultivares de aveia preta (Avena strigosa Schreb) com azevém (Lolium multiflorum Lam.) sob pastejo
Macari, Stefani;Rocha, Marta Gomes da;Restle, Jo?o;Pilau, Alcides;Freitas, Fabiana Kellermann de;Neves, Fabio Pereira;
Ciência Rural , 2006, DOI: 10.1590/S0103-84782006000300028
Abstract: this work aimed at evaluating the production of beef heifers in two cultivars of black oats (avena strigosa schreb): 'comum' and 'iapar 61' mixed with italian ryegrass (lolium multiflorum lam). the variables evaluated were: forage mass (fm), forage on offer (fo), daily accumulation of dry matter (fad), stocking rate (sr), average daily gain (adg), live weight gain (lwg), crude protein (cp) and in vitro organic matter digestibility (ivomd). no effects (p>0.05) were detected on fad, sr, dap, lwg and cp for the two cultivars. the ivomd of 'iapar 61' presented highest values during a more extended period in growing season of pasture. the 'iapar 61' cultivar can be indicated for use under grazing in rio grande do sul state.
Suplementos energéticos para recria de novilhas de corte em pastagens anuais: análise econ?mica
Santos, Davi Teixeira dos;Rocha, Marta Gomes da;Genro, Teresa Cristina Moraes;Quadros, Fernando Luiz Ferreira de;Freitas, Fabiana Kellermann de;Roman, Juliano;Neves, Fabio Pereira;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000900023
Abstract: an economic evaluation was accomplished of two experiments with intensive feeding systems for rearing of beef heifers weaned with 60-90 days. in experiment 1, the heifers reared in pearl millet pasture, exclusively under grazing (past1); supplemented with milled corn grain (past1/c) or supplemented with pellet citric pulp (past1/p). in experiment 2, the heifers were reared in oat plus italian ryegrass pasture without supplementation to the animals (past2); supplemented with milled corn grain (past2/c) or supplemented with soy hull (past2/h). with the results of animal production per hectare and composition of the costs was realized an evaluation of the direct financial response of the studied feeding systems. based on the live weight of the heifers at twelve months of age a bioeconomic analysis of the employed technologies was presented. in experiment 1, the milled corn grain supplemented presented financial loss, while other systems just only covered costs, without surplus gross margin. in experiment 2, the corn grain system covered only costs, and the exclusive use of the pasture and the soy hull supplementation provided satisfactory values of gross margin for hectare. the increase of birth rate from 50 to 80% or the reduction of the age at first mating of the heifers from three to two years could reduce, respectively, in 62 and 23% the number of unproductive females in the herd for each 100 pregnant cows. these practices present potentiality to reduce this number of animals in 74%, when accomplished jointly.
Suplementa??o energética na recria de fêmeas de corte em pastagem cultivada de inverno: dinamica da pastagem
Freitas, Fabiana Kellermann de;Rocha, Marta Gomes da;Brondani, Ivan Luiz;Restle, Jo?o;Neves, Fabio Pereira;Roso, Dalton;Costa, Vagner Guasso da;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000600028
Abstract: the objective of this trial was to study the dynamics of pasture containing black oat (avena strigosa schreb) plus ryegrass (lolium multiflorum lam) on beef heifers receiving different levels of supplementation. the following treatments were used: 'no supplement'- animals in black oat plus ryegrass pasture; 'increasing' - animals in black oat plus ryegrass pasture and fed increasing levels of supplement: 0.3; 0.6; 0.9; and 1.2 to 1.5% of body weight (bw) during the pasture cycle; 'fixed' - animals in black oat plus ryegrass pasture and fed 0.9% of bw as supplement during the entire pasture cycle; or 'decreasing' - animals in black oat plus ryegrass pasture and fed decreasing levels of supplement: 1.5; 1.2; 0.9; and 0.6 to 0.3% of bw during the pasture cycle. the supplement contained only wheat bran. the following variables were measured: forage yield, rate of daily accumulation of dm, forage allowance, green leaf allowance, green forage mass, and leaf:stem ratio. oat leaf, oat stem, ryegrass leaf, ryegrass stem, and dead material all expressed as a percentage of fm were also evaluated. the nutritive value of the forage apparent consumed by the heifers was determined through measurements of contents of crude protein (cp), 'in vitro' organic matter digestibility, total digestible nutrients, and neutral detergent fiber. although pasture cycle did affect the studied variables, the opposite was observed with different levels of supplementation in the current trial.
Alternativas de utiliza??o da pastagem hibernal para recria de bezerras de corte
Rocha, Marta Gomes da;Restle, Jo?o;Frizzo, Adriana;Santos, Davi Teixeira dos;Montagner, Denise Baptaglin;Freitas, Fabiana Kellermann de;Pilau, Alcides;Neves, Fábio Pereira;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000200017
Abstract: the experiment aimed to evaluate animal performance and economic return in oats (avena strigosa schreb) plus italian ryegrass (lolium multiflorum lam) pasture subjected at three systems of utilization. the treatments used were: 1. pasture of oat + italian ryegrass + 300 kg/ha of nitrogen-'nitrogen'; 2. pasture of oat + italian ryegrass + supplementation-'supplement' and 3. pasture of oat + italian ryegrass + arrowleaf clover-'clover'. the experimental animals were ninety-four beef heifers of charolais breed and charolais-nellore crosses, with initial weight and age of 197 kg and nine months, respectively. the continuous grazing method with variable stocking rate was used. the supplement utilized was ground sorghum, at quantity of 1% of live weight (lw). the score of body condition (bc), average daily gain (adg), stocking rate (sr), live weight gain per ha (lwg) and economic return (er) from treatments were evaluated. the greater bc, sr and lwg were obtained on 'supplement', with values of 3.5, 1360.1 kg of lw/ha and 602.8 kg of lw/ha, respectively. the total cost and net income per treatment were r$ 687.15 and 194.28; 881.49 and 113.13; 574.69 and 226.22 for 'nitrogen', 'supplement' and 'clover', respectively. the treatment 'clover' presented the best ratio, with return of r$ 1.39 for each one real invested. in biological values, utilization of oat and ryegrass pasture for beef heifers, without impairment of adg, greater stocking rate and production per area are obtained using energy supplementation.
Efeito de níveis de suplementa??o sobre o comportamento ingestivo de bezerras em pastagem de aveia (Avena strigosa Schreb.) e azevém (Lolium multiflorum Lam.)
Bremm, Carolina;Rocha, Marta Gomes da;Restle, Jo?o;Pilau, Alcides;Montagner, Denise Baptaglin;Freitas, Fabiana Kellermann de;Macari, Stefani;Elejalde, Denise Adelaide Gomes;Roso, Dalton;Roman, Juliano;Guterres, éverton Pujol;Costa, Vagner Guasso da;Neves, Fábio Pereira;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000200005
Abstract: the ingestive behavior of beef heifers when submitted to different energy supplementation levels was evaluated. heifers grazing italian ryegrass (lolium multiflorum lam.) and black oat (avena strigosa schreb) pasture, were supplemented with wheat bran, supplied daily at 2 p.m. at levels of 0; 0.5; 1.0; 1.5% of live weight. the activities of grazing, rumination, idle and trough permanence, were recorded by visual observation, at a ten minute intervals, in four periods of 24 hours. for each supplementation level were allocated six animals of genetic groups charolais, 3/4charolais/nellore and 5/8nellore/charolais, with eight months of age and 158 kg of initial weight. supplemented animals reduced grazing time, compared with no supplemented animals, without changing estimated pasture consumption. animals supplemented at 1.5% of live weight, spent longer time at trough and showed a higher visiting frequency. the supplementation levels did not interfere in rumination and idle times.
Produ??o de forragem e produ??o animal em pastagem com duas disponibilidades de forragem associadas ou n?o à suplementa??o energética
Pilau, Alcides;Rocha, Marta Gomes da;Restle, Jo?o;Freitas, Fabiana Kellermann de;Roso, Dalton;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000400006
Abstract: the trial was conducted to evaluate two forage availabilities (1.200 and 1.500 kg/ha of dry matter [dm]) and energy supplementation of winter pasture on herbage and animal yields. the pasture was a mixture of oat (avena strigosa schreb) + italian ryegrass (lolium multiflorum lam). ninety charolais and charolais crossbred nellore heifers, with initial live weight of 164 kg, were submitted to the following treatments: lfa - low forage availability; hfa - high forage availability; lfas - low forage availability + supplementation; hfas - high forage availability + supplementation. the daily supplementation of ground sorghum corresponded to 0.7% body weight (bw). the variables studied were forage accumulation rate (far), stocking rate (sr) and live weight gain (lwg). forage availability and supplementation did not affect far, which averaged 45.53 kg/ha dm. the average sr in dfa, 862 kg/ha of bw, was quite constant during pasture grazing cycle. the sr was extremely variable in lfas, hfa and lfas treatments, being greatest in lfas treatment after 08/26. body weight gain per hectare was not affected by forage availability but increased by 59.4% in response to pasture supplementation.
Factors Associated with Late Diagnosis of Oral Cancer  [PDF]
Jerlucia Cavalcanti das Neves, Lívia Soraya Toledano, Fabiana Moura da Motta Silveira, Paulo Sávio Angeiras de Góes
International Journal of Clinical Medicine (IJCM) , 2015, DOI: 10.4236/ijcm.2015.62015
Abstract:
Objective: The aim of the present study was to determine associations between the late diagnosis of oral cancer and demographic/clinical factors. A quantitative cross-sectional study was carried out in 2007. Material and Method: Oral tumors were recorded based on the TNM staging system, with T1 and T2 considered early diagnosis and T3 and T4 considered late diagnosis. Results: Patient age ranged from 30 to 105 years (mean: 64.7). Just over half of the patients (54.9%) resided in urban areas and approximately 1/4 (25.7%) had an agricultural occupation. The majority had smoking habits (89.9%) and consumed alcohol (62.5%). The most frequent tumor site was the tongue (42.4%), followed by the hard palate (19.2%) and lip (12.2%). The majority (70.1%) were in advanced stages (III and IV). A greater percentage of smokers were in advanced stages than non-smokers. The percentage of cases in the early stages was lowest when the tumor was located in the tongue (14.1%) and highest when located in the buccal mucosa (80.0%). Conclusion: The main causes of the late diagnosis of oral cancer are insufficient training on the part of physicians and dentists in the field of pathology, delays on the part of patients in seeking medical assistance and deficient access to quality medical care, reflecting the absence of preventive public health programs and an effective healthcare system.
Desenvolvimento de novilhas de corte recebendo ou n?o suplementa??o energética em pastagem com diferentes disponibilidades de forragem
Pilau, Alcides;Rocha, Marta Gomes da;Restle, Jo?o;Silva, José Henrique Souza da;Freitas, Fabiana Kellermann de;Macari, Stefani;
Revista Brasileira de Zootecnia , 2005, DOI: 10.1590/S1516-35982005000500008
Abstract: the effect of two herbage masses (hm) (1,200 or 1,500 kg/ha of dry matter - dm) and use of energy supplementation on performance of beef heifers grazing oat (avena strigosa schreb) plus annual ryegrass (lolium multiflorum lam) was evaluated. the heifers were assigned to the following treatments: lhmns - low herbage mass, no supplementation; hhmns - high herbage mass, no supplementation; lhms - low herbage mass + supplementation;hhms - high herbage mass + supplementation. the supplement utilized was ground sorghum grain, at the level of 0.7% of body weight (bw) per day. the grazing method was continuous with variable stocking rate; there were three replications per treatment combination. the variables evaluated were: forage allowance (fa), average daily weight gain (adg), body condition (bc), body weight of animals at 12 months of age (blw), crude protein and 'in vitro' digestibility of hand plucked herbage samples. the fa in hhm was greater than in lhm treatment, with values of 11 and 8 kg of dm/100 kg of bw, respectively. supplementation affected adg and bc. the adg were 0.778 and 0.559 kg/animal/day for supplemented and not supplemented heifers, respectively. the bc increased linearly during the grazing period. supplemented heifers body condition increased by 0.9 points (r2=96%) and those exclusively on pasture by 0.4 points (r2=74%), with lw gains of 115 and 187 kg for each additional point of bc. decrease of forage mass from 1.500 to 1.200 kg/ha dm did not affect heifer performance. supplemented animals had higher body weight gain and body condition than animals exclusively on pasture.
Parametros produtivos de uma pastagem temperada submetida a alternativas de utiliza??o
Rocha, Marta Gomes da;Montagner, Denise Baptaglin;Santos, Davi Teixeira dos;Freitas, Fabiana Kellermann de;Pilau, Alcides;Frizzo, Adriana;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000600005
Abstract: this trial was developed with aim of evaluating the productive parameters of a pasture of oat (avena strigosa schreb) and italian ryegrass (lolium multiflorum lam.) submitted to alternatives of utilization. the treatments were: 1 'supplement': pasture of oat + ryegrass + animals fed energy supplementt in a daily quantity of 1.0% of live weight (lw) with nitrogen (n) fertilization of 150 kg/ha; 2 'nitrogen': pasture of oat + ryegrass with n fertilization of 300 kg/ha; 3 'pasture': pasture of oat + ryegrass with n fertilization of 150 kg/ha. the experimental animals were ninety-four beef heifers of the breed charolais and their crosses with nellore, with initial weight of 197 kg. the continuous grazing method with variable stocking rate was used. the herbage mass (hm), accumulation daily rate (adr), total production of forage (tpf), herbage losses (hl) in kg/ha of dry mater (dm) and in percent of live weight (%lw) were evaluated. in the botanical composition of pasture, blade leaf of oat mass (blm), blade leaf of ryegrass mass (blr), stem mass (sm), ryegrass inflorescence mass (rim) and dead material mass (dmm) were evaluated. the green material availability (gma) and leaf blade availability (lba) were evaluated by using hm. there was not observed difference among treatments evaluated for hm, gma, adr tpf and hl in kg/ha of dm and %lw. the treatments nitrogen and supplement presented greater contribution of green leaf than pasture treatment.
Suplementa??o energética na recria de bezerras de corte mantidas em pastagem de inverno
Frizzo, Adriana;Rocha, Marta Gomes da;Restle, Jo?o;Montagner, Denise Baptaglin;Freitas, Fabiana Kellermann de;Santos, Davi Teixeira dos;
Revista Brasileira de Zootecnia , 2003, DOI: 10.1590/S1516-35982003000300016
Abstract: this work was carried outo to evaluate the effect of levels of energetic supplementation in productive and reproductive performance of sixty-four charolais heifers and their crosses with nellore, mantained in cultivated pasture of black oat (avena strigosa schreb) plus italian ryegrass (lulium mulktiflorum lam.). the treatments considered supplementation of 0; 0.7 and 1.4% of the live weight (lw)/day of rice bran associated with citric pulp, in the proportion of 1:1. a continuous grazing system with variable stocking rate was used, to maintain 1500 kg/ha of dm in herbage mass in all treatments. the following parameters were evaluated: average daily gain, stocking rate, live weight gain, body condition, pelvic area, weight at puberty and age at puberty, hip height and estimated intake of dm. the supplementation increased average daily gain, stocking rate and live weight gain. heifers kept only on pasture had lower body conditions and showed lower heat percentage than heifers supplemented with 0.7 and 1.4% of lw/day with no differences (p>0.05) between the 0.7 and 1.4% levels. the percentage of heifers showing heat until 16 months of age was 9.1; 68.7 and 70.6%, respectively. the supplementations levels did not affect pelvic area, age at puberty and hip height. the estimated intake of dm was lower for the level of 1.4 % lw/day.
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