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| Registros recuperados: 12 | |
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| Canesin,Roberta Carrilho; Berchielli,Telma Teresinha; Andrade,Pedro de; Reis,Ricardo Andrade. |
| Este trabalho foi realizado com o objetivo de avaliar o ganho de peso de bovinos mantidos em pastagens de Brachiaria brizantha cv. Marandu submetidos a três estratégias de suplementação no período das águas e da seca de 2003 e águas de 2004. Os tratamentos consistiram da suplementação diária (SD), em dias alternados (DA) e de segunda à sexta-feira (SF). Foram utilizados 24 bovinos mestiços com peso inicial de 230 kg. Os animais foram pesados individualmente sem jejum, em intervalos de 28 dias. O delineamento adotado foi o inteiramente casualizado, com três tratamentos e oito repetições. Não houve diferença no ganho de peso dos animais, sendo obtidos valores médios de 0,76; 0,71 e 0,74 kg/dia no período das águas de 2003, de 0,57; 0,51 e 0,54 kg/dia na seca... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Freqüência de suplementação; Forragem tropical; Ganho de peso; Pastejo. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007000200019 |
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| Macitelli,Fernanda; Berchielli,Telma Teresinha; Morais,Juciléia Aparecida da Silva; Silveira,Roselene Nunes da; Canesin,Roberta Carrilho. |
| Quarenta bovinos machos, com 30 meses de idade e 371 kg, foram distribuídos em um delineamento em blocos casualizado com esquema fatorial 3 x 3, para avaliar o desempenho e rendimento de carcaça quando alimentados com diferentes fontes protéicas (Amiferm, uréia e farelo de soja) e volumosos (pastagem de capim-braquiária, cana-de-açúcar e silagem de milho). As dietas foram balanceadas para conterem níveis semelhantes de EM e PB. A interação volumoso x fonte de N não foi significativa para nenhum dos parâmetros estudados. O ganho de peso vivo diário (GPV/dia) dos animais alimentados com cana-de-açúcar (0,83 kg) não diferiu dos mantidos em pastagem (0,82 kg), mas ambos foram menores que dos animais alimentados com silagem de milho (1,09 kg). As diferentes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amiferm; Brachiaria brizantha; Cana-de-açúcar; Farelo de soja; Silagem de milho; Uréia. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007000800028 |
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| Mota,Diego Azevedo; Messana,Juliana Duarte; Canesin,Roberta Carrilho; Fiorentini,Giovani; Pires,Alexandre Vaz; Berchielli,Telma Teresinha. |
| The present study was conducted to investigate the effect of alternative true-protein sources to soybean meal, with different ruminal degradability, using a sugarcane-based diet, on nutrient digestion, ruminal fermentation, efficiency of microbial protein synthesis and passage rate in prepubertal dairy heifers. Eight crossbred rumen- and duodenum-cannulated Holstein × Gyr dairy heifers (202.0±11.5 kg BW) were evaluated in a 4 × 4 Latin square experimental design with four treatments and four periods in two simultaneous replicates. Dietary treatments were: soybean meal; cottonseed meal; peanut meal; and sunflower meal. When associated with diets containing sugarcane, the different protein sources did not affect intake or digestibility of dry mater, crude... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbial synthesis; Nitrogen balance; Rumen degradable protein; Sugarcane. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000200052 |
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| Canesin,Roberta Carrilho; Berchielli,Telma Teresinha; Messana,Juliana Duarte; Baldi,Fernando; Pires,Alexandre Vaz; Frighetto,Rosa Toyoko Shiraishi; Fiorentini,Giovani; Reis,Ricardo Andrade. |
| The objective of this study was to evaluate the characteristics of ruminal fermentation and enteric methane production in beef cattle subjected to different supplementation frequencies while grazing on Brachiaria brizanthacv. Marandu pastures. Nine cattle (325±65.7 kg BW) fitted with ruminal and duodenal cannulas were used in the ruminal fermentation study, and 12 cattle (399±32.6 kg BW) were used in the enteric methane production study. The treatments included supplementation once daily, supplementation once daily except Saturdays and Sundays, or supplementation on alternate days. The supplementation was equivalent to 10 g kg−1 BW day−1 for all treatments. The design employed was completely randomized with three treatments and three replications. When all... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacterial N synthesis; N-alkane; Nutrient intake; Ruminal methane; Tropical pasture; Volatile fatty acids. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100590 |
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| Silveira,Roselene Nunes da; Berchielli,Telma Teresinha; Canesin,Roberta Carrilho; Messana,Juliana Duarte; Fernandes,Juliano José de Resende; Pires,Alexandre Vaz. |
| Objetivou-se avaliar o efeito da deficiência de nitrogênio degradável no rúmen (NDR), utilizando como volumoso cana-de-açúcar suplementada com uréia, farelo de soja ou farelo de glúten de milho - 60, sobre a eficiência de síntese microbiana e a degradabilidade in situ da matéria seca (MS) e da fibra em detergente neutro (FDN) em novilhos mestiços. Utilizaram-se oito novilhos canulados no rúmen e duodeno, distribuídos em dois quadrados latinos 4 × 4 e alimentados com cana-de-açúcar e cana-de-açúcar suplementada com uréia, farelo de soja ou farelo de glúten de milho-60. O pH e a concentração de N-NH3 foram mensurados no fluido ruminal antes e 2, 4, 6 e 8 horas após o fornecimento da ração. Utilizou-se a fibra em detergente ácido indigestível como indicador... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Farelo de soja; Glúten de milho-60; Nitrogênio amoniacal; Purinas; Uréia. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000300024 |
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| Messana,Juliana Duarte; Canesin,Roberta Carrilho; Fiorentini,Giovani; Reis,Ricardo Andrade; Arcuri,Pedro Braga; Berchielli,Telma Teresinha. |
| The objective of this study was to evaluate nutrient intake, performance, estimated methane production and carcass characteristics of steers fed diets containing three different levels of soybean grain: 0, 120 and 230 g/kg on the dry matter (DM). The study was conducted on eighteen castrated Nellore males with an average initial body weight (BW) of 370±12 kg in a completely randomized design, with three treatments and six repetitions. Intake of dry matter (DMI, kg/day) and crude protein tended to decrease linearly, and the intake of ether extract increased linearly in response to the soybean grain levels in the diet. Levels of soybean grain in the diet did not affect DMI (g/kg of BW), final average weight, average daily weight gain, feed efficiency and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass yield; Fat thickness; Greenhouse gases; Lipids; Loin eye area; Weight gain. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001200662 |
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| Guimarães,André Lasmar; Mercadante,Maria Eugênia Zerlotti; Canesin,Roberta Carrilho; Branco,Renata Helena; Lima,Maria Lucia Pereira; Cyrillo,Joslaine Noely dos Santos Gonçalves. |
| ABSTRACT The objective of this study was to evaluate the associations between feed efficiency and feeding behavior, growth and carcass traits in Senepol cattle. A total of 137 animals were evaluated. Of these animals, 36 males were evaluated in a second test, totaling 173 records (initial age of 466±96 days and initial weight of 426±104 kg). Residual feed intake (RFI) was calculated as the difference between observed and expected dry matter intake, estimated by regression of dry matter intake on average daily gain and metabolic body weight (BW0.75), and the animals were classified as negative (high efficiency) and positive RFI (low efficiency). The mean RFI was -0.838±0.078 and 0.797±0.075 kg DM day-1 for negative and positive RFI animals, respectively,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Feed intake; Residual feed intake. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000100047 |
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| Canesin,Roberta Carrilho; Berchielli,Telma Teresinha; Vega,Antonio de; Reis,Ricardo Andrade; Messana,Juliana Duarte; Baldi,Fernando; Páscoa,Adriano Gomes. |
| Reduced supplementation frequency is a broadly applied management practice. Ruminants consuming low quality forages/pastures, supplemented less than once daily are able to maintain body weight gain (BWG), efficiency of use of dry matter, nitrogen and other nutrients, as compared with animals supplemented once daily. We evaluated the feeding behavior, dry matter intake (DMI), dry matter and organic matter digestibility (DMD and OMD), BWG, Longissimus muscle area and backfat depth of Nellore steers raised on Brachiaria brizantha cv. Marandu pastures during the dry season, with different supplementation patterns. Thirty six animals (338 ± 40.7 kg) were distributed over nine paddocks according to a completely randomized design. Treatments were based on... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000200003 |
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| Mercadante,Maria Eugênia Zerlotti; Caliman,Ana Paula de Melo; Canesin,Roberta Carrilho; Bonilha,Sarah Figueiredo Martins; Berndt,Alexandre; Frighetto,Rosa Toyoko Shiraishi; Magnani,Elaine; Branco,Renata Helena. |
| Feed intake and average daily gain (ADG) in Nellore cattle were determined to calculate residual feed intake in two performance tests: first during the growth phase (RFIgrowth) and then during a measurement of the methane emission phase (RFImet). During the RFIgrowth test, 62 males and 56 females were classified as low-, medium-, and high-RFI. Enteric methane emission was measured in 46 animals; 23 males used for RFImet measurement plus 23 females (22 low-RFIgrowth and 24 high-RFIgrowth). Diet consisted of Brachiaria brizantha cv. Marandu hay (445 g/kg DM) and concentrate (555 g/kg DM). During the RFIgrowth and RFImet phases, DMI was lower in the animals with low RFI, with no difference in ADG. Residual feed intake was -0.359 and 0.367 kg DM/d for low- and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Enteric methane production; Feed efficiency; Performance; Sulfur hexafluoride. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000700255 |
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| Messana,Juliana Duarte; Berchielli,Telma Teresinha; Arcuri,Pedro Braga; Reis,Ricardo Andrade; Canesin,Roberta Carrilho; Ribeiro,Andressa Ferreira; Fiorentini,Giovani; Fernandes,Juliano José de Resende. |
| The objective of the present study was to evaluate the effects of dietary lipid content (20, 40 and 60 g/kg dry matter) on intake, total and ruminal apparent digestibility of dry matter (DM), nutrient digestibility, rumen fermentation parameters, microbial synthesis efficiency and rumen microbial content of beef cattle. Nine cannulated steers at 6 months of age with initial body weight of 232±35 kg were used in a triplicate 3 × 3 Latin square design. The results indicated that the total intake and digestibility of DM, organic matter (OM), gross energy (GE), neutral detergent fiber (NDF) and acid detergent fiber (ADF) were not affected by the lipid content of the diet. However, the lowest lipid content diet reduced the total digestibility of crude protein... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovines; Digestibility; Fat; Soybean; Volatile fatty acids. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000300008 |
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| Martins,Adriana de Souza; Vieira,Paulo de Figueiredo; Berchielli,Telma Teresinha; Prado,Ivanor Nunes do; Canesin,Roberta Carrilho; Setti,Mara Cristina. |
| Avaliou-se o efeito da adição de enzimas fibrolíticas (celulase e xilanase) sobre as taxas de passagem de partículas e de diluição e os parâmetros ruminais (pH e nitrogênio amoniacal) em animais consumindo dietas contendo silagem de milho e feno de tifton 85 (Cynodon spp.) como volumoso. Oito bovinos com fístulas no rúmen e no duodeno foram distribuídos em dois quadrados latinos 4 x 4, com os tratamentos distribuídos em esquema fatorial 2 x 2 (duas fontes de volumoso e adição ou não de enzimas). O complexo enzimático foi proveniente de fonte comercial e extraído dos fungos Aspergillus niger e Trichoderma longibrachiatum, sendo fornecido na proporção de 12 g/animal/dia, misturado à ração total. Para as taxas de passagem, foram utilizados como marcadores das... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Celulase; Feno de tifton; Ruminantes; Silagem de milho. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982006000400033 |
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| Registros recuperados: 12 | |
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