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| Registros recuperados: 11 | |
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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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| Ribeiro,Andressa Ferreira; Messana,Juliana Duarte; José Neto,Antônio; Fiorentini,Giovani; Berchielli,Telma Teresinha. |
| ABSTRACT The objectives of this study were to evaluate the effect of forages with different nutritional values - specifically, corn silage (CS), sugar cane (SC), and sugar cane bagasse (SB) - in diets with crude glycerin, on carcass traits, meat quality, and fatty acid profile, using young Nellore bulls finished in the feedlot. Thirty young Nellore bulls with an initial average body weight of 416.70±24.74 kg were randomly assigned to three treatments containing different sources of forage. The carcass traits and variables related to meat quality of the Nellore young bulls were not significantly influenced by different sources of forage in diets with crude glycerin. The yellow color index was significantly greater in the fat of animals fed corn silage.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; Feedlot; Forage NDF. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000400165 |
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| Kozloski,Gilberto Vilmar; Lima,Lisiane Dorneles de; Chiesa,Andréa Paola Ruggia; Oliveira,Lisandre de; Fiorentini,Giovani; Härter,Carla Joice. |
| Foram conduzidos dois ensaios para medir os fluxos portal e visceral total de metabólitos em ovinos (peso vivo (PV) médio de 35 ± 3 kg) recebendo feno de capim-arroz (Echinochloa sp.) cortado aos 32, 46, 72 ou 90 dias de rebrota. Um dos ensaios foi realizado em quadrado latino 4 × 4 (ensaio 1) para avaliação dos quatro fenos e outro em quadrado latino 3 × 3 (ensaio 2), sem o feno do capim cortado aos 32 dias de rebrota. Os animais foram implantados com cateteres permanentes nas veias mesentérica e hepática. Sangue arterial foi acessado através de cateteres temporários na carótida. O fluxo de sangue portal e visceral foi estimado com base na diluição de paraminohipurato infundido continuamente em uma veia mesentérica. Na refeição prévia às amostragens, o... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aminoácidos; Amônia; Echinochloa sp.; Glicose; Metabolismo; Uréia. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000600020 |
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| Kozloski,Gilberto Vilmar; Lima,Lisiane Dorneles de; Fiorentini,Giovani; Härter,Carla Joice; Raiser,Alceu Gaspar; Mazzanti,Alexandre. |
| O objetivo deste estudo foi avaliar o método de multicateterização utilizado para estudar o metabolismo visceral em ruminantes. Quatro ovinos Ideal <FONT FACE=Symbol>´</FONT> Texel (peso vivo (PV) médio de 35 ± 2,5kg) foram implantados com cateteres permanentes nas veias mesentérica, porta e hepática. Sangue arterial foi acessado através de cateteres temporários implantados na carótida. A estimativa de fluxo de sangue portal e visceral foi feita com o uso do indicador paraminohipurato. Todos os cateteres mantiveram-se viáveis durante um período de no mínimo 45 dias. O fluxo de sangue visceral foi em média de 147l h-1 ou 4,2l h-1 kg-1 de PV, similar ao obtido em outros estudos com ovinos. Contudo, os dados de fluxo de sangue portal obtidos na... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fígado; Fluxo de sangue; Metabolismo; Paraminohipurato; Sistema portal. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000100044 |
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| Fiorentini,Giovani; Santana,Márcia Cristina Araújo; Sampaio,Alexandre Amstalden Moraes; Reis,Ricardo Andrade; Ribeiro,Andressa Ferreira; Berchielli,Telma Teresinha. |
| The objective of this study was to evaluate the effect of different lipid sources on nutrient intake, performance, development and carcass characteristics of heifers raised in confinement. Twenty-one crossbreed heifers (Nellore × Santa Gertrudis × Braunvieh) received 600 g/kg forage composed of corn silage and 400 g/kg concentrate with a 58.0 g/kg fat content in the total diet. The following lipid sources were used: soybeans, protected fat (Megalac-E®) and soybean oil. The experimental design was completely randomized, with three treatments and seven replicates, and the means were compared by the Tukey test at 5%. The protected fat diet resulted in a greater intake of dry matter (8.80 kg/d) when compared with the other diets. The animals that were fed the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass; Females; Ingestion; Protected fat; Soy oil and soybean. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600025 |
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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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| Carvalho,Isabela Pena Carvalho de; Fiorentini,Giovani; Berndt,Alexandre; Castagnino,Pablo de Souza; Messana,Juliana Duarte; Frighetto,Rosa Toyoko Shiraishi; Reis,Ricardo Andrade; Berchielli,Telma Teresinha. |
| ABSTRACT The objective of this study was to evaluate the effect of lipid sources on voluntary intake, digestibility, performance, and CH4 emission of Nellore steers grazing Brachiaria brizantha cv. Xaraés forage in the dry season. Forty-five Nellore steers with average weight of 442±34 kg were alloted into one of the five treatments: without additional fat; with palm oil; with linseed oil; with protected fat; and with whole soybeans. The supplements were provided daily and quantities were adjusted to 1% of body weight and diets were formulated in accordance with the Cornell Net Carbohydrate and Protein System. The experimental design was completely randomized with five treatments and two replications. There were no effects on dry matter, organic matter,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Linseed oil; Palm oil; Protected fat; Supplementation; Whole soybeans. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016001200760 |
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| Fiorentini,Giovani; Berchielli,Telma Teresinha; Santana,Márcia Cristina Araújo; Dian,Paulo Henrique Moura; Reis,Ricardo Andrade; Sampaio,Alexandre Amstalden Moraes; Biehl,Marcos Vinicius. |
| Lipids have been used in ruminant feed to replace high amounts of grain for increasing the diet energy density, performance and meat quality. This study evaluated the qualitative characteristics of meat from feedlot heifers fed with sources of lipid supplements. Twenty-one crossbred heifers (1/4Nelore × 1/4Santa Gertrudis × 1/2Braunvieh) were used. Each heifer received 60 % forage with a base of corn silage and 40 % concentrate, resulting in 5.8 % lipid content in the total diet. The following sources of lipids were used: soybeans, protected fat and soybean oil. There were no differences on physical characteristics of meat samples from heifers fed with the lipid sources. Soybeans increased the concentration of linoleic acid, content of polyunsaturated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meat quality; Protected fats; Soybeans; Soybean oil. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000500008 |
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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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| Registros recuperados: 11 | |
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