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| Registros recuperados: 28 | |
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| Tedeschi,Luis Orlindo; Almeida,Amélia Katiane de; Atzori,Alberto Stanislao; Muir,James Pierre; Fonseca,Mozart Alves; Cannas,Antonello. |
| ABSTRACT If the world population continues to increase exponentially, wealth and education inequalities might become more pronounced in the developing world. Thus, offering affordable, high-quality protein food to people will become more important and daunting than ever. Past and future challenges will increasingly demand quicker and more innovative and efficient solutions. Animal scientists around the globe currently face many challenging issues: from ensuring food security to prevent excess of nutrient intake by humans, from animal welfare to working with genetic-engineered animals, from carbon footprint to water footprint, and from improved animal nutrition to altering the rumen microbiome. Many of these issues are most likely to continue (or to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Challenges; Issues; Livestock; Ruminant; Production. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000500438 |
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| Tedeschi,Luis Orlindo; Fonseca,Mozart Alves; Muir,James Pierre; Poppi,Dennis P.; Carstens,Gordon E.; Angerer,Jay P.; Fox,Danny Gene. |
| ABSTRACT Despite tremendous advancements in the livestock sector, additional opportunities exist to improve even further livestock production around the globe. Forecasting is not an exact science and it relies heavily on past and current knowledge. Improvements in the nutritional sciences (both human and animal) include a better understanding of agents that cause deterioration of human health, improving the quality of animal products, applying effective fetal programming, developing new feeds and feeding strategies, and revisiting longstanding technologies. Improvements in the understanding of the rumen microbiome will enable scientists to increase the fermentation efficiency and, hopefully, select microbial species of greater interest. Improvements in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forecasting; Livestock; Ruminant; Solutions; Production; Vision. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000500452 |
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| Caetano,Hamilton; Oliveira,Mauro Dal Secco de; Freitas Júnior,José Esler de; Rêgo,Aníbal Coutinho do; Carvalho,Marina Vieira de; Rennó,Francisco Palma. |
| The objective of this study was to evaluate the chemical composition and dry matter in vitro digestibility of stem, leaf, straw, cob and kernel fractions of eleven corn (Zea mays) cultivars, harvested at two cutting heights. The experiment was designed as randomized blocks, with three replicates, in a 2 × 11 factorial arrangement (eleven cultivars and two cutting heights). The corn cultivars evaluated were D 766, D 657, D 1000, P 3021, P 3041, C 805, C 333, AG 5011, FOR 01, CO 9621 and BR 205, harvested at a low cutting height (5 cm above ground) and a high cutting height (5 cm below the first ear insertion). Cutting height influenced the dry matter content of the stem fraction, which was lower (23.95%) in plants harvested at the low, than in plants... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forage; In vitro digestibility; Ruminant; Zea mays. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000100002 |
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| TOMICH, T. R.; PEREIRA, L. G. R.; GONÇALVES, L C.; TOMICH, R. G. P.; BORGES, I.. |
| A silagem é a forragem úmida, ou parcialmente seca, conservada em meio ácido. A ensilagem compreende o armazenamento da forragem em ambiente anaeróbico com o objetivo de restringir a respiração celular, que continua ocorrendo após o corte da forrageira, e fornecer as condições adequadas para o desenvolvimento de bactérias epifíticas, produtoras de ácido lático. Neste processo, os ácidos produzidos pela fermentação de substratos presentes na planta reduzem o pH da massa ensilada, inibindo a ação de enzimas e de microrganismos capazes de promover a sua deterioração. A ensilagem deve visar o aproveitamento da forrageira em seu estádio ótimo de desenvolvimento, conciliando produtividade e valor nutritivo. O seu objetivo é minimizar as perdas de matéria seca... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Característica química; Ruminant; Chemical characteristic.; Ruminante; Silagem.; Silage.. |
| Ano: 2003 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/811112 |
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| Guimarães-Beelen,Patrícia Mendes; Berchielli,Telma Teresinha; Beelen,Roger; Araújo Filho,João; Oliveira,Simone Gisele de. |
| Despite the possible influence of tannins on the nutritional value of the forages from Caatinga vegetation, there are few studies that evaluated their tannin concentration. This study was conducted to characterize condensed tannins present in the legumes species Mimosa hostilis (Jurema Preta), Mimosa caesalpinifolia (Sabiá) and Bauhinia cheilantha (Mororó), at three stages of their phenological cycle. The concentration of soluble tannin (ST), bound tannin (BT) and total tannin (TT) were determined using the butanol-HCL method; astringency was by the radial diffusion method, and the monomeric composition of purified tannins by a high-performance liquid chromatograph with delphinidin, cyanidin and pelargonidin as standards. Concentration and astringency of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Proantocyanidin; Antinutritional factors; Native species; Ruminant. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000600002 |
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| Lira Casas, Raymundo. |
| Las nuevas líneas de investigación en nutrición de rumiantes están buscando diseñar productos con liberación prolongada de urea dentro del rumen. El objetivo de esta investigación fue desarrollar y evaluar microcápsulas que liberen urea en el líquido ruminal. Métodos: Las microcápsulas fueron preparadas por el método de emulsión y evaporación de solvente, como primer paso se preparo el acarreador poroso, después se preparo la fase orgánica con Eudragit RS 100 y por último se preparo la fase acuosa en donde fue agregada la fase orgánica. Las microcápsulas se identificaron mediante microscopia electrónica de barrido, determinando el tamaño y la morfología. Se evaluó la encapsulación de la urea, la flotabilidad de las microcápsulas y la liberación de N... |
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Palavras-chave: Urea; Microcápsulas; Lenta liberación; Rumiante; Microcapsules; Slow release; Ruminant; Maestría; Ganadería. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/448 |
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| Lira Casas, Raymundo. |
| Las nuevas líneas de investigación en nutrición de rumiantes están buscando diseñar productos con liberación prolongada de urea dentro del rumen. El objetivo de esta investigación fue desarrollar y evaluar microcápsulas que liberen urea en el líquido ruminal. Métodos: Las microcápsulas fueron preparadas por el método de emulsión y evaporación de solvente, como primer paso se preparo el acarreador poroso, después se preparo la fase orgánica con Eudragit RS 100 y por último se preparo la fase acuosa en donde fue agregada la fase orgánica. Las microcápsulas se identificaron mediante microscopia electrónica de barrido, determinando el tamaño y la morfología. Se evaluó la encapsulación de la urea, la flotabilidad de las microcápsulas y la liberación de N... |
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Palavras-chave: Urea; Microcápsulas; Lenta liberación; Rumiante; Microcapsules; Slow release; Ruminant; Maestría; Ganadería. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/448 |
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| Romão,F.T.N.M.A.; Curti,J.M.; Pereira,P.F.V.; Flaiban,K.K.M.C.; Lisbôa,J.A.N.. |
| ABSTRACT The aim of this study was to assess the magnitude and duration of blood and urine changes and the side effects of hyperchloremic acidosis induced by the intravenous administration of hydrochloric acid in sheep. Five healthy, crossbred adult ewes, with a mean body weight of 44±2.9kg were used. The hydrochloric acid solution was administered intravenously at a rate of 25mL/kg/h for 4 hours continuously. Venous blood and urine samples were collected and pH values, blood carbon dioxide partial pressure, bicarbonate, base excess, strong ion difference, anion gap, total concentration of nonvolatile buffers, creatinine, plasma L-lactate, plasma and urine sodium, potassium, and chloride were determined. The experimental protocol induced severe... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acid-base balance; Hyperchloremic acidosis; Ruminant; Strong ion acidosis. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000100053 |
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| Orrico Junior,Marco Antonio Previdelli; Retore,Marciana; Manarelli,Débora Maurício; Souza,Fernanda Barboza de; Ledesma,Luana Liz Medina; Orrico,Ana Carolina Amorim. |
| Abstract: The objective of this work was to evaluate four cultivars of saccharine sorghum (Sorghum bicolor) regarding productivity, chemical composition of plant parts, and quality of the ensiling process. The tested varieties of saccharine sorghum were BRS 506, BRS 508, BRS 509, and BRS 511. The experiment was divided into two trials, which assessed: production, morphological composition, and nutritional quality of the saccharine varieties; and fermentation quality and nutritional value of the silage produced from the saccharine varieties. Of the tested varieties, BRS 509 and BRS 511 showed the highest total dry matter (DM) production. The BRS 508 variety presented the highest in vitro digestibility of the whole plant (70.65% DM). During ensiling, the BRS... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sorghum bicolor; Forage system; Nutritional value; Roughage; Ruminant. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001201201 |
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| Silva,Jamile Andréa Rodrigues da; Araújo,Airton Alencar de; Lourenço Júnior,José de Brito; Santos,Núbia de Fátima Alves dos; Viana,Rinaldo Batista; Garcia,Alexandre Rossetto; Rondina,Davide; Grise,Márcia Mascarenhas. |
| The hormonal responses of 20 female buffaloes raised under the sun (SS group) or in the shade (CS group) in Belém, Pará, Brazil, were assessed. The CS group (n = 10) was kept in a silvopasture system featuring Racosperma mangium, whereas the SS group (n = 10) was kept in paddocks without shade featuring Brachiaria humidicola, drinking water, and mineral salt. The following parameters were measured for each treatment: dry-bulb temperature (AT), relative humidity (RH), and black-globe temperature in order to calculate the globe temperature and humidity index (GTHI). Blood sample collections to quantitatively determine levels of cortisol, triiodothyronine (T3), and thyroxine (T4) were performed every 14 days, at 13.00 h. Different seasons of the year were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioclimatology; Cortisol; Ruminant; Silvopasture system; Thyroid hormone. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000100007 |
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| Moreira, Milenna Nunes; Silva, Aderbal Marcos de Azêvedo; Carneiro, Heloisa; Bezerra, Leilson Rocha; Morais, Raissa Kiara Oliveira de; Medeiros, Fabiola Franklin de. |
| This study aimed to determine the in vitro degradability of dry matter and the total gas production of oil seed press cake from biodiesel production (Gossypium hirsutum L., Helianthus annuus L., Ricinus communis, Moringa oleífera L. and Pinhão manso curcas L.) at four different levels of replacement (0, 30, 50, and 70%) for cane sugar (Saccharum officinarum RB.) in ruminant feed. Inocula were prepared using the ruminal fluid of three Holstein cows, and data were collected after 48 hours of incubation. The byproducts of Moringa had the highest degradability, and castor presented the lowest values at all evaluated levels of replacement. Castor bean byproduct showed the highest total gas production, cotton showed the lowest production, and the byproduct of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fermentation; Ruminant; Alternative foods; Methane. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/23950 |
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| Sá,Hemilly Cristina Menezes de; Borges,Iran; Macedo Junior,Gilberto de Lima; Neiva,José Neuman Miranda; Silva,Veridiana Basoni; Sousa,Jhone Tallison Lira de. |
| The objective of this work was to investigate the ingestive behavior of sheep fed with different inclusions of babassu endocarp meal I. The animals receive isofibrous, isoenergetic and isonitrogenous diets containing the by-product in increasing levels of inclusion (zero; 7,5%; 15%; 22,5%). Twenty rams were used in this study and distributed in four treatments with five repetitions each. The ingestive behavior was conducted over a period of 24 hours, with visual observations at 5 minutes intervals and the variables being: idle, ruminating, feeding and chewing. The study demonstrated that the dry matter intake in function of the body weight and the metabolic weight decreased linearly as the babassu endocarp meal I was included in the diet. The feeding,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: By product; Fiber; Lambs; Processing; Ruminant. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014001102084 |
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| Nogueira,Ricardo Galbiatti Sandoval; Perna Junior,Flavio; Pereira,Angélica Simone Cravo; Rodrigues,Paulo Henrique Mazza. |
| ABSTRACT: High lipid concentration in ruminant diets often harms nutrient digestibility and feed intake; thus, a protected lipid and antioxidant source can be considered as an alternative for improving diet energy without putting animal production at a disadvantage. The aim of this study was to evaluate the dry matter intake (DMI), nutrient digestibility and feeding behavior of cattle fed cottonseed and vitamin E. Six cannulated cows, non-pregnant, non-lactating were distributed in a replicated 3 × 3 Latin Square design. Feed was offered ad libitum twice daily. Treatments were: 1) Control, 2) CS: 30 % cottonseed included; and 3) CSVitE: 30 % cottonseed plus 500 IU VitE included. Data were analyzed by SAS (Statistical Analysis System, v.9.3) and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant; Oilseed; Ruminant. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001200112 |
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| Souza,Paulo Henrique de; Faturi,Cristian; Rodrigues,Luiz Fernando de Souza; Silva Filho,Ednaldo da; Rêgo,Aníbal Coutinho do; Rodrigues Filho,José Adérito. |
| Abstract: The objective of this work was to assess the nutritive value of four elephant grass (Pennisetum purpureum) genotypes. The chemical composition, intake by sheep, and digestibility of different genotypes (G1, G2, G3, and G4) were evaluated. A dry matter (DM) digestibility assay was performed with total leftovers and feces collected from 20 sheep kept in metabolic cages. G3 had lower DM intake in grams per animal per day compared with G1 and G2, and it had greater digestibility, crude protein, neutral detergent fiber, and acid detergent fiber values. G1, G2, and G4 have the best nutritive values among the evaluated genotypes. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pennisetum purpureum; Digestibility; Intake; Ruminant. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017001000951 |
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| Registros recuperados: 28 | |
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