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| Registros recuperados: 28 | |
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| Estrada Godoy, Jesús. |
| Se ha tratado de encontrar el menor nivel de proteína cruda (PC) en dietas sorgo-pasta de soya adicionada con AA sintéticos que mantenga los resultados productivos de la dieta estándar; también se ha tratado de encontrar un aditivo capaz de mejorar la respuesta productiva de cerdos alimentados con dietas con baja proteína (DBP). Uno de estos aditivos podría ser el compuesto β-adrenérgico Ractopamina (RAC). Por ello, se realizó un experimento para evaluar el comportamiento productivo (ganancia diaria de peso, GDP; consumo de alimento, CAL; conversión alimenticia, CA; ganancia de carne magra, GCM), las características de la canal (área del músculo longissimus, AML; grasa dorsal, GD; porcentaje de carne magra, %CM) y la concentración de urea en plasma de 36... |
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Palavras-chave: Cerdos; Dietas con baja proteína; Ractopamina; Lisina; Concentración de urea en plasma; Pigs; Low-protein diets; Ractopamine; Lysine; Plasma urea nitrogen concentration. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/442 |
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| Estrada Godoy, Jesús. |
| Se ha tratado de encontrar el menor nivel de proteína cruda (PC) en dietas sorgo-pasta de soya adicionada con AA sintéticos que mantenga los resultados productivos de la dieta estándar; también se ha tratado de encontrar un aditivo capaz de mejorar la respuesta productiva de cerdos alimentados con dietas con baja proteína (DBP). Uno de estos aditivos podría ser el compuesto β-adrenérgico Ractopamina (RAC). Por ello, se realizó un experimento para evaluar el comportamiento productivo (ganancia diaria de peso, GDP; consumo de alimento, CAL; conversión alimenticia, CA; ganancia de carne magra, GCM), las características de la canal (área del músculo longissimus, AML; grasa dorsal, GD; porcentaje de carne magra, %CM) y la concentración de urea en plasma de 36... |
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Palavras-chave: Cerdos; Dietas con baja proteína; Ractopamina; Lisina; Concentración de urea en plasma; Pigs; Low-protein diets; Ractopamine; Lysine; Plasma urea nitrogen concentration. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/442 |
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| Prado,Tayrone F.; França,Aldi F.S.; Meirinhos,Maria Lúcia G.; Peron,Hugo J.M.C.; Ferreira,Reginaldo N.; Oliveira,Leonardo G.; Corrêa,Daniel S.. |
| ABSTRACT The number of sheep flocks in Brazil is increasing. It is known that lambs must be slaughtered when young for producing quality meat. The current study evaluated the inclusion of protected methionine, protected lysine, lysophospholipid and amylolytic enzymes in a diet to lambs and their effects on weight gain and quantitative carcass traits at slaughtering. Eighty non-castrated male crossbred Dorper x Santa Inês lambs, 20.57 ± 4.33 kg live weight, were used. The feedlot lasted 64 days and 60 animals were slaughtered. There were no differences for live weight, daily feed intake, feed conversion and average daily weight gain at the first 28 days of feedlot. From the 28th day lysophospholipid treatment presented the highest live weight.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amylolytic enzyme; Lysine; Lysophospholipid; Methionine; Ovine. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502255 |
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| Siqueira,JC; Sakomura,NK; Dourado,LRB; Ezequiel,JMB; Barbosa,NAA; Fernandes,JBK. |
| Two experiments were carried out to compare two techniques (amino acid supplementation and dilution) for formulating experimental diets for pre-starter (1 to 8 days) and starter (8 to 22 days) broiler chicks and to estimate digestible lysine requirements using the dose-response method. In each experiment, 1,200 male Cobb 500 chickens were randomly distributed according to a 5x2 factorial arrangement (lysine level x formulation technique) with six replicates of 20 birds each. For the supplemented diet, a basal diet was formulated to meet the nutritional requirements, then L-lysine HCl was added to achieve digestible lysine levels of 0.975, 1.082, 1.189, 1.296 and 1.403% in the pre-starter diets and 0.840, 0.932, 1.024, 1.116 and 1.208% in the starter diets.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Diet formulation; Dose-response; Lysine; Performance. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200008 |
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| Campelo,Daniel Abreu Vasconcelos; Salaro,Ana Lúcia; Ladeira,André Luis Fialho; Moura,Lorena Batista de; Furuya,Wilson Massamitu. |
| ABSTRACT A 90-day feeding trial was conducted to estimate the dietary lysine requirement of adult lambari ( Astyanax altiparanae ), based on growth performance, whole-body composition, muscle development, and aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities. Six isoproteic (345.0 g kg−1) and isoenergetic (19.51 MJ kg−1) diets were formulated, and crystalline L-lysine was added to obtain diets with lysine concentrations of 12.13, 13.31, 15.36, 18.79, 19.92, and 23.02 g kg−1 dry diet. Female adult lambari (n = 480; weight of 4.96±0.02 g) were distributed into 24 (70 L) aquaria and fed the experimental diets six times daily. Fish fed 12.13 to 19.92 g kg−1 lysine showed increased weight gain and percent weight gain, and fish from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aminoacid; Carcass quality; Fish nutrition; Lysine; Nutritional requirement. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100103 |
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| Toro,Alejandro Alberto; Medici,Leonardo Oliveira; Sodek,Ladaslav; Lea,Peter John; Azevedo,Ricardo Antunes. |
| For human nutrition the main source of vegetable proteins are cereal and legume seeds. The content of total soluble amino acids in mature endosperm of wild-type, opaque and floury maize (Zea mays L.) mutants were determined by HPLC. The total absolute concentration of soluble amino acids among the mutants varied depending on the mutant. The o11 and o13 mutants exhibited the highest average content, whereas o10, fl3 and fl1 exhibited the lowest average content. In general, the mutants exhibited similar concentrations of total soluble amino acids when compared to the wild-type lines, with the clear exception of mutants o11 and fl1, with the o11 mutant exhibiting a higher concentration of total soluble amino acids when compared to its wild-type counterpart... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Lysine; Threonine; Methionine. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000100014 |
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| Tavernari,Fernando de Castro; Lelis,Guilherme Rodrigues; Carneiro,Paulo Roberto de Oliveira; Vieira,Rodolfo Alves; Polveiro,Richard Costa; Luengas,Jorge Armando Prada; Rostagno,Horacio Santiago; Albino,Luiz Fernando Teixeira. |
| Two experiments were conducted to evaluate different digestible isoleucine/lysine ratios on diets for broiler chickens in the starter (7 to 21 days) and finishing (30 to 43 days) phases. For the tests, the experimental design was of randomized blocks with seven treatments (six different digestible isoleucine/lysine ratios and a control treatment) and eight repetitions of 25 and 20 birds (COBB males) per experimental unit in the starter and finishing phases, respectively. The diets met the requirements, except for isoleucine and lysine. To avoid excess lysine in the experimental diets, the digestible lysine content was calculated to be 87% and 89% of the recommended for the starter and finishing phases, respectively. The control treatment was adequate in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Isoleucine; Lysine; Ratio; Requirement. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700020 |
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| Nasr,J; Kheiri,F. |
| The study was conducted to evaluate carcass yield and chemical composition of thigh and breast muscles of broilers fed three different lysine requirement levels: high lysine (+10% NRC), standard (NRC) and low lysine (-10% NRC) and two ways of expressing amino acids in feedstuffs (total or digestible amino acids). The results of this study showed that diet formulation based on digestible amino acids significantly influenced breast yield and abdominal fat deposition. The study showed that increasing lysine level (+10% NRC) of diet significantly increased both carcass and breast percentage and also carcass, breast and thigh weight. The interaction between digestible amino acids and lysine requirement levels affected carcass and breast percentage. Feeding... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acids; Carcass; Digestible; Lysine; Requirements. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000400004 |
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| Araújo,LF; Junqueira,OM; Araújo,CSS; Barbosa,LCGS; Ortolan,JH; Faria,DE; Stringhini,JH. |
| An experiment was conducted to evaluate the performance and carcass yield of broilers at 55 days of age fed diets with different levels of metabolizable energy and lysine. Evaluated data of performance were weight gain, feed intake, energy intake, lysine intake, caloric conversion and feed conversion. Carcass assessment was performed based on data from carcass yield, breast weight, whole wings, whole legs, back, head + neck, feet and abdominal fat. A 3 x 3 factorial arrangement was used, with 3 levels of metabolizable energy (3,200; 3,400 and 3,600 kcal ME/kg) and 3 lysine levels (0.95%; 1.05% and 1.15%). There was no interaction between the two factors. Nevertheless, increasing levels of metabolizable energy improved weight gain (745 g; 841 g and 910 g,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broilers; Lysine; Metabolizable energy; Performance. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000400007 |
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| Martínez Aispuro, José Alfredo. |
| El presente trabajo tuvo como objetivo reducir y/u optimizar la concentración de algunos nutrimentos en las dietas de cerdos de engorda que puede resultar benéfica en la formulación de raciones. Se realizaron 3 experimentos para evaluar el nivel de lisina, el uso de alcaloides y xilanasas en dietas para cerdos de engorda. En el experimento 1 se determinaron los niveles óptimos biológicos (NOB) de lisina total para cerdos en las etapas de crecimiento y finalización en el comportamiento productivo, las características de la canal, y la concentración de urea en plasma. El NOB para ganancia diaria de peso (GDP), conversión alimenticia, y ganancia de carne magra fue 0.88% de lisina total; mientras que el NOB para consumo de alimento fue 0.961% de lisina total.... |
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Palavras-chave: Lisina; Alcaloides; Dietas con baja proteína; Xilanasas; Energía; Proteína; Lysine; Alkaloids; Low protein diets; Xylanase; Energy; Protein; Ganadería; Doctorado. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/2159 |
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| Wu,Qian; Li,Shu-Yi; Yang,Ting; Xiao,Juan; Chu,Qian-Mei; Li,Ting; Xie,Bi-Jun; Sun,Zhi-Da. |
| Background Industrial food processing induces protein glycation modifications and toxic advanced glycation end products (AGEs) which affect human health. Therefore, it is of interest to monitor AGEs in food processing. The present study was carried out to investigate the influence of lotus seedpod oligomeric procyanidin (LSOPC) concentrations, solution pH value and metal ions on AGE formation by heat treatment of lactose-lysine model solutions. Ne-(carboxymethyl) lysine (CML), as one of the common AGEs was also determined by HPLC-MS/MS in this experiment. Results The results showed that LSOPC can inhibit the formation of AGEs effectively at higher concentrations, lower temperature, and it can reverse the promotion function of metal ions because of its high... |
| Tipo: Journal article |
Palavras-chave: Advanced glycation end products (AGEs); Lactose; Lotus seedpod oligomeric procyanidins (LSOPC); Lysine; Maillard reaction. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000200002 |
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| Ferreira,Renato Rodrigues; Vendemiatti,Ariane; Meinhardt,Lyndel Wayne; Lea,Peter John; Azevedo,Ricardo Antunes. |
| Cereal seeds are poor in essential amino acids, particularly lysine, tryptophan and threonine. The amino acids lysine and threonine are synthesized in the aspartate pathway. Although most of the enzymes of the aspartate pathway have been isolated and characterized in higher plant species, the metabolism of lysine and threonine is totally unknown in sorghum. We have isolated two enzymes, aspartate kinase (AK) and homoserine dehydrogenase (HSDH) from sorghum. Optimum assay conditions were established for the determination of AK and HSDH activities. The highest level of activity was observed in immature seeds. AK was shown to be inhibited by threonine and lysine indicating the existence of at least two isoenzymes, one sensitive to threonine inhibition and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acids; Aspartate kinase; Homoserine dehydrogenase; Lysine; Threonine. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202004000200005 |
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| Registros recuperados: 28 | |
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