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| Registros recuperados: 28 | |
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| Fornazier,Ricardo Francisco; Azevedo,Ricardo Antunes; Ferreira,Renato Rodrigues; Varisi,Vanderlei Aparecido. |
| Lysine is an essential amino acid, synthesized in plants in the aspartic acid pathway. The lysine catabolism is performed by the action of two consecutive enzymes, lysine 2-oxoglutarate reductase (LOR) and saccharopine dehydrogenase (SDH). The steady state of lysine is controlled by both, synthesis and catabolism rates, with the final soluble lysine concentration in cereal seeds a direct result of these processes. In the last 40 years, the enzymes involved in lysine biosynthesis have been purified and characterized from some plant species such as carrot, maize, barley, rice, and coix. Recent reports have revealed that lysine degradation might be related to various physiological processes, for instance growth, development and response to environmental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acids; Lysine; Metabolism; Mutants. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202003000100002 |
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| Magnabosco,Diogo; Bierhals,Thomas; Ribeiro,Renato Rosa; Cemin,Henrique Scherer; Faccin,Jamil Elias Ghiggi; Bernardi,Mari Lourdes; Wentz,Ivo; Bortolozzo,Fernando Pandolfo. |
| Lysine requirements for gain in maternal body reserves and piglet birth weight, during pregnancy, in contemporary prolific genotypes, are not well established. This study aimed to evaluate the effect of dietary lysine in late pregnancy on piglet birth weight, and on the gestational and lactational performance of gilts. Pregnant gilts were uniformly distributed into two groups and received, from 85 to 110 days of gestation, either of two lysine levels in their diet: Control group - 28g lysine/day (n=136), and Lysine group - 35g lysine/day (n=141). There were no effects (P>0.10) of supplemental lysine on body weight and backfat (BF) gain of females or on piglet birth weight. Gilts supplemented with lysine tended to have a lower percentage of stillbirths... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lysine; Pregnancy; Piglets; Birth weight. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000800020 |
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| Gutiérrez Hernández, Sandra. |
| La lisina (lis) y treonina (tre) son el primer y segundo aminoácidos limitantes en las dietas de cerdos para la síntesis de proteína. El objetivo del trabajo fue evaluar el efecto de diferentes niveles de lisina y treonina en dietas sorgo-pasta de soya para cerdos en crecimiento, sobre el comportamiento productivo, características de la canal y la concentración de urea en plasma. En el experimento 1 los tratamientos (T) fueron: T1, 0.83 lis+ 0.52 tre; T2, 0.83 lis+ 0.62 tre; T3, 0.93 lis+ 0.52 tre; T4, 0.93 lis+ 0.62 tre). Se utilizaron 36 cerdos (19 hembras y 17 machos castrados) híbridos (Landrace×Yorkshire×Pietrain) con peso promedio inicial de 27,65 ± 5,65 kg durante cuatro semanas, distribuidos en un diseño completamente al azar con arreglo factorial... |
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Palavras-chave: Lisina; Treonina; Comportamiento productivo; Características de la canal; Lysine; Threonine; Productive performance; Carcass characteristics; Ganadería. |
| Ano: 2014 |
URL: http://hdl.handle.net/10521/2288 |
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| Garcia,EA; Mendes,AA; Pizzolante,CC; Saldanha,ESPB; Moreira,J; Mori,C; Pavan,AC. |
| An experiment was conducted at Faculdade de Medicina Veterinária e Zootecnia/Unesp - Botucatu for 168 days to evaluate the effects of protein, Met + Cys and lysine diet levels on egg production and egg quality of laying Japanese quails. Quails with 42 days of age were reared in a completely randomized design. There were 1,944 quails distributed in four replicates of 27 birds per pen, according to a factorial 3x3x2 with three crude protein levels (16, 18 and 20% CP), three Met + Cys levels (0.700; 0.875 and 1.050%) and two lysine levels (1.100 and 1.375%). Birds fed diets with 18 and 20% CP had higher feed intake and egg production than those fed diets with 16% CP. There was significant interaction (p<0.05) between protein and Met + Cys levels on egg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg production; Egg quality; Lysine; Methionine+Cystine; Protein; Quails. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000100002 |
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| Corzo,A; Kidd,MT. |
| Dietary lysine has been shown to impact the performance of broilers, particularly with aspect of breast meat accretion and yield. There have been studies that suggest that early dietary lysine has an effect on breast meat yield in male broilers. A study was designed to evaluate starter dietary lysine (1.20 vs 1.35% of diet as achieved by the addition of L-lysine at the expense of a filler) effect on performance of female broilers from three different genetic strain crosses, and monitor subsequent effects at 41 and 56 d of age. Body weight and feed consumption were higher for birds consuming the high lysine starter diet, but feed conversions were similar when compared to the low lysine diet. Body weight and feed conversion were similar among strains.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breast meat; Broiler; Lysine; Performance. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000200004 |
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| Viola,TH; Kessler,A de M; Ribeiro,AML; Silva,ICM da; Krás,R. |
| Amino acid requirements can be studied maintaining or not the ratio of the amino acids to lysine and changing or not dietary crude protein level. A third alternative was studied in this study conducted to evaluate broiler performance and weight gain of carcass parts, in response to increasing dietary digestible lysine (dig Lys) levels (0.70, 0.80, 0.90, 1.00, 1.055, 1.11, 1.165, and 1.22%). Two basal diets were formulated to contain 19.0% (diet A) and 20.5% (diet B) crude protein, and Met, Arg and Thr levels were formulated to maintain their ideal ratio to Lys. Three hundred and twenty CobbXCobb500 broilers, from 19 to 40 days of age, were used. Basal diet A was set for the 4 lowest levels of dig Lys, and diet B for the other four levels. Body weight (BW),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid balance; Basal diets; Broiler; Lysine; Protein. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000300003 |
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| Ospina-Rojas, Iván Camilo; Universidade Estadual de Maringá; Murakami, Alice Eiko; Universidade Estadual de Maringá; Eying, Cinthia; Universidade Estadual de Maringá; Picoli, Karla Paola; Universidade Estadual de Maringá; Scapinello, Claudio; Universidade Estadual de Maringá; Duarte, Cristiane Regina do Amaral; Universidade Estadual de Maringá. |
| Two experiments were performed to determine the influence of threonine-lysine (Thr:Lys) ratio on requirements of digestible lysine (Lys) in low crude protein diets for broilers in the growth phase. In the first experiment, a total of 480 Cobb 500 male broilers were distributed in a completely randomized experimental design with four dietary Thr:Lysratio (57.0; 60.5; 64.0 and 67.5%) and with five replicates of 24 birds each. No significant differences were reported in weight gain, feed intake, poultry manure humidity, carcass and meat yields. However, the feed conversion was increased linearly as dietary Thr:Lysratio was increased. In the second experiment, a total of 400 Cobb 500 male broilers were distributed in a completely randomized experimental design... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.03.00-1 amino-acid; Lysine; Ideal protein; Threonine. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22557 |
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| Registros recuperados: 28 | |
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