|
|
|
| Registros recuperados: 36 | |
|
| |
|
|
| Oliveira,Will Pereira de; Donzele,Rita Flávia Miranda de Oliveira; Donzele,Juarez Lopes; Albino,Luiz Fernando Teixeira; Antunes,Marcus Vinícius de Lima; Campos,Paulo Henrique Reis Furtado; Souza,Matheus Faria de; Pastore,Silvana Marques. |
| The objective of this study was to evaluate the effect of digestible lysine levels in diets with or without supplementation of industrial amino acids on performance, carcass characteristics and nitrogen excretion in broilers of 22 to 42 days of age. Birds were distributed in a completely randomized experimental design in a 4 × 2 factorial arrangement, with four digestible lysine levels (9.0, 10.0, 11.0 and 12.0 g/kg) and two methods to obtain the lysine levels (variation in the proportion of corn and soybean meal, without supplementation; or supplementation of industrial amino acids), eight replicates and 20 birds per replicate. There was an interaction effect on the performance characteristics and on the weights and yields of prime cuts. In both diets,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crude protein; Ideal protein; Industrial amino acids; Performance. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100579 |
| |
|
|
| Reis,Renata de Souza; Barreto,Sergio Luiz de Toledo; Gomes,Paulo Cezar; Lima,Heder José D'Avila; Medina,Paola Monteiro; Ferreira,Fabiana. |
| The objective of this work was to evaluate the relationships of methionine plus cystine with lysine for Japanese quails in the laying phase. Thus, it was used 480 birds at initial age of 65 days, distributed in randomized block design with 6 treatments, 10 replicates and 8 birds per experimental unit. The treatments consisted of basal diet deficient in methionine plus cystine (0.65%), with 19.6% of crude protein and 2800 kcal of metabolizable energy/kg of ration, supplemented with six levels of DL-methionine 98% (0.116; 0.167; 0.218; 0.269; 0.320 and 0.371%), corresponding to methionine plus cystine with lysine ratio of 0.65, 0.70, 0.75, 0.80, 0.85 and 0.90, and the digestible lysine set at a suboptimal level of 1.00. The parameters studied were: feed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coturnix coturnix japonica; Digestible amino acid; Egg production; Ideal protein; Performance. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000500014 |
| |
|
|
| Toledo,Juliana Beatriz; Furlan,Antonio Claudio; Pozza,Paulo Cesar; Carraro,Jocasta; Moresco,Gabriel; Ferreira,Silvia Letícia; Gallego,Adriana Gomez. |
| Two experiments were carried out to evaluate the reduction of crude protein (CP) in diets supplemented with synthetic amino acids for piglets of 15 to 30 kg. In the performance assay (Exp I), 60 piglets with initial weight of 15.34±0.87 kg and final weight of 30.08±1.59 kg were distributed in a randomized block design with six replicates, five treatments and two animals per experimental unit. The treatments consisted of five diets in which the CP was reduced by 1.5 percentage points, resulting in low-protein diets (19.24, 17.74, 16.24, 14.74 and 13.24%), meeting the requirements of amino acids with inclusion of L-lysine, DL-methionine, L-threonine, L-tryptophan, L-valine and L-isoleucine. The average daily gain and feed conversion according to the Linear... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological value; Ideal protein; Pig; Urea. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000600301 |
| |
|
|
| Campos,Priscila Furtado; Silva,Francisco Carlos de Oliveira; Ferreira,Aloízio Soares; Oliveira,Rita Flávia Miranda de; Donzele,Juarez Lopes; Girotto Júnior,Celso José; Pereira,Cinthia Maria Carlos; Saraiva,Alysson. |
| With the objective to evaluate levels of available phosphorus (aP) in diets with or without ractopamine, 112 gilts with high genetic potential for meat deposition with initial weigh of 94.0±2.28 kg were allotted in a completely randomized block design, in a 4 × 2 factorial arrangement (0.109, 0.209, 0.309, and 0.409% aP and 0 or 5 ppm of ractopamine), with eight treatments, seven replicates, and two gilts per experimental unit. There were no interactions between aP levels and ractopamine. The levels of available phosphorus influenced both daily weight gain and daily phosphorus intake, which increased linearly. Feed conversion improved in a quadratic way up to the estimated level of 0.330% aP maximum response. Daily weight gain increased and feed conversion... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beta agonist; Carcass; Ideal protein; Minerals; Performance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300023 |
| |
|
|
| Apolônio,Lourdes Romão; Donzele,Juarez Lopes; Oliveira,Rita Flávia Miranda de; Saraiva,Alysson; Silva,Francisco Carlos de Oliveira; Ferreira,Aloízio Soares; Lima,Anderson Lazarini; Kill,João Luís. |
| In order to evaluate the effects of increasing dietary tryptophan levels on performance and carcass characteristics of growing pigs, a total of 60 crossbred castrated male pigs, with average initial and final body weights of 15.50 ± 1.15 and 30.60 ± 1.35 kg were used. Pigs were allotted in a completely randomized block design, with five dietary treatments (0.149, 0.158, 0.168, 0.177, and 0.187% digestible tryptophan, corresponding to digestible tryptophan:lysine relations of 16.0, 17.0, 18.0, 19.0, and 20.0%), six replicates, and two animals per experimental unit, which was represented by the pen. Experimental diets and water were supplied ad libitum throughout the experimental period. The average maximum and minimum temperatures inside the rooms were of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acids; Ideal protein; Performance; Protein deposition. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000800012 |
| |
|
|
| Mello,Heloisa Helena de Carvalho; Gomes,Paulo Cezar; Rocha,Tatiana Cristina da; Donzele,Juarez Lopes; Almeida,Rodrigo Lopes de; Troni,Allan Reis; Carvalho,Bruno Reis de; Viana,Gabriel da Silva. |
| Two hundred and fifty-two Hy-Line W36 laying hens were allotted in a completely randomized design with 6 treatments, 7 replicates and 6 hens per experimental unit in order to determine the ideal ratio of isoleucine (Ile) in relation to lysine (Lys) to laying hens aged 42-58 weeks. Experimental diets contained digestible Ile at different levels, resulting in different Ile:Lys ratios (0.73:1; 0.78:1; 0.83:1; 0.88:1; 0.93:1 and 0.98:1). A basal diet was formulated to provide Isoleucine in levels below recommendations. This diet was supplemented with L-isoleucine to make up the 6 diets. Each diet was made isonitrogenous by varying the dietary contents of glutamic acid and isocaloric by adjusting the contents of cornstarch. All essential amino acids were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestible amino acids; Egg quality; Ideal protein; White laying hens. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500032 |
| |
|
|
| Duarte, Karina Ferreira; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Junqueira, Otto Mack; Universidade Estadual Paulista “Júlio de Mesquita Filho” / Universidade Federal de Goiás; Domingues, Carla Heloísa de Faria; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Filardi, Rosemeire da Silva; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Borges, Liliana Longo; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Praes, Maria Fernanda Ferreira Menegucci; Universidade Estadual Paulista “Júlio de Mesquita Filho”. |
| Current experiment established different criteria to evaluate the requirements of digestible valine for broilers from 22 and 42 days of age, by different regression models (quadratic, exponential and Linear Response Plateau) and, in the case of statistical significance, the comparison of means byDuncantest at 5% probability. A total of 1,920 Cobb 500 male broilers were used and distributed in an entirely randomized experimental design, with 6 treatments (6 digestible valine levels: 0.7192, 0.7729, 0.8265, 0.8802, 0.9339 and 0.9876%) and 8 replications, with 40 broilers each. Data on performance and carcass characteristics were evaluated. The level of 0.8265% digestible valine was considered standard. The inclusion of 0.816, 0.848 and 0.903% of digestible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestible amino acids; Ideal protein; Performance; Regression analyses. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22761 |
| |
|
|
| Duarte, Karina Ferreira; Junqueira, Otto Mack; Filardi, Rosemeire da Silva; Laurentiz, Antonio Carlos de; Domingues, Carla Heloisa de Faria; Rodrigues, Eliana Aparecida. |
| Current experiment established different criteria to evaluate the requirements of digestible isoleucine for 22- and 42-day-old broilers by different regression models (quadratic, exponential and Linear Response Plateau) and, in the case of statistical significance, the comparison of means by Duncan’s test at 5% probability. A total of 1,920 Cobb 500 male broilers were used in an entirely randomized experimental design, with 6 treatments (6 digestible isoleucine levels: 0.6118; 0.6655; 0.7192; 0.7729; 0.8265 and 0.8802%) and 8 replications, with 40 broilers each. Data on performance and carcass characteristics were evaluated. Level 0.7192% of digestible isoleucine was considered standard. The digestible isoleucine level recommended for 22- and 42-day-old... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestible amino acids; Ideal protein; Performance; Regression analyses. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24473 |
| |
|
|
| 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 |
| |
|
|
| Castro,Mariana Resende de; Pinheiro,Sandra Regina Freitas; Miranda,Jéssica Amaral; Costa,Leonardo da Silva; Rocha,Graziela Maria de Freitas; Oliveira,Renata Gomes de; Martins,Paulo Gustavo Macedo de Almeida. |
| ABSTRACT: The objective was to estimate the most appropriate digestible methionine + cysteine:lysine ratios for growing meat-type quails (Coturnix coturnix) from 1 to 21 days of age. Quails were fed with a basal ration deficient in digestible methionine + cysteine, with five levels of DL-methionine, in substitution of glutamic acid and starch, resulting in digestible methionine + cysteine:lysine ratios of 0.61, 0.66, 0.71, 0.76 and 0.81. Feed and methionine + cysteine intake, body weight gain, feed conversion and uniformity were assessed. From 1 to 7 days, an increasing linear effect was observed for feed and methionine + cysteine intake, body weight gain, and uniformity, and a linear decrease for feed conversion. From 8 to 14 days, the 0.70 methionine +... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coturnix coturnix; Ideal protein; Performance; Sulfur amino acids. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000600652 |
| |
|
|
| Nagata,Adriano Kaneo; Rodrigues,Paulo Borges; Alvarenga,Renata Ribeiro; Zangeronimo,Márcio Gilberto; Donato,Daniella Carolina Zanardo; Silva,José Humberto Vilar da. |
| The aim of this study was to evaluate carcass characteristics and quality of breast meat after the inclusion of phytase in broiler diets with different levels of apparent metabolizable energy (AMEn) corrected for nitrogen and reduced crude protein (CP) supplemented with essential amino acids following the concept of ideal protein. A total of 1,500 Cobb broilers from 22 to 42 days (initial weight of 833 ± 7 g and final weight of 2741 ± 48 g) were distributed in completely randomized design in a factorial 3x3+1 experiment (three levels of AMEn - 2,950; 3,100 and 3,250 kcal/kg - and three levels of CP - 14, 16 and 18% - and an additional treatment - control without phytase, with 3,100 kcal/kg EMAn, 19.2% PB and 0.4% available phosphorus), in six replications... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Available phosphorus; Dietary addictive; Enzyme; Ideal protein. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000300020 |
| |
|
|
| Oliveira,Jeferson Eder Ferreira; Rodrigues,Paulo Borges; Alvarenga,Renata Ribeiro; Zangeronimo,Márcio Gilberto; Lima,Gustavo Freire Resende. |
| The need for suitable diets in chickens, considering the ideal protein concept associated with phytase, is important in order to improve the productivity of birds. The aim of this study was to assess the need for the correction of amino acid levels in the diets of broilers, by using different combinations of crude protein (CP) supplemented with phytase. For performance, eight days old Cobb 875 broiler chicks, with initial body weights of 155 ± 1.4g were used. The birds were distributed in a completely randomised design with seven treatments (nutritional plans) and five replicates of 25 birds. For the metabolism trial, 300 birds were selected which were also distributed using the same design, but with five, four and three birds per experimental stage: 8-21... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass characteristics; Ideal protein; Nutrition; Performance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000200012 |
| |
|
|
| Chiaradia,Rafael Coutinho Finamor; Zangeronimo,Márcio Gilberto; Fialho,Elias Tadeu; Lima,José Augusto de Freitas; Rodrigues,Paulo Borges; Sousa,Raimundo Vicente de. |
| An experiment was conducted at the Department of Animal Husbandry of Universidade Federal de Lavras aiming to study the nitrogen and energy balance in diets with reduced crude protein rates (CP) and different levels of energy and lysine for growing pigs. 52 castrated pigs (initial weight = 36.13 ± 2.8 kg) of high genetic potential were used, housed individually in metabolism cages (experimental unit). The treatments consisted of 12 diets with three levels of metabolizable energy (ME) (3060, 3230 and 3400 kcal / kg) and four of true digestible lysine (TDL) (0.7, 0.9, 1.1 and 1, 3%) with 14% CP plus a control diet with 3230 kcal ME / kg, 1.03% TDL and 18% CP. We used a DBC in time 3x4 +1 factorial design with four replications to verify the absorbed nitrogen... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Synthetic amino acids; Nutrition; Metabolism; Ideal protein. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000600028 |
| |
|
|
| Zangeronimo,Márcio Gilberto; Cantarelli,Vinícius de Souza; Fialho,Elias Tadeu; Amaral,Nikolas de Oliveira; Silveira,Hebert; Lima,José Augusto de Freitas. |
| The aim of this work was to evaluate the effects of different levels of metabolic energy (ME) in diets with a reduced level of crude protein (CP) on the performance and carcass characteristics of growing swine. Thirty-two high-performance barrows (initial weight of 22.5 ± 1.43 kg and final weight of 50.81 ± 2.54 kg) were distributed in a randomized block design with four treatments (three levels of ME - 3,060, 3,230 and 3,400 kcal/kg - in diets with 14% CP, and one control treatment with 3,230 kcal ME/kg and 18% CP) and four replicates. The diets were formulated with a true digestible basis of amino acids present in the feed, with methionine and threonine concentrations corrected as a function of lysine levels. The animals were slaughtered and their... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestible amino acid; Synthetic lysine; Swine production; Ideal protein. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000300034 |
| |
|
|
| Gomide,Elisangela Minati; Rodrigues,Paulo Borges; Naves,Luciana de Paula; Bernardino,Verônica Maria Pereira; Santos,Luziane Moreira dos; Garcia,Antonio Amandio Pinto. |
| One performance experiment and another metabolism experiment were conducted simultaneously with broilers from 22 to 35 days of age, evaluating five diets in six replicates. The control diet, without phytase, contained 19% of crude protein (CP); 0.412% of available phosphorus (aP) and 0.824% of calcium (Ca). The other diets were supplemented with phytase and were formulated with 0.262% of aP and 0.524% of Ca, with the CP level ranging from 19 to 16%. In the performance assay, 750 birds were used, in which were evaluated the performance, the tibia ash content and yields of carcass, cuts, and abdominal fat at 35 days of age. The metabolism assay was conducted with 90 birds, evaluating the apparent metabolizable energy corrected by the nitrogen balance; the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tibia ash; Carcass yield; Ideal protein; Metabolism; Performance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000100013 |
| |
| Registros recuperados: 36 | |
|
|
|
