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Apparent digestibility of diets with different concentrations of lysine and energy in piglets with different body weights and post-weaning age R. Bras. Zootec.
Trindade Neto,Messias Alves da; Bruno,Daniel Gonçalves; Berto,Dirlei Antonio; Undi,Michael; Schammass,Eliana Aparecida.
The effects of body weight or age and dietary digestible lysine and metabolizable energy on apparent digestibility of energy and dry matter were evaluated in piglets after weaning. The animals were weaned at 21 days of age and distributed in two groups: 8.68 ± 0.76 kg at 28 days of age (weaned 7 days earlier); and 12.73 ± 0.99 kg at 35 days of age (weaned 14 days earlier). The pigs were allotted in digestibility cages in a completely randomized block design with the following factorial arrangements: 2 × 4 composed of two weight categories and four levels of digestible lysine (1.222; 1.305; 1.390 and 1.497%); and 2 × 3 composed of two weight categories and three levels of metabolizable energy (3,510; 3,700 and 3,830 kcal/kg rations). Digestible lysine was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestible amino acid; Digestible energy; Nitrogen retention; Weaned.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000800022
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Dietary levels of lysine for male broilers from 23 to 36 days of age: performance and body composition R. Bras. Zootec.
Trindade Neto,Messias Alves da; Toledo,Ana Louise de; Takeara,Paula; Kobashigawa,Estela; Donato,Daniella Carolina Zanardo; Albuquerque,Ricardo de.
One thousand and fifty (1,050) Ross male broilers from 23 to 36 days of age were used to evaluate the dietary effects of levels of lysine. It was used a random block design with 5 levels of digestible lysine (0.95; 1.00; 1.05; 1.10 and 1.15%). Each level was applied to seven replicates and the experimental unit was composed of 30 birds. Diets were offered in seven replicates and the experimental unit was represented by 30 birds. Weight gain, feed intake, feed conversion, carcass traits, cut yields, composition and deposition of body nutrients were evaluated. The concentration of 1.09% of digestible lysine optimized performance without significant effects on feed intake. Carcass traits and cut yields had no significant differences among levels of lysine. On...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestible amino acid; Nutrient depositions; Nutrition; Requirement.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000300020
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Digestible lysine levels in semi-heavy laying hens in the period from 28 to 44 weeks of age Animal Sciences
Santos, Tiago Antônio dos; Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais; Geraldo, Adriano; Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais; Machado, Luiz Carlos; Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais; Gonçalves, Rogério Amaro; Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais; Pelícia, Kléber; Universidade José do Rosário Vellano; Simão, Sérgio Domingos; Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais.
This study aimed to evaluate the performance of laying hens subjected to heavy semi-low crude protein (14.0%) and lysine levels while maintaining the same relation of digestible amino acid/ digestible lysine. A commercial line of 420 Isa Brown laying hens, in the period from 28 to 44 weeks of age, were distributed in 42 experimental plots. A completely randomized design with six treatments and seven replicates in four periods of 28 days/each was used. The treatments were: Control - Formulated according to the nutritional requirements proposed in the strain, containing 16.92% crude protein, 0.750% digestible lysine. Treatments 1 to 5, with crude protein levels of 14% and 0.600% of digestible lysine, 0.675%, 0.750%, 0.825% and 0.900%, respectively. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.03.00-1 ideal protein; Digestible amino acid; Isa Brown.
Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21822
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Egg quality of hens fed different digestible lysine and arginine levels Rev. Bras. Ciênc. Avic.
Carvalho,FB de; Stringhini,JH; Matos,MS; Café,MB; Leandro,NSM; Gomes,NA; Santana,ES; Jardim Filho,RM.
This experiment aimed at evaluating the influence of the supplementation of digestible lysine and digestible arginine at different ratios in the diet fed to layers between 24 to 44 weeks of age on egg quality. In total,320 Lohmann LSL laying hens were allotted according to a completely randomized design in a 2 x 4factorial arrangement, consisting of two digestible lysine levels (700 or 900 mg/kg of diet) and four digestible arginine levels (700, 800, 900,or 1000 mg/kg of diet). Diets contained, therefore, digestible Lys:Arg ratios of 100, 114, 128, and 142 when the diet contained 700 mg digestible lysine per kg of diet, and 78, 89, 100, and 111 when 900 mg digestible lysine per kg was supplemented. The data obtained with digestible arginine levels were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antagonism; Digestible amino acid; Egg components; Haugh units.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100063
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Energy and amino acid content in phase 1 nursery diet: piglet performance and body chemical composition R. Bras. Zootec.
Trindade Neto,Messias Alves da; Berto,Dirlei Antonio; Nyachoti,Charles Martin; Schammass,Eliana Aparecida.
It was evaluated the effects of metabolizable energy (ME) and digestible lysine (dLYS) densities on performance and body composition of weaned piglets. The study used 114 piglets weaned at 7.4 ± 0.80 kg, out of which 108 were allotted in the nursery and 6 were slaughtered on the weaning day to determine comparative data of body chemical composition. Six nutrients densities were stipulated from a previous study based on the highest nitrogen retention, maintaining the following ME:LYS relationship in the experimental diets: 3,390:1.291; 3,450:1.409; 3,650:1.411; 3,780:1.461; 3,940:1.507; and 4,109 kcal/kg ME:1.564% dLYS. The experimental diets were offered for 13 days when the piglets reached 12.986 ± 1.449 kg of body weight. The probable residual effects of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestible amino acid; Performance; Swine; Weaned.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000600018
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Ideal digestible isoleucine: digestible lysine ratio in diets for laying hens aged 24-40 weeks R. Bras. Zootec.
Rocha,Tatiana Cristina da; Donzele,Juarez Lopes; Gomes,Paulo Cezar; Mello,Heloisa Helena de Carvalho; Troni,Allan Reis; Viana,Gabriel da Silva.
Two hundred fifty-two Hy-Line W36 laying hens were allotted in a randomized block design with 6 treatments, 7 replicates and 6 hens per experimental unit in order to determine the ideal digestible isoleucine: digestible lysine (Ile:Lys) ratio for laying hens aged 24-40 weeks. Experimental diets contained 5.92, 6.33, 6.73, 7.14, 7.54 and 7.95 g/kg of digestible isoleucine, 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). Experimental diets were isonitrogenous, with different dietary contents of glutamic acid, and made isocaloric by adjusting the levels of cornstarch. All essential amino acids were provided proportionally to digestible lysine. Feed intake, egg production, egg weight, egg mass, feed conversion ratio...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestible amino acid; Egg mass; Egg production; Protein.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001100003
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Lysine and zinc chelate in diets for brown laying hens: effects on egg production and composition R. Bras. Zootec.
Trindade Neto,Messias Alves da; Pacheco,Bruna Helena Carvalho; Albuquerque,Ricardo de; Schammass,Eliana Aparecida.
It was evaluated the effects of levels of digestible lysine and chelate zinc combined in the diet for laying on the egg quality. It was used 720 birds, from 48 to 60 weeks of age, distributed in a completely randomized design in a 3 × 5 factorial scheme with three levels of zinc and five levels of lysine, applied into six replicates in the experimental units of eight birds per plot. The levels were: 137, 309 and 655 ppm zinc and 0.482, 0.527, 0.582, 0.644 and 0.732% digestible lysine. It was not observed any interaction among digestible lysine and zinc for the primary variables of fractions and egg composition. Levels of zinc reduced egg weight, suggesting the lowest efficiency in nutrient intake. At the highest dietary concentration of zinc, the addition...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestible amino acid; Lipid and protein deposition.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000200020
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Nutritional levels of digestible methionine + cystine to brown-egg laying hens from 50 to 66 weeks of age R. Bras. Zootec.
Polese,Clauber; Nunes,Ricardo Vianna; Vilela,Christiane Garcia; Agustini,Márcia Antonia Bartolomeu; Takahashi,Sabrina Endo; Vilela,Valter Oshiro; Souza,Cleverson de; Reis,Cândida Camila dos.
The objective of this study was to determine the requirement of digestible methionine + cystine of brown-eggs laying hens from 50 to 66 weeks age at the end of the first production cycle. The design was completely randomized, with 150 Brown Shaver hens, which were distributed in five treatments with six replications of five birds each. Birds received a basal diet with 2857 kcal/kg metabolizable energy and 15.97% crude protein, supplemented with 0.132; 0.174, 0.215, 0.256 and 0.298% DL-methionine (98%), in order to provide 0.572, 0.613, 0.653, 0.693 and 0.734% digestible methionine + cystine. The levels of digestible methionine + digestible cystine followed, respectively, the relations of 67, 72, 77, 81 and 86% with lysine fixed at 0.851%. Feed intake,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestible amino acid; Egg quality; Performance.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700019
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Performance and carcass characteristics of swine at 50 kg fed diets with different energy levels and reduced levels of crude protein Ciência e Agrotecnologia
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
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Poultry offal meal in broiler chicken feed Scientia Agricola
Silva,Edney Pereira da; Rabello,Carlos Bôa-Viagem; Lima,Michele Bernardino de; Ludke,Jorge Vitor; Arruda,Emmanuele Maria Florêncio de; Albino,Luiz Fernando Teixeira.
An outstanding feature of poultry production that provides animal protein yield for human feeding is its short production cycle. This characteristic has a linear relationship with waste production. Increasing the inclusion of this residue in diets in the near future is desirable in step with the growth of poultry production since it offers a better environmental and nutritional alternative to current methods. We evaluated the effects on the performance and carcass characteristics of broiler chickens produced by the inclusion of poultry offal meal (POM) in their feed. Treatments consisted of a control diet (corn, Zea mays and soybean, Glycine max) and four diets with inclusion of 30, 60, 90 and 120 g kg-1 of POM. The diets were formulated based on the level...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative ingredient; Byproduct of poultry; Digestible amino acid.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000300003
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Relationship of arginine with lysine in diets for laying Japanese quails R. Bras. Zootec.
Reis,Renata de Souza; Barreto,Sergio Luiz de Toledo; Abjaude,Walason da Silva; Dutra,Daniel Rodrigues; Santos,Marilú; Paula,Eriane de.
To determine the relationship of arginine with lysine for Japanese quails during the period of production, an experiment was conducted using 360 subspecies of Japanese quails (Coturnix coturnix japonica) with 162 days of age, distributed in a completely randomized design. Diets were formulated with corn, soybean meal, sorghum and wheat bran containing 20.0% crude protein and 2,800 kcal ME/kg. The basal diet contained suboptimal level of lysine equal to 1% and was supplemented with five levels of L-arginine 99% (0.032; 0.083; 0.134; 0.185 and 0.236%) to replace the glutamic acid, corresponding to the relationship of arginine with digestible lysine of 1.16, 1.21, 1.26, 1.31 and 1.36. The parameters studied were: feed intake, egg production per hen/day, egg...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coturnix coturnix japonica; Digestible amino acid; Egg quality; Performance.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000100016
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Relationship of methionine plus cystine with lysine in diets for laying Japanese quails R. Bras. Zootec.
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
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The effect of dietary phytase on broiler performance and digestive, bone, and blood biochemistry characteristics Rev. Bras. Ciênc. Avic.
Sousa,JPL de; Albino,LFT; Vaz,RGMV; Rodrigues,KF; Da Silva,GF; Renno,LN; Barros,VRSM; Kaneko,IN.
The dietary inclusion of phytase increases nutrient and energy bioavailability for broilers. The effect of phytase increases nutrients and energy bioavailability for either the objective of this experiment was to evaluate the influence of nutrient and energy reduction in diets supplemented with phytase on the performance, gastrointestinal pH, organ and bone composition, and blood biochemistry of broilers between eight and 21 days of age. In the study, 1.120 male Cobb 500(r) broilers, with 161±1g average weight, were used. At eight days of age, birds were distributed according to a completely randomized experimental design with seven treatments in a 3x2+1 factorial arrangement with eight replicates of 20 broiler each. Treatments corresponded to reduction of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antagonism; Digestible amino acid; Egg components; Haugh units.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100069
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