Exigência nutricional de lisina digestível para galinhas poedeiras de 54 a 70 semanas de idade

Cupertino, Edwiney Sebastião; Gomes, Paulo Cézar; Albino, Fernando Teixeira; Donzele, Juarez Lopes; Mello, Heloisa Helena de Carvalho; Schmidt, Marlene; Calderano, Arele Arlindo

doi:10.1590/s1516-35982009000300012

Cited by 18 publications

(18 citation statements)

References 12 publications

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“…These results are contrary to those results found by Cupertino et al (2009) and Rocha et al (2009) who verified an increase of the feed intake with an increased lysine level in the diet.…”

Section: Resultscontrasting

confidence: 99%

“…Prochaska and Corey (1993) evaluated birds consuming diets with lysine levels from 0.71 to 1.04%, and observed higher egg weight with increasing levels of lysine in the diet. These results are similar to those found by Cupertino et al (2009) who verified a quadratic response for this measurement and a valuation around 0.71% digestible lysine. However, these results are different from those found by Silva et al (2010), in which no significant responses for this measurement were observed.…”

Section: Resultssupporting

confidence: 92%

“…However, the results were contradictory to those found by Cupertino et al (2009), because these authors verified no effects of lysine levels for the Haugh unit measurement.…”

Section: Resultscontrasting

confidence: 72%

“…Recent studies, under these conditions, have shown that the lysine requirement for actual laying hens is between 760 and 790mg per day; from 0.76 to 0.79% in diet, based on a 100 gram per bird intake (Cupertino et al, 2009;Rocha et al, 2009;Silva et al, 2010).…”

mentioning

confidence: 99%

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Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine

Figueiredo¹,

Bertechini

Fassani

et al. 2012

Arq. Bras. Med. Vet. Zootec.

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The present study was developed using 864 Hy-Line W36 laying hens (42 to 58 weeks of age) with a randomized experimental design in a 4x3 factorial arrangement, with five replicates and 12 birds per experimental unit and 4 evaluation periods of 28 days each. The digestible lysine levels studied were 0.675%, 0.743%, 0.811% and 0.879%, and the digestible threonine levels were 0.542%, 0.596% and 0.650%. The performance and egg quality was evaluated. There were no significant effects on the egg production, specific gravity, albumen and yolk percentage and total solids in albumen and yolk for birds submitted to the different dietary digestible lysine and threonine levels. There was significant interaction between these amino acids on the egg shell percentage and Haugh unit in fresh eggs. There was a decreasing linear effect on the feed intake with increase of digestible lysine level. Egg weight, egg mass and feed conversion demonstrated a quadratic effect with the increase of the digestible lysine level with the best results in the diets with 0.754, 0.772 and 0.795% of digestible lysine, respectively. 0,754; 0,772 e 0,795%, poedeiras, proteína bruta, unidade Haugh

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“…These results are contrary to those results found by Cupertino et al (2009) and Rocha et al (2009) who verified an increase of the feed intake with an increased lysine level in the diet.…”

Section: Resultscontrasting

confidence: 99%

Section: Resultssupporting

confidence: 92%

“…However, the results were contradictory to those found by Cupertino et al (2009), because these authors verified no effects of lysine levels for the Haugh unit measurement.…”

Section: Resultscontrasting

confidence: 72%

mentioning

confidence: 99%

See 2 more Smart Citations

Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine

Figueiredo¹,

Bertechini

Fassani

et al. 2012

Arq. Bras. Med. Vet. Zootec.

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“…Efeito estatístico similar a esse estudo foi observado por Cupertino et al (2009), que verificaram efeito linear para consumo de ração com níveis de 0,492 a 0,700% de metionina + cistina digestível para poedeiras semipesadas de 54 a 70 semanas. Porém, testando os mesmos níveis, no mesmo período, com poedeiras leves, não constataram diferença significativa para consumo de ração.…”

Section: Resultsunclassified

Níveis de metionina + cistina digestível para poedeiras leves no período de 42 a 58 semanas de idade

et al. 2010

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RESUMO -Com o objetivo de determinar os níveis de aminoácidos sulfurosos digestíveis para estabelecer a relação ideal metionina + cistina/lisina em rações para poedeiras leves no período de 42 a 58 semanas de idade, 216 aves da marca comercial Hy-Line W36 foram distribuídas em delineamento de blocos casualizados com seis dietas, seis repetições e seis aves por unidade experimental. O nível de lisina utilizado na dieta experimental foi de 0,770% para consumo médio esperado de 731 mg/ave/dia de lisina e de 95 g/ave/dia de ração. Os níveis de aminoácidos sulfurosos digestíveis foram obtidos a partir de uma dieta basal deficiente em metionina + cistina digestível (0,65%), suplementada com 0,00; 0,05; 0,10; 0,15; 0,20 e 0,25% de DL-metionina (99,2%), de forma a proporcionar relações metionina + cistina/lisina de 84, 91, 97, 104, 110 e 117%. O período experimental teve duração de 16 semanas e foi subdividido em quatro ciclos de coleta dos ovos, cada um de 28 dias. Houve efeito quadrático dos níveis de 0,826% e 0,775% de metionina + cistina digestível sobre a produção de ovos e a eficiência de utilização de lisina por produção total de ovos, respectivamente. O nível de metionina + cistina digestível considerado exigência para poedeiras leves no período de 42 a 58 semanas de idade foi de 0,775%, que corresponde a consumo de 708 mg/ave/dia de metionina + cistina digestível e relação metionina + cistina/lisina de 101%.Palavras-chave: aminoácidos essenciais, exigências nutricionais, galinhas, proteína ideal Digestible methionine + cystine levels for light-weight laying hens from 42 to 58 weeks of age ABSTRACT -Aiming at determining levels of digestible sulfurous amino acids to establish the ideal methionine + cystine/lysine relationship in rations for light-weight laying hens in the period from 42 to 58 weeks of age, 216 birds of the commercial brand Hy-Line W36 were distributed in a randomized block design with 6 diets, 6 repetitions and 6 birds per experimental unit. The level of digestible lysine used in the experimental diet was 0.770% for an expected average consumption of 731 mg/hen/day of lysine and 95 g/hen/day of ration. Levels of digestible sulfurous amino acids were obtained from a basal diet deficient in digestible methionine + cystine (0.65%), supplemented with 0.00; 0.05, 0.10, 0.15, 0.20 and 0.25% of DL-methionine (99.2%), so to provide a methionine + cystine/lysine relationship of 84, 91, 97, 104, 110 and 117%. The experimental period lasted for 16 weeks and it was subdivided in 4 cycles of egg collection, each one corresponding to 28 days. There was a quadratic effect of the digestible methionine + cistine levels of 0.826% and 0.775% on the egg production and lysine utilization efficiency for total egg production, respectively. The digestible methionine + cystine level considered as a requirement for light-weight laying hens in the period from 42 to 58 weeks of age were 0.775%, corresponding to digestible methionine + cystine consumption of 708 mg/hen/day, and a methionine + cystine/ lysine relationship of...

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Amino acid requirements for laying hens: a comprehensive review

et al. 2021

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The main aim of this review is to consolidate the relevant published data examining amino acid requirements of layer hens and to reach a new set of recommendation based on these data. There are inconsistences in lysine, sulphur-containing amino acids, threonine, tryptophan, branched-chain amino acids, and arginine recommendations in data that have surfaced since 1994. This review finds that breed, age, basal diet composition, and assessment method have contributed toward inconsistencies in amino acid recommendations. Presently, the development of reduced-protein diets for layer hens is receiving increasing attention because of the demand for sustainable production. This involves quite radical changes in diet composition with inclusions of nonbound, essential and nonessential amino acids. Increasing inclusions of nonbound amino acids into layer diets modifies protein digestive dynamics, and it may influence amino acid requirements in layer hens. This review considers present amino acid recommendations for layer hens and proposes refinements that may better serve the needs of the layer industry in the future.

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Exigência nutricional de lisina digestível para galinhas poedeiras de 54 a 70 semanas de idade

Cited by 18 publications

References 12 publications

Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine

Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine

Níveis de metionina + cistina digestível para poedeiras leves no período de 42 a 58 semanas de idade

Amino acid requirements for laying hens: a comprehensive review

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