Nutrição proteica de poedeiras comerciais

Gambaro, Diogo do Valle

doi:10.11606/d.10.2014.tde-01102014-161305

Cited by 5 publications

(11 citation statements)

References 15 publications

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“…In contrast, Bendezu et al (2015) observed that the increase in Met + Cys content coincided with a lower egg weight for laying hens in the first production cycle. Although different studies provide contrasting results, the level of methionine in laying diets is related to egg weight (Bunchasak & Silapasorn, 2005;Brumano, 2009;Gambaro, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…Increased egg production was observed by Solarte, Rostagno, Soares, Silva and Velasquez (2005) when laying hens received 0.684% methionine plus cystine (Met + Cys). According to Gambaro (2014), birds fed 0.77% Met + Cys had higher egg weights, compared to birds fed diets with only 0.66% Met + Cys. Barbosa et al (1999) observed the same change in egg weight when Met + Cys were included in the diet of white and brown egg-laying hens.…”

Section: Introductionmentioning

confidence: 99%

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Dietary levels of methionine plus cystine and chelated copper on the chemical composition of eggs and yolk cholesterol of 49-week-old brown laying hens

Souza

Neto

2020

SCA

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Highlights:Interaction of dietary levels of methionine + cystine and organic copper. Chemical composition of the egg. Met + Cys was determinant on yolk cholesterol concentration in laying hens. AbstractThe present study aims to evaluate the possible interactions of dietary levels of methionine plus cystine (Met + Cys) and organic copper (Cu) on the chemical composition of eggs, using 320 Hy-Line Brown hens at 49 weeks of age. Composition and deposition variables were evaluated in a 4 × 5 factorial arrangement, with total analysed levels of 18, 44, 71, and 99 mg kg -1 of Cu and 0.613, 0.631, 0.816, 0.918, and 0.955% Met + Cys. We allocated four replicate cages (four hens/cage) to each treatment group. Two eggs per plot were sampled to determine the chemical composition of albumen and yolk, based on natural and dry matter and on daily rates of deposition. An interaction effect of Met + Cys and Cu levels was observed for deposition rates of ash and Cu in the yolk, and the chemical composition of Ethereal Extract (EE) and ash in eggs, EE in albumen and Nitrogen, EE, and ash in the yolk. An isolated effect was observed for Met + Cys on egg chemical composition and on shell and yolk fractions, as well as on deposition rates of albumen N, EE, and ash, and yolk EE. The yolk cholesterol content increased by 18.17% with increasing Met + Cys in diets. In conclusion, the chemical composition of eggs varied with dietary Met + Cys and organic Cu concentrations. Dietary levels of Met + Cys determined the yolk cholesterol concentration in laying hens. ResumoO presente estudo teve como objetivo avaliar as possíveis interações dos níveis alimentares de metionina mais cistina (Met + Cys) e cobre orgânico (Cu) na composição química dos ovos, utilizando 320 galinhas Hy-Line Brown com 49 semanas de idade. As variáveis de composição e deposição foram avaliadas em arranjo fatorial 4 × 5, com níveis totais analisados de 18, 44, 71 e 99 mg kg-1 de Cu e 0,613, 0,631, Semina: Ciências Agrárias, Londrina, v. 41, n. 1, p. 269-282, jan./fev. 2020 Souza, J. C. S. M. et al.0,816, 0,918 e 0,955% de Met + Cys. Alocaram-se quatro gaiolas replicadas (quatro galinhas / gaiola) para cada grupo de tratamento. Foram amostrados dois ovos por parcela para determinar a composição química do albúmen e da gema, com base na matéria natural e seca e nas taxas diárias de deposição. Foi observado um efeito de interação dos níveis de Met + Cys e Cu para as taxas de deposição de cinzas e Cu na gema e composição química do Extrato Etéreo (EE) e cinzas nos ovos, EE no albume e nitrogênio, EE e cinzas na gema. gema. Um efeito isolado foi observado para Met + Cys na composição química dos ovos e nas frações de casca e gema, bem como nas taxas de deposição de N no albúmen, EE e cinzas e gema EE. O teor de colesterol na gema aumentou 18,17% com o aumento de Met + Cys nas dietas. A composição do ovo variou com as concentrações de Met + Cys e Cu orgânico. Os níveis alimentares de Met + Cys determinaram a concentração de colesterol na gema em galinhas poedeiras. Palavras-c...

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dietary levels of methionine plus cystine and chelated copper on the chemical composition of eggs and yolk cholesterol of 49-week-old brown laying hens

Souza

Neto

2020

SCA

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“…Sin embargo, la información disponible sobre los requerimientos nutricionales de metionina + cistina digerible en gallinas ponedoras comerciales ligeras y semipesadas es escasa (D'Agostini et al, 2017). Para estos animales, el ajuste en el nivel de proteína y de aminoácidos en la dieta es esencial, debido a la gran demanda de estos nutrientes para la síntesis del huevo, albumen y yema (Gambaro, 2014).…”

Section: Introductionunclassified

Efectos de diferentes niveles de proteína y aminoácidos azufrados en el rendimiento productivo de gallinas ponedoras

Arquiñego-Alderete

Cantaro-Segura

Cumpa-Gavidia

2021

CTA

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El objetivo de la presente investigación fue evaluar el efecto de tres niveles de proteína (15,0 %, 16,5 % y 18,0 %) y tres niveles de aminoácidos azufrados (0,71 %, 0,78 %, 0,86 %) sobre el comportamiento productivo y calidad de los huevos en gallinas. Se emplearon 216 gallinas de postura de la línea Hy-Line Brown de 25 semanas de edad, en la que los nueve tratamientos fueron distribuidos en un diseño completamente al azar con un arreglo factorial de 3 × 3, con una duración del experimento de 12 semanas. La mayor producción de huevos fue registrada en las aves alimentadas con 18,0 % de proteína bruta (PB), mientras que el mayor peso de huevo fue obtenido con 15,0 % de PB. La mayor ganancia de peso se obtuvo con las dietas que contenían 16,5 % de PB. A excepción de la ganancia de peso, no se observaron efectos significativos (p > 0,05) de los niveles de metionina + cistina sobre los factores estudiados, donde la mayor ganancia de peso se obtuvo con el nivel de metionina + cistina de 0,86 %. Las mayores retribuciones económicas se obtuvieron con los niveles de proteína y aminoácidos azufrados de 16,50 % y 0,71 % o 15,00 % y 0,86 %, respectivamente.

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“…Segundo Gambaro (2014), aves que receberam dietas contendo 0,77% de met +cys apresentaram maiores pesos de ovos quando comparados as aves que receberam a dieta com apenas 0,66% de met + cys. Em Barbosa et al (1999), o mesmo comportamento para peso de ovos foi observado, a inclusão de met + cys à dieta de poedeiras de ovos brancos e marrons.…”

Section: Aminoácido Sulfuradounclassified

“…A utilização do aminoácido sulfurado met + cys resulta em, aumento do peso dos ovos (GAMBARO, 2014;BENDEZU et al, 2015;KAKHKI et al, 2016; BARBOSA), altera a porcentagem do conteúdo dos ovos gema, albúmen e casca , produção de ovos (SOLARTE et al, 2005) e minimiza os efeitos poluentes causados pela excreção de N .…”

Section: Aminoácido Sulfuradounclassified

<b>Níveis dietéticos de metionina e cobre quelatado, treonina e zinco quelatado sobre a composição química do ovo e o teor de colesterol da gema</b>

Souza¹

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However, the main effect of Met + Cys was observed (P <0.05) for the following variables: egg shell and yolk weight; deposition of nitrogen (N), ether extract (EE) in albumen and ash; chemical composition of the egg in natural and dry matter (CP, EE and Ash in the albumen, reconstituted egg and DM in albumen) for the total cholesterol. The effect of the increase in a Met + Cys levels resulted in an increase of 18.17% in the cholesterol content. Experiment 2: the interaction effect (P < 0.05) between Thr* Zn was observed for most of the observed variables. However, the main effect (P < 0.05) of the amino acid was observed for the following variables: egg shell and yolk weights, in the chemical composition of the egg in the NM (EE yolk), where the increase in Thr levels resulted in increased of yolk EE, Therefore, it is concluded that in both experiments the chelated mineral utilization in laying diets can bring benefits to egg quality, improving some parameters of the egg chemical composition.

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Nutrição proteica de poedeiras comerciais

Cited by 5 publications

References 15 publications

Dietary levels of methionine plus cystine and chelated copper on the chemical composition of eggs and yolk cholesterol of 49-week-old brown laying hens

Dietary levels of methionine plus cystine and chelated copper on the chemical composition of eggs and yolk cholesterol of 49-week-old brown laying hens

Efectos de diferentes niveles de proteína y aminoácidos azufrados en el rendimiento productivo de gallinas ponedoras

<b>Níveis dietéticos de metionina e cobre quelatado, treonina e zinco quelatado sobre a composição química do ovo e o teor de colesterol da gema</b>

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