Utilização da glutamina, associada ao ácido glutâmico, sobre o desenvolvimento e a atividade enzimática em frangos de corte

Sakamoto, Márcia Izumi; Faria, Douglas Emygdio de; Nakagi, Vanessa de Souza; Negrão, João Alberto; Araújo, Raquel Bighetti; Souza, Karina Márcia Ribeiro de; Previero, Thiago de Campos

doi:10.1590/s0102-09352011000400023

Cited by 6 publications

(8 citation statements)

References 16 publications

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“…In the present study, glutamine supplementation had no effect (P>0.05) on production viability for any of the periods evaluated in contrast with a study by Sakamoto et al (2011), who reported a quadratic effect of supplementation with glutamine associated with glutamic acid on productive efficiency, which rose by up to 2.8% with supplementation. In the present study, despite the absence of significant differences, production viability values were relatively low, probably because no antibiotics or anticoccidials were added to the diets in the early stages.…”

Section: Resultscontrasting

confidence: 99%

“…Sakamoto et al (2011) found that supplementing glutamine in association with glutamic acid to broilers from 1 to 42 days of age had no effect on weight gain, feed intake, or feed conversion. Zavarize et al (2011) found no effects of supplementation on performance in the period from 1 to 42 days.…”

Section: Resultsmentioning

confidence: 92%

“…Linear increases in final weight and weight gain, as well as improved feed conversion, were observed by Sakamoto et al (2011) upon supplementing 0.5, 1.5, 3.0, and 5.0% glutamine associated with glutamic acid to the diets of broilers from 1 to 21 days of age. However, the vitamin and mineral supplement used in their study contained nicarbazin, an anticoccidial that can promote mineral and amino acid absorption, thus preventing gut epithelial damage by Eimeria.…”

Section: Resultsmentioning

confidence: 95%

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Glutamine supplementation plans for broilers reared in high-temperature environments

et al. 2017

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-The purpose of this study was to evaluate the effect of glutamine supplementation plans on performance, carcass yield, and cut yield of broilers reared in a high-temperature environment. A fully randomized design was adopted for the experiment, comprising 900 male Hubbard broiler chicks assigned to five treatment groups (0% glutamine from one to 42 days of age; 0.5% glutamine from 1 to 7 days of age, followed by 0% from 8 to 42 days; 1.0% glutamine from 1 to 7 days of age, followed by 0.5% from 8 to 14 days and 0% from 15 to 42 days; 1.5% glutamine from 1 to 7 days of age, followed by 1.0% from 8 to 14 days, 0.5% from 15 to 21 days, and 0% from 22 to 42 days; 2.0% glutamine from 1 to 7 days of age, followed by 1.5% from 8 to 14 days, 1.0% from 15 to 21 days, and 0% from 22 to 42 days), consisting of six replicates of 30 animals each. The experiment was composed of four periods: pre-starter (1-7 days), starter (8-21 days), grower (22-33 days), and finisher (34-42 days). Glutamine supplementation plans up to 21 days do not improve the performance of broilers in the periods from 1 to 21 and from 1 to 42 days of age reared in a high-temperature environment. Carcass yields and cuts of broilers at 42 days of age are not changed by glutamine supplementation for up to 21 days.

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Section: Resultscontrasting

confidence: 99%

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 95%

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Glutamine supplementation plans for broilers reared in high-temperature environments

et al. 2017

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“…Se ejecutaron dos meta-análisis a partir de un total de 22 artículos científicos (1814 animales). (Avellaneda et al, 2008;Ayazi, 2014;Bartell & Batal, 2007;Dai et al, 2009;Dai et al, 2011;Fasina et al, 2010;Hu et al, 2016;Jazideh et al, 2014;Luquetti et al, 2016;Maiorka et al, 2016;Manvailer et al, 2015;Murakami et al, 2007;Muro et al, 2015;Mussini et al, 2012;Namroud et al, 2017;Nascimento et al, 2014;Nassiri Moghaddam & Alizadeh-Ghamsari, 2013;Olubodun et al, 2015;Ribeiro et al, 2015;Sakamoto et al, 2011;Soltan, 2009;Zavarize et al, 2011). Para explicar la heterogeneidad entre los estudios se realizaron meta-regresiones utilizando como covariables: nivel de inclusión de Gln (%), edad de inicio de suplementación (días), edad de evaluación (días), duración de la suplementación (días), número de repeticiones por tratamiento, número de pollos muestreados por unidad experimental (repetición), nivel de lisina (%) y proteína cruda en la dieta (%).…”

Section: Análisis Estadísticounclassified

Suplementación alimenticia de glutamina sobre el desempeño productivo en pollos de engorde

Gaibor

Torres

Yupanqui

et al. 2019

SIEMBRA

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El objetivo de esta investigación fue evaluar el tamaño del efecto de la suplementación de glutamina sobre el rendimiento productivo de pollos de engorde, la consistencia de su efecto y la influencia de otros factores mediante el uso de meta-análisis. Se encontró que la suplementación de glutamina favorece el aprovechamiento de nutrientes reflejado en menores valores de conversión alimenticia (calculada con ganancia de peso) 1,484 versus 1,518, y un tamaño medio de efecto de -0,031 (diferencia de medias) (P=0,00005). Los pollos control requieren consumir 31 g adicionales de alimento para producir 1 kg de peso ganado en comparación con el grupo que sí recibió el aminoácido en estudio. Cuando la variable analizada fue conversión alimenticia (calculada con peso vivo) (1,468 vs. 1,478), se determinó que los pollos sin glutamina requieren de 15 g adicionales de alimento para producir 1 kg de peso vivo (diferencia de medias= -0,015; P=0,00001). No se encontró un efecto consistente entre los estudios realizados, presentándose valores elevados en el test de inconsistencia, 100% y 81,6% para las dos formas de conversión de alimento. Las meta-regresiones señalan que factores relacionados al diseño del experimento o ciertos niveles de nutrientes tienen impacto sobre la variable en estudio. Se concluye que la suplementación de glutamina favorece el rendimiento productivo en pollos de engorde. Sin embargo, se debe considerar el diseño del estudio y la formulación de la dieta

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“…Esse fato pode ser explicado pela falta de carboidratos no saco vitelino e a demora na secreção de PUBVET v.10, n.11, p.861-872, Nov., 2016 enzimas se deve a adaptação das secreções aos nutrientes ingeridos pelo pinto nas primeiras horas, sendo assim a α-amilase é substrato dependente (Tavernari and Mendes, 2009). Sakamoto et al (2011) descreveram que a maior atividade da amilase nas aves se dá aos 14 dias de idade, coincidindo com o maior crescimento do pâncreas. A ação diminui com o avançar da idade e o desenvolvimento máximo do pâncreas ocorre na segunda semana.…”

Section: Amilaseunclassified

Carbohydrases in broiler feed

Silva¹,

Rodrigues²,

Gouveia³

et al. 2016

Pubvet

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A suplementação de enzimas exógenas em rações avícolas tem sido motivo de diversos estudos nos dias atuais, pois com a inclusão de carboidrases melhora o valor nutritivo das dietas de frangos de corte, principalmente àquelas a base de milho, sorgo e farelo de soja. Os fatores antinutricionais contidos nestas dietas reduzem a performance do animal, porém as enzimas exógenas adicionadas à alimentação, tornam os nutrientes, que não seriam utilizados, acessíveis a absorção intestinal das aves, melhorando o desempenho zootécnico e aumentando a digestibilidade. Esta revisão é feita com intuito de mostrar a ação de carboidrases (arabinase, β-glucanase, celulase, hemicelulase, pectinase e xilanase) na alimentação de frangos de corte e o aproveitamento de compostos orgânicos pelo organismo animal para melhorar os índices zootécnicos, desempenho e digestibilidade.

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Utilização da glutamina, associada ao ácido glutâmico, sobre o desenvolvimento e a atividade enzimática em frangos de corte

Cited by 6 publications

References 16 publications

Glutamine supplementation plans for broilers reared in high-temperature environments

Glutamine supplementation plans for broilers reared in high-temperature environments

Suplementación alimenticia de glutamina sobre el desempeño productivo en pollos de engorde

Carbohydrases in broiler feed

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