Utilização de xilanase em dietas compostas por milho e farelo de soja de poedeiras comerciais em postura

Viana, Maurício Tárcio dos Santos; Albino, Luiz Fernando Teixeira; Rostagno, Horácio Santiago; Silva, Eliane Aparecida da; Vieira, Ricardo Augusto Mendonça; Ribeiro, Valdir

doi:10.1590/s1516-35982011000200021

Cited by 9 publications

(4 citation statements)

References 9 publications

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“…The present results corroborate those obtained by Viana et al (2011), who concluded that there are no differences in the metabolizability coefficients of dry matter and metabolizable energy of Bovans Goldline layers fed corn-and soybean-based diets with two levels of metabolizable energy (2,900 and 2,755 kcal.kg -1 ) with or without xylanase inclusion (Econase XT25 ® ). Strada et al (2005) also used an enzyme complex at the rate of 155 ppm in a diet enriched with 5 and 7% amino acids and 7 and 9% metabolizable energy and did not find significant differences in the growth of broilers fed diets containing corn, soybean meal, and sorghum or pearl millet.…”

Section: Discussionsupporting

confidence: 92%

Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens

et al. 2019

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The objective of this study was to evaluate levels of inclusion of an enzyme complex (EC) in corn-and soybean meal-based diets for laying hens on the digestibility of nutrients and energy. A metabolism trial was conducted using 75 Dekalb Brown laying hens at 26 weeks of age, which were distributed into five treatments with five replicates in a completely randomized design. The ingredients used in the diets received an additional (enriched) 3% methionine, lysine, cysteine, threonine, tryptophan, and metabolizable energy and 33.3% phosphorus. Treatments consisted of diets including 0, 150, 200, 250, or 300 mg.kg-1 EC. We determined apparent metabolizable energy (AME); nitrogen-corrected AME (AMEn); apparent metabolizability coefficients of dry matter (DM AM), crude protein (CP AM), gross energy (GE AM), and phosphorus (P AM); digestible crude protein (CP D); and intake, retention, and excretion of phosphorus. No effects of EC levels were detected on the metabolizable energy values or digestibility coefficients, except for CP AM , which showed a quadratic response (maximum coefficient at 89.0 mg.kg-1 EC). A quadratic effect was also observed for CP D (minimum at 115 mg.kg-1 EC), P excretion (maximum at 173.2 mg.kg-1 EC), and P retention (maximum at 122.4 mg.kg-1 EC) when EC was used. The use of the EC in corn-and soybean meal-based diets for laying hens improves their ileal digestibility of protein and apparent digestibility of phosphorus. However, EC addition to the diets does not affect AME, AMEn, or their metabolizability coefficients.

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Section: Discussionsupporting

confidence: 92%

Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens

et al. 2019

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“…The literature shows the possibility of energy reduction of up to 200 kcal/kg of ME in the diet containing XP, which is higher than the absolute majority of reductions observed in the studies: up to 100 kcal of ME/kg (Souza et al, 2012), 120 (Iwahashi et al, 2011), 125 (Cowieson, 2010), 145 (Viana et al, 2011), and 154 kcal of ME/kg (Bobeck et al, 2014).…”

Section: Test1mentioning

confidence: 63%

Xylanases in diets with alternative feeds and energy reduction in commercial layers

Andrade

Garcia

Kiefer

et al. 2021

Semina: Ciênc. Agrár.

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The use of alternative ingredients has been increasing in a continuing attempt to reduce production costs, along with the use of additives, such as carbohydrases, for their possible positive effects on nutrient metabolization by layers. Thus, this study aimed to evaluate the effects of different xylanases in diets with reduced metabolizable energy (ME) and the inclusion of alternative ingredients on the metabolizability of nutrients in diets for commercial laying hens, by conducting two metabolism tests. In the first trial,100 layers hens were distributed in a fully randomized 2 × 2 + 1 factorial design (two metabolizable energy reductions × two xylanases, plus one control diet). In the second assay,140 layer hens were distributed in a fully randomized 2 × 3 + 2 factor design (two xylanases× three ingredients, plus two control diets, positive and negative). It was concluded that supplementation with pantanal xylanase improved the metabolizability of nutrients in corn-based diets and soybean meal for light commercial layers, allowing for a reduction of up to 200 kcal/kg of ME in the diets. Xylanases are more effective on wheat bran enabling a decrease of 150 kcal/kg of ME in commercial laying diets without affecting nutrient metabolizability. The action of pantanal xylanase in diets containing fibrous ingredients was similar to that of commercial xylanase.

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“…Suplementação enzimática... GOMES et al ISSN 1982-1131 Tabela 4: Índices víscerossomático, hepatossomático, lipossomático e rendimento de carcaça de Tilápia do nilo alimentadas com dieta padrão e reformulada com suplementação com complexo enzimático. Adição de enzimas ou complexos enzimáticos em rações para não ruminantes tem apresentado resultados positivos em dietas com redução energética para poedeiras comerciais (VIANA et al, 2011) e frangos de corte (BAR-BOSA et al, 2012), porém, pesquisas com redução proteica e inclusão de complexo enzimática para peixes ainda são escassas.…”

Section: Dietaunclassified

Suplementação Enzimática Sobre Desempenho E Taxa De Excreção De Amônia Em Tilápia Do Nilo

Gomes

Silva

Filho

et al. 2019

ArqVet

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O uso de enzimas exógenas em rações para peixes viabiliza benefícios como a possibilidade de empregar ingredientes que possuem nutrientes pouco disponíveis aos animais, por estes não produzirem as enzimas necessárias, além de contribuir para a redução de poluentes como fósforo e nitrogênio na água. O presente estudo tem como objetivo principal avaliar o impacto da inclusão de um complexo enzimático no desempenho e taxa de excreção de amônia em tilápias. Foram formuladas duas rações experimentais, sendo uma “padrão” e uma “reformulada” valorizada com suplementação enzimática nos níveis de 0,025; 0,050 e 0,075%. No primeiro ensaio parâmetros avaliados foram desempenho e índices corporais. Estes foram influenciados positivamente pela suplementação enzimática em dietas isoprotéicas e isoenergéticas. No segundo ensaio foi avaliada a taxa de amônia total (NH3+NH4) dos peixes. Foram utilizadas tilápias do Nilo com peso médio inicial de 21±0,4g; os peixes que receberam ração com inclusão de 0,025% do complexo enzimático apresentaram as menores taxas de excreção de amônia. Recomendando a suplementação com complexo enzimático por influenciar positivamente nos índices produtivos e, ao nível de 0,025% reduzir a excreção de amônia.

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Utilização de xilanase em dietas compostas por milho e farelo de soja de poedeiras comerciais em postura

Cited by 9 publications

References 9 publications

Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens

Enzyme complex at different levels in diets with enriched ingredients for commercial laying hens

Xylanases in diets with alternative feeds and energy reduction in commercial layers

Suplementação Enzimática Sobre Desempenho E Taxa De Excreção De Amônia Em Tilápia Do Nilo

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