Frangos de corte alimentados com dietas de diferentes densidades nutricionais suplementadas ou não com enzimas

Toledo, Geni Salete Pinto de; Costa, Paulo Tabajara Chaves; Silva, Jose Henrique; Ceccantini, Márcio; Poletto, Cesar Junior

doi:10.1590/s0103-84782007000200034

“…Toledo et al (2007) support this result in a study that evaluated the enzyme complex supplementation of broiler diets up to 35 days of age, verifying that birds require higher metabolizable energy due to lower digestive capacity. Similarly, Yang et al (2010) and Schramm et al (2016) attributed the inefficacy of exogenous enzymes to nutritional imbalance, which inhibits the activity of enzymes that improve nutrient degradation, digestion, and absorption.…”

Section: Resultssupporting

confidence: 55%

“…Corn contains non-starch polysaccharides soluble at lower concentrations than soybean meal, but its overall contribution may be substantial due to its high inclusion rate (COWIESON; ADEOLA, 2005;WEST et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Performance and physiological parameters in broilers fed different enzyme complexes

Andrade

¹

,

Nunes

²

,

Silva

³

et al. 2017

SCA

0

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The effects of enzyme supplementation on the performance, yield, and blood profile of broilers fed corn and soybean diets from 1 to 42 days of age were evaluated. A total of 960 male broilers were used, distributed in a completely randomized design, with six treatments and eight replications. Two diets were used: a positive control formulated to meet the birds' nutritional requirements (Diet 1) and a negative control diet with reduction of 150 kcal.kg -1 of metabolizable energy (Diet 2) and 12% amino acid in the initial phase and 18% during the growing and finishing phases. Further diets were based on the negative control with enzymes: enzyme complex 1, composed of 125 g ton -1 protease; enzyme complex 2, composed of 100 g ton -1 amylase, protease, and xylanase; enzyme complex 3, composed of 500 g ton -1 amylase, protease, and xylanase; and enzyme complex 4, composed of 125 g ton -1 protease and 500 g ton -1 beta-mannanase. Enzymatic supplementation did not improve performance during the initial and growing phases due to nutritional imbalance, resulting in the worst weight gain and feed conversion during the finishing phase. Carcass yield, leg yield, abdominal fat, and pancreas were altered by enzymatic supplementation. Triglyceride levels influenced abdominal fat deposition, and the serum levels of albumin and alanine aminotransferase were altered by enzymatic supplementation. Enzymatic supplementation was not effective in restoring broiler performance, carcass yield, and cuts, with changes in the serum biochemical profile of the broiler chickens. Key words: Amylase. Metabolizable energy. Protease. Xylanase. ResumoEste trabalho foi realizado para avaliar os efeitos da suplementação enzimática sobre o desempenho, rendimento e perfil sanguíneo em frangos de corte alimentados com dietas de milho e soja no período de 1 a 42 dias de idade. Foram utilizados 960 machos, distribuídos em um delineamento inteiramente casualizado com seis dietas e oito repetições, sendo formuladas duas rações, o controle positivo para atender as exigências nutricionais e o controle negativo com redução de 150 kcal kg -1 de energia metabolizável e 12% de aminoácidos nas fases iniciais e 18% nas fases de crescimento e terminação,

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“…The reduction in nutritional requirement (NC), impaired weight gain (Table 4), and feed conversion (Table 5) in broilers during the pre-initial (1-7 days), initial (1-21 days), and growing phases (1-35 days) and supplemental enzyme complexes were not enough to restore the diet. Toledo et al (2007) support this result in a study that evaluated the enzyme complex supplementation of broiler diets up to 35 days of age, verifying that birds require higher metabolizable energy due to lower digestive capacity. Similarly, Yang et al (2010) and Schramm et al (2016) attributed the inefficacy of exogenous enzymes to nutritional imbalance, which inhibits the activity of enzymes that improve nutrient degradation, digestion, and absorption.…”

Section: Dietssupporting

confidence: 55%

“…Corn and soybean meal are the most used ingredients in poultry diets in much of the world, and they are known to contain different anti-nutritional factors that may obstruct digestion and absorption of nutrients (YEGANI; KORVER, 2013), including carbohydrates and proteins in the digestive tract (YU; CHUNG, 2004). Corn contains non-starch polysaccharides soluble at lower concentrations than soybean meal, but its overall contribution may be substantial due to its high inclusion rate ADEOLA, 2005;WEST et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Performance and physiological parameters in broilers fed different enzyme complexes

Andrade

¹

,

Nunes

²

,

Silva

³

et al. 2017

SCA

2

0

View full text Add to dashboard Cite

The effects of enzyme supplementation on the performance, yield, and blood profile of broilers fed corn and soybean diets from 1 to 42 days of age were evaluated. A total of 960 male broilers were used, distributed in a completely randomized design, with six treatments and eight replications. Two diets were used: a positive control formulated to meet the birds’ nutritional requirements (Diet 1) and a negative control diet with reduction of 150 kcal.kg-1 of metabolizable energy (Diet 2) and 12% amino acid in the initial phase and 18% during the growing and finishing phases. Further diets were based on the negative control with enzymes: enzyme complex 1, composed of 125 g ton-1 protease; enzyme complex 2, composed of 100 g ton-1 amylase, protease, and xylanase; enzyme complex 3, composed of 500 g ton-1 amylase, protease, and xylanase; and enzyme complex 4, composed of 125 g ton-1 protease and 500 g ton-1 beta-mannanase. Enzymatic supplementation did not improve performance during the initial and growing phases due to nutritional imbalance, resulting in the worst weight gain and feed conversion during the finishing phase. Carcass yield, leg yield, abdominal fat, and pancreas were altered by enzymatic supplementation. Triglyceride levels influenced abdominal fat deposition, and the serum levels of albumin and alanine aminotransferase were altered by enzymatic supplementation. Enzymatic supplementation was not effective in restoring broiler performance, carcass yield, and cuts, with changes in the serum biochemical profile of the broiler chickens.

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“…With this, the profitability index was slightly higher in the diet containing EC1. In studies developed by Toledo, Costa, Silva, Ceccantini, and Poletto Junior (2007), the savings from the use of exogenous enzymes in low-density diets was 7.02% in relation to the standard diet, considering an industrial production scale of 1,000 tons body weight.…”

Section: Resultsmentioning

confidence: 99%

<b>Performance and economic viability of broiler chicken fed diets with multienzyme complexes

Pasquali

¹

,

Oliveira

²

,

Aiello

³

et al. 2017

Acta Sci. Anim. Sci.

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ABSTRACT. This study evaluated the effect of multienzyme complexes (EC1 and EC2) in low nutritional density diets on performance and economic viability of broilers. A total of 840 day-old chicks were assigned to 7 treatments, distributed in a completely randomized design: (1) PC: positive control, basal diet formulated to meet nutritional requirements; (2) NC1: negative control, reduced energy and nutrient density diet without enzymes; (3) NC1+EC1; (4) NC2: negative control, diet formulated with 7% over-estimated crude protein and amino acids of soybean meal without enzymes; (5) NC2+EC2; (6) NC3: negative control, reduced energy and nutrient density diet and over-estimation of crude protein and amino acids of soybean meal; (7) NC3+EC1+EC2. Feeding NC1 or NC3 impaired feed conversion ratio at 7, 21 and 42 days, and NC2 at 21 days. Inclusion of EC2 in NC2 diet improved feed conversion ratio and kept it similar to basal diets from 1 to 21 days. Association of EC1 with EC2 in NC3 diet did not improve performance. In summary, inclusion of EC2 in diets with reduced nutrient density keep feed conversion ratio similar to basal diets from 1 to 21 days but does not improve performance of broiler chicken from 1 to 42 days post-hatch.Keywords: exogenous enzymes, poultry, enzyme complexes.Desempenho e viabilidade econômica com utilização de complexos enzimáticos em dietas para frangos de corte RESUMO. Avaliou-se o efeito da inclusão de complexos enzimáticos (CE1 e CE2) em dietas com níveis reduzidos sobre desempenho e viabilidade econômica de frangos. Foram utilizados 840 pintos, distribuídos em delineamento inteiramente casualizado com sete tratamentos e quatro repetições: 1) controle positivo (CP), dieta formulada para atender às exigências nutricionais; 2) controle negativo 1 (CN1), dieta com níveis nutricionais reduzidos; 3) CN1+CE1; 4) CN2: dieta com proteína e aminoácidos do farelo de soja valorizados em 7%; 5) CN2+CE2; 6) CN3: dieta com níveis reduzidos, e farelo de soja valorizado em 7% para proteína e aminoácidos; 7) CN3+CE1+CE2. A conversão alimentar foi maior em aves que receberam dietas CN1 ou CN3 aos sete, 21 e 42 dias, e CN2 aos 21 dias. A inclusão de CE2 na dieta CN2 melhorou a conversão alimentar em relação a CN2, tornando-a semelhante à de aves alimentadas com dieta CP aos 21 dias. A associação de CE1+CE2 na dieta CN3 não favoreceu o desempenho. Portanto, o uso de complexo enzimático (CE2) em dieta com níveis reduzidos mantém a conversão alimentar similar à de aves recebendo dieta-padrão no período de um a 21 dias, porém, no período de um a 42 dias, não melhora o desempenho de frangos.Palavras-chave: enzimas exógenas, aves, complexos multienzimáticos.

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Frangos de corte alimentados com dietas de diferentes densidades nutricionais suplementadas ou não com enzimas

Cited by 5 publications

References 2 publications

Performance and physiological parameters in broilers fed different enzyme complexes

Performance and physiological parameters in broilers fed different enzyme complexes

Performance and physiological parameters in broilers fed different enzyme complexes

<b>Performance and economic viability of broiler chicken fed diets with multienzyme complexes

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