Enzymatic programs for broilers

Sorbara, J. O. B.; Murakami, Alice Eiko; Nakage, Eliane Saiuri; Piracés, Francisco; Potença, Alexandra; Guerra, Rafael Lachinski Holanda

doi:10.1590/s1516-89132009000700030

Cited by 13 publications

(8 citation statements)

References 20 publications

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“…Kaczmarek et al (2014) in a study to evaluate the effect of enzymatic supplementation using isolated amylase or amylase plus protease in corn and soybean meal rations on performance of broiler chickens during on growth, found that there was no effect of supplementation enzymatic activity on weight gain and on feed conversion. Sorbara et al (2009), when using an enzymatic complex containing the enzyme amylase, found that birds fed addition of enzymes showed lower feed intake and weight gain, and there was no difference in feed conversion. Alefzadeh et al (2016) using an enzyme complex (containing phytase, β glucanase, α-amylase, cellulase, pectinase, xylanase, lipase, protease, amilo-glucosidase, hemicellulase, pentosonase, acid phytase, and acid phosphatase) in rations of broilers, verified a better weight gain for the broilers fed the enzymatic complex.…”

Section: Resultsmentioning

confidence: 99%

Effect of different levels of supplementary alpha-amylase in finishing broilers

Castro

Bertechini

Lima

et al. 2019

Acta Sci. Anim. Sci.

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The objective of this study was to investigate the effects of alpha-amylase supplementation on performance and carcass and cuts yield in broilers during finishing phase (21 to 42 days). A completely randomized experimental design with six treatments and eight replications was used: Positive Control (PC): no enzyme; Negative control (NC): without enzyme formulated with 6.34% less energy (- 6.34% ME); NC1: with 250 g ton-1 of alpha-amylase; NC2: with 500 g ton-1 of alpha-amylase; NC3: with 750 g ton-1 of alpha-amylase; NC4: with 1000 g ton-1 of alpha-amylase. Significant differences in weight gain, feed intake and feed conversion were reported with the inclusion of alpha-amylase. The NC treatment with inclusion of amylase provided improvement values of weight gain, feed conversion and feed intake, but do not was similarly in comparison to those obtained in broilers fed a diet that completely met the requirements during this phase. There was no dietary influence on carcass parameters. The use of alpha-amylase was effective in improving performance in broilers fed a diet of 200 kcal kg-1 of reduced metabolizable energy.

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Section: Resultsmentioning

confidence: 99%

Effect of different levels of supplementary alpha-amylase in finishing broilers

Castro

Bertechini

Lima

et al. 2019

Acta Sci. Anim. Sci.

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“…Several studies described the potential of amylase supplementation to improve live performance and nutrient utilization in corn-SBM based-diets while being used in combination with xylanase, NSPs, and protease, suggesting synergism among these feed additives ( Cowieson and Ravindran, 2008 ; Tang et al., 2014 ; Olukosi et al., 2015 ; Amerah et al., 2017 ) at any live production phase of broilers (Berti Sorbara et al., 2009 ). However, other authors observed no beneficial effects on growth performance and starch ileal digestibility when using an exogenous amylase alone ( Kaczmarek et al., 2014b ; Stefanello et al., 2015 , 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Corn kernel hardness, drying temperature and amylase supplementation affect live performance and nutrient utilization of broilers

et al. 2021

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Drying temperature ( DT ) of corn can influence its nutritional quality, but whether this is influenced by endosperm hardness is not clear. Two parallel experiments were conducted to investigate the effects of 2 yellow dent corn hybrids with average and hard kernel hardness, dried at 3 temperatures (35, 80, and 120°C), and 2 supplementation levels of an exogenous amylase (0, 133 g/ton of feed) on live performance, starch and protein digestibility, and energy utilization of Ross 708 male broilers. Twelve dietary treatments consisting of a 2 × 3 × 2 factorial arrangement were evaluated using 3-way ANOVA in a randomized complete block design. In Experiment 1, a total of 1,920 male-chicks were randomly allocated to 96 floor pens, whereas 480 day-old chicks were distributed among 96 cages for Experiment 2. At 40 d, interaction effects ( P < 0.05) were detected on BWG, FCR, and flock uniformity. Supplementation with exogenous amylase resulted in heavier broilers, better FCR and flock uniformity, only in the diets based on corn dried at 35°C. Additionally, interaction effects were observed on FCR due to kernel hardness and DT ( P < 0.01), kernel hardness and amylase supplementation ( P < 0.001), and DT and amylase supplementation ( P < 0.05). Exogenous amylase addition to the diets based on corn with an average hardness improved FCR up to 2 points (1.49 vs. 1.51 g:g) whereas there was no effect of amylase on FCR of broilers fed diets based on corn with hard endosperm. Total tract retention of starch was increased ( P < 0.05) in broilers fed diets based on corn with average kernel hardness compared to hard kernel. Corn dried at 80 and 120°C had up to 1.21% points less starch total tract retention than the one dried at 35°C. Supplementing alpha-amylase resulted in beneficial effects for broiler live performance, energy utilization, and starch total tract digestibility results. Treatment effects on starch characteristics were explored. Corn endosperm hardness, DT and exogenous amylase can influence the live performance of broilers. However, these factors are not independent and so must be manipulated strategically to improve broiler performance.

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“…Gracia et al (2003) ao avaliarem dietas contendo 40 ppm de α-amilase verificaram que aumentou o consumo de ração e o ganho de peso, porém, não houve efeito sobre a conversão alimentar. Já Sorbara et al (2009), ao utilizarem um complexo enzimático contendo a enzima amilase, relataram que as aves alimentadas com rações sem enzimas apresentaram menores consumo de ração e de ganho de peso, não havendo diferenças na conversão alimentar. Cardoso et al (2011) analisando rações com a inclusão de α-amilase exógena na dieta de frangos de corte de 1 a 42 dias de idade, observaram que não houve alteração no desempenho produtivo e nos custo da alimentação das aves com a adição de α-amilase.…”

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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Enzymatic programs for broilers

Cited by 13 publications

References 20 publications

Effect of different levels of supplementary alpha-amylase in finishing broilers

Effect of different levels of supplementary alpha-amylase in finishing broilers

Corn kernel hardness, drying temperature and amylase supplementation affect live performance and nutrient utilization of broilers

Carbohydrases in broiler feed

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