Complexos enzimáticos sobre a energia metabolizável e digestibilidade dos nutrientes do milheto para frangos de corte

Moura, F.A.S.; Dourado, Leilane Rocha Barros; Farias, Leonardo Atta; Lopes, João Batista; Lima, Stélio Bezerra Pinheiro de; Fernandes, Mirian Lima

doi:10.1590/1678-4162-10021

Cited by 4 publications

(5 citation statements)

References 15 publications

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“…Similarly, Kaczmarek et al (2014) also did not observe an effect of including protease and amylase in the chicken diet on AMEn. Conversely, most studies involving the use of enzyme complexes demonstrate a superiority of these treatments when compared with control birds, fed a diet without enzyme inclusion (Abdollahi, Hosking, Ning, & Ravindram, 2016;Amerah, Romero, Awati, & Ravindram, 2017;Moura et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

“…Due to the high cost of feed production in poultry farming which may range from 60 to 75% of total broiler production costs (Dosković et al, 2013) , the use of exogenous enzymes is increasingly necessary, since their action on the feed can increase the digestibility and utilization of nutrients. These enzymes act directly on various substrates, in addition to destroying anti-nutritional factors present in some feedstuffs and enhancing the action of endogenous enzymes (Moura et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…The use of enzymes in chicken diets, e.g., amylase, protease, xylanase and phytase, among others, in the form of an enzyme complex and/or in isolation, is widely accepted and disseminated by researchers, as studies have demonstrated improvements in performance, nutrient digestibility and intestinal health (Tang, Hao, Liu, Nian, & Ru, 2014;Cowieson, Lu, Ajuwon, Knap, & Adeola, 2016;Walk, Juntunen, Paloheimo, & Ledoux, 2019;Moura et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Use of different combinations of enzyme complexes in broiler diets

Neto

Martins

Carvalho

et al. 2021

Semina: Ciênc. Agrár.

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Two experiments were carried out to investigate the effect of “on top” addition of different enzyme complexes, the enzyme α-galactosidase and three sources of the enzyme phytase available on the market, in broiler diets. In the first experiment, 1260 one-day-old Cobb 500® chicks were distributed into seven treatments in a completely randomized design (CRD) with six replicates and 30 birds/replicate. Treatments consisted of combinations of different enzyme complexes, namely, complex A (phytase, protease, xylanase, ß-glucanase, cellulase, amylase, pectinase), complex B (protease and cellulase) and complex C (xylanase, amylase and protease); isolated α-galactosidase (GAL); and three sources of phytase (P1, P2 and P3) in the diet. The treatments were formulated as follows: T1 - basal diet (BD); T2 - BD + enzyme complex A + enzyme complex B (BDAB); T3 - BDAB + GAL; T4 - BD + complex A + GAL; T5 - BD + complex C + P1 + GAL (BDCG); T6 - BDCG + P2; and T7 - BDCG + P3. The following variables were measured in the experimental period of 42 days: feed intake (FI), weight gain (WG), average final weight (AFW), feed conversion (FC), and carcass yield. Significant differences occurred for AFW, WG and FC in the pre-starter phase. In the second experiment, 112 Cobb 500® chicks aged 25 days were distributed into seven treatments in a CRD with four replicates and four birds/replicate. Treatments were the same as in the first experiment. Nutrient digestibility was evaluated in an experimental period of seven days. Differences were found in the metabolism coefficient of ether extract (MCEE). Dietary inclusion of enzyme complexes improves the AFW and WG of chickens from 1 to 7 days of age and MCEE in the grower phase.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Use of different combinations of enzyme complexes in broiler diets

Neto

Martins

Carvalho

et al. 2021

Semina: Ciênc. Agrár.

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“…Thus, the variation in chemical composition of feeds combined with an enzyme and/or enzyme complex not specific for that chemical combination may not be able to improve the degradation, digestion, and absorption of the nutrients. Moura et al (2019), provides recommendations based on the enzyme nutritional matrix of corn and soybean meal feeds. For precise results, it is essential to adjust the enzyme recommendations for the ingredients in the diet.…”

Section: Discussionmentioning

confidence: 99%

Effects of a monocomponent protease from Bacillus licheniformis on broiler performance, digestibility, and carcass yield

Carneiro

Café

Carvalho

et al. 2022

Acta Sci. Anim. Sci.

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Two experiments were carried out to evaluate the effects of protease addition to the diet of broilers at a higher level (1× or 2×) than the nutritional value proposed for the enzyme. The first experiment, 1280 day-old chicks (Cobb500®) were randomly allocated (randomized block design, 2×2+1 factorial arrangement), five treatments, eight replicates containing 32 birds/replicate. Treatments consisted: control diet without protease (CD); CD + 1× nutritional value of the enzyme (CDM1); CD + 2× nutritional value of the enzyme (CDM2); CDM1 + protease; and CDM2 + protease. The experimental period was 42 days. The mean weight (AFW), feed intake (FI), weight gain (WG), feed conversion, and carcass yield were evaluated. Significant differences were observed for AFW, WG, FI, abdominal fat yield, and feet percentage in the carcass. In the second experiment, 120 Cobb500® chicks at 14 days of age were allotted in a completely randomized design, 2×2+1 factorial arrangement, five treatments, six replicates with four birds/replicate. The treatments were consistent with the first experiment. Significant improvements in the nitrogen balance were observed for the broilers that received protease. The use of the enzyme tested is recommended with the recommended nutritional matrix, improving the zootechnical indices of broilers.

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“…Furthermore, according to these authors, diets with reduced amino acids can lead to improved use of energy for tissue deposition. Moura et al (2019) examined the effect of enzyme complexes on the metabolizable energy and digestibility coefficient of nutrients from millet for broilers from 11 to 21 days of age and observed a reduction in the AME and AMEn values of diets containing enzyme complex (protease, cellulase and amylase enzymes). The same authors also found a reduction in AME and AMEn in diets with the addition of enzyme complexes (phytase, protease, xylanase, β-glucanase, cellulase, amylase and pectinase enzymes) for broilers aged 31 to 40 days.…”

Section: Tablementioning

confidence: 99%

Xylanase and β-glucanase in maize- and soybean meal-based diets for broilers

Diana

Albino

Rostagno

et al. 2020

Semina: Ciênc. Agrár.

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The objective of this study was to evaluate the effect of adding different xylanase and ?-glucanase enzyme blends to maize- and soybean meal-based diets on performance and energy metabolizability in broilers. Two experiments were carried out with broilers of the COBB 500 strain. In the first experiment, 1960 chicks were assigned to a completely randomized design with a 2 × 3 + 1 factorial arrangement, totaling seven treatments, namely, T1- Positive control (PC); T2 - Negative control 1 (NC1; PC minus 200 kcal kg-1 ME); T3 - NC1 + Blend A; T4 - NC1 + Blend B; T5 - Negative control 2 (NC2; PC minus 167 kcal kg-1 ME and 5% amino acids); T6 - NC2 + Blend A; and T7 - NC2 + Blend B. Fourteen replicates were used per treatment and 20 birds per experimental unit. The parameters evaluated at 21 and 42 days of age were weight gain (WG), feed intake (FI) and feed conversion (FC). At 42 days, production efficiency index (PEI), viability and the yields of cuts were also calculated. Birds that received diets with a reduced nutritional value showed a reduction in WG and PEI and worsened FC as compared those of PC treatment (p < 0.05). However, the birds that consumed the NC2 diet with Blend B exhibited a similar WG to those in PC group (p > 0.05) from 1 to 21 days of life. For the yield of thigh + drumstick, the factors were statistically similar (p > 0.05) to those observed in the PC birds. In the second experiment, 432 fourteen-day-old chicks were distributed in a completely randomized design with seven treatments, with eight replicates per treatment and six birds per experimental unit. The apparent metabolizable energy (AME) and nitrogen-corrected AME (AMEn) values were determined. Overall, the NC2 diet with Blend B provided the highest AME and AMEn values; however, NC1 with the same enzyme blend was the treatment which provided the lowest values. The addition of xylanase and ?-glucanase enzyme blends to maize- and soybean meal-based diets improves WG at 21 days as well as PEI in broilers; however, it does not influence the yield of cuts. Enzymes (Blend B) improve the energy metabolization of broiler diets with reduced energy and amino acid levels.

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Complexos enzimáticos sobre a energia metabolizável e digestibilidade dos nutrientes do milheto para frangos de corte

Cited by 4 publications

References 15 publications

Use of different combinations of enzyme complexes in broiler diets

Use of different combinations of enzyme complexes in broiler diets

Effects of a monocomponent protease from Bacillus licheniformis on broiler performance, digestibility, and carcass yield

Xylanase and β-glucanase in maize- and soybean meal-based diets for broilers

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