Características produtivas e qualitativas de frangos de corte alimentados com diferentes complexos enzimáticos

Filho, João Antonio Barbosa; Oliveira, Juliana Paula Felipe de; Boas, A. D. C. V.; Almeida, Maurício de; Dornellas, T.; Hoffmann, Alvair; Silva, C. A.; Oba, Alexandre

doi:10.17523/bia.2018.v75.e1427

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…Carcass yield results were similar to those published by Barbosa et al (2018), who did not observe an effect of adding enzyme complexes similar to those used in this study in the diet of chickens on the yields of the carcass and or respective major cuts. Fernandes et al (2015) also did not notice an effect of complexes composed of carbohydrases and protease on chicken diets regarding the yields of carcass, breast, wings and abdominal fat.…”

Section: Resultssupporting

confidence: 91%

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: Resultssupporting

confidence: 91%

Use of different combinations of enzyme complexes in broiler diets

Neto

Martins

Carvalho

et al. 2021

Semina: Ciênc. Agrár.

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Complexo enzimático em dietas para frangos de corte na fase de crescimento

Fernandes

Marques

Bastos

et al. 2020

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The objective of the study was to evaluate the effect of inclusion of enzyme complex in diets of corn and soybean meal upon the metabolizable energy, heat production, zootechnical performance, intestinal morphometry, carcass yield and commercial cuts of broilers, in the period of 21 to 42 days. Metabolism and performance test were performed in a completely randomized design with 4 treatments (Positive Control (CP) and Negative Control (CN), with enzyme complex and without enzyme complex, respectively), 8 repetitions of 4 birds (metabolism) and 15 birds (performance)). Metabolizable energy, heat production, intestinal histomorphometry, zootechnical performance, carcass yield and economic evaluation were analyzed. No effects were observed for metabolizable energy and heat production when enzymes to the diets were added. There was no effect of the treatments upon the performance and the carcass yield. The enzymes caused an increase in the width of the crypt in the duodenum. The others variables (villus height and width, crypt height, wall thickness) of the duodenum, jejunum and ileum were not influenced. Enzymes in diets without energy reduction are not economically viable in the period of 21 to 42 days of age.

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Características produtivas e qualitativas de frangos de corte alimentados com diferentes complexos enzimáticos

Cited by 2 publications

References 15 publications

Use of different combinations of enzyme complexes in broiler diets

Use of different combinations of enzyme complexes in broiler diets

Complexo enzimático em dietas para frangos de corte na fase de crescimento

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