Enzimas fúngicas em dietas com alimentos alternativos para frangos de crescimento lento

Alves-Campos, Carla Fonseca; Rodrigues, Kênia Ferreira; Vaz, Roberta Gomes Marçal Vieira; Giannesi, Giovana Cristina; Silva, Gerson Fausto da; Parente, Iberê Pereira; Amorim, Aline Ferreira; Barbosa, Aleane Francisca Cordeiro; Silva, Mônica Calixto da; Fonseca, Flávia Luzia Rodrigues; Araújo, Caroliny Costa; Silva, Valquíria Sousa; Silva, Jefferson Rodrigues da; Silva, Ecione Martins; Campos, Márcio; Machado, Shayanne Batista

doi:10.20873/uft.2359-3652.2017v4n2p35

Cited by 4 publications

(2 citation statements)

References 17 publications

(21 reference statements)

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“…Fungal phytases, mainly of the Aspergillus genus, are widely used in the industrial production of phytase (Alves-Campos et al, 2017), however the use of bacterial phytases (Escherichia coli) in animal feed is increasing (Mapa, 2018). According to Adeola & Cowieson (2011), the new generation of bacterial phytase has high resistance to proteolytic degradation when compared to fungal phytases, which partially explains the high efficiency of its use reported in several studies.…”

Section: Discussionmentioning

confidence: 99%

Superdosing Phytases in the Diets of Light Laying Hens: Productive Performance and Bone Quality

Farias

Leite

Silva

et al. 2021

Braz. J. Poult. Sci.

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Two experiments were carried out with the objective of evaluating the effect of superdosing of two phytases on performance, egg quality, digestive organ biometry and bone quality of light hens in the first (58 weeks) and second (87 weeks) productive cycle. In the first cycle, 270 light hens were used, in which a completely randomized design was adopted in a 2 x 2 + 1 factorial scheme (bacterial phytase or fungal phytase x 450 FTUs or 900 FTUs + control diet). In the second cycle, 270 hens were used, following the same design as the previous experiment. The performance and quality of the eggs were evaluated in both cycles, and the biometry of the digestive organs and bone characteristics were also evaluated in the first experiment. There was no effect in the comparison between the means for the performance and egg quality (in both experiments), or for the biometric variables and bone characteristics (first experiment). There was no significant interaction between the factors for any of the variables in the two experiments. In the first experiment, egg production was higher with bacterial phytase and egg weight with fungal phytase. The mineral matter showed greater value with 450 FTUs. It is recommended to use bacterial phytase produced from Escherichia coli as it improves the performance of light laying hens. The dosage of 450 FTUs improves the mineral content of light laying hens and the use of phytase in the laying hen diet implies a lower feed cost.

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Section: Discussionmentioning

confidence: 99%

Superdosing Phytases in the Diets of Light Laying Hens: Productive Performance and Bone Quality

Farias

Leite

Silva

et al. 2021

Braz. J. Poult. Sci.

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“…Corn and soybean are the most widely used vegetable ingredients in poultry feed, especially for their nutritional values (ALVES-CAMPOS et al, 2017). These products, however, are becoming increasingly expensive and scarce, especially in the Northeastern semi-arid region.…”

Section: Introductionmentioning

confidence: 99%

Licuri Bagasse (Syagrus Coronata) in Rations for Broilers

Melo¹,

Neto²,

Mendes³

et al. 2021

RCR

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The evaluation of the use of licuri bran for broilers in the initial (1-21 days), growth (22-35 days) and finishing (36-42 days) phases. Three hundred birds with a day age were submitted to four treatments with diets based on corn and soybean containing levels of inclusion of the licuri bagasse (4, 8, 12 and 16%) and a reference diet without the inclusion of the bagasse. Daily weight gain (DWG), total weight gain (TWG), daily feed intake (DFI) and feed conversion (FC) were evaluated. A completely randomized design was used. Five treatments and six replicates, with a density of 10 birds / m2 per experimental unit. Regression analysis was performed. The inclusion of increasing licuri bagasse levels interfered positively in the of birds’ performance, providing better rates for the levels with 8; 12 and 16% inclusion of the bran, within the studied variables.

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Does dietary supplementation with phytases affect the thermoregulatory and behavioral responses of pullets in a tropical environment?

Sena

Bastos-Leite

Vasconcelos

et al. 2020

Journal of Thermal Biology

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Enzimas fúngicas em dietas com alimentos alternativos para frangos de crescimento lento

Cited by 4 publications

References 17 publications

Superdosing Phytases in the Diets of Light Laying Hens: Productive Performance and Bone Quality

Superdosing Phytases in the Diets of Light Laying Hens: Productive Performance and Bone Quality

Licuri Bagasse (Syagrus Coronata) in Rations for Broilers

Does dietary supplementation with phytases affect the thermoregulatory and behavioral responses of pullets in a tropical environment?

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