Effect of xylanase and β-glucanase on growth performance, activity of digestive enzymes, digestibility, and microbiome diversity of juvenile Nile tilapia fed soybean meal and/or sorghum distillers dried grains with solubles-based diets

Macêdo, Élison Silva de; Urbich, Allan Vinnícius; Nakamura, Jessica Sayuri Ticse; Cruz, Thaís Pereira da; Panaczevicz, Paola Aparecida Paulovski; Wernick, Bruno; Furuya, Valéria Rossetto Barriviera; Pezzato, Luiz Edivado; Gatlin, Delbert M.; Furuya, Wilson Massamitu

doi:10.1016/j.aquaculture.2022.739134

Cited by 8 publications

(7 citation statements)

References 69 publications

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“…As reported in other research, digestibility of carbohydrates and digestible energy of DDGS-based feeds is improved with xylanase or phytase treatment (Maas et al 2018;de Macêdo et al 2023). Dry matter digestibility was over 80% for all diets but was significantly lower for the DDGS diet compared with the Ref diets.…”

Section: Dietsupporting

confidence: 75%

“…2018; de Macêdo et al. 2023). Dry matter digestibility was over 80% for all diets but was significantly lower for the DDGS diet compared with the Ref diets.…”

Section: Resultsmentioning

confidence: 99%

“…This can cause undesirable consequences of nutrient enrichment and algal blooms in culture ponds and receiving waters. Treatment of feeds with exogenous phytase has shown increased phosphorus utilization and growth by tilapia and other fish species where digestible phosphorus is limited in diet (de Macêdo et al 2023).…”

Section: Introductionmentioning

confidence: 99%

“…Treatment of feeds with exogenous phytase has shown increased phosphorus utilization and growth by tilapia and other fish species where digestible phosphorus is limited in diet (de Macêdo et al. 2023).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, implementation of fiber reduction methods is key to increasing utilization of corn DDGS as partial or full replacement of costlier protein sources. Chemical treatment by top-spraying with exogenous enzymes (xylanase, glucanase, and amylase) has proven effective in fiber reduction and improved digestibility of tilapia feeds (Maas et al 2018;de Macêdo et al 2023).…”

Section: Introductionmentioning

confidence: 99%

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Digestibility of corn distiller's dried grains with solubles (DDGS) in practical feeds with phytase and xylanase treatment fed to Nile Tilapia

Welker,

Sealey,

Tan

2024

N American J Aquac

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Distiller's dried grains with solubles (DDGS), a byproduct of ethanol production from cereal grains, has seen limited use by fish feed manufacturers as an alternative protein source. Over the past 20 years, advances and greater uniformity in processing methods have improved the quality of DDGS, and likely, its digestibility by fish. Our objective was to reevaluate the digestibility of corn DDGS by Nile tilapia using a present‐day commercial product. Apparent digestibility coefficients (ADC) for the major proximate nutrients (dry matter, crude protein, crude fat, ash, digestible energy, and phosphorus) were determined using a practical, commercial‐type feed that was formulated and processed with DDGS supplied at 30% as w:w substitution (DDGS diet) of the reference diet (Ref). After drying, Ref and DDGS diets were top‐coated with phytase (3310 FTU/kg) + xylanase (7665 BXU/kg) enzymes (Ref+ and DDGS+) and compared to their untreated dietary counterparts. Digestibility of crude protein was similar among diets and unaffected by enzyme treatment. For dry matter and digestible energy, ADC values were significantly lower for the DDGS diet, but enzyme addition improved digestibility to that of the Ref diets. Apparent digestibility for crude fat and ash was significantly better for the DDGS feed with ash digestibility improved after treatment with xylanase + phytase for both Ref+ and DDGS+. For phosphorus, digestibility was similar among the Ref, Ref+, and DDGS diets, but with enzyme treatment, the phosphorus ADC increased significantly in DDGS+. Results of this digestibility trial show that corn DDGS is a highly digestible protein source for use in feeds of Nile tilapia at 30% of diet. Generally, apparent digestibility of proximate nutrients was either better or similar in DDGS when compared to the reference diet and could be further improved with addition of xylanase + phytase.

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Section: Dietsupporting

confidence: 75%

“…2018; de Macêdo et al. 2023). Dry matter digestibility was over 80% for all diets but was significantly lower for the DDGS diet compared with the Ref diets.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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