Complexo multienzimático na dieta das galinhas poedeiras

Vargas, Ricardo Cruz; Geraldo, Adriano; Rocha, Tatiana Cristina da; Silva, Israel Marques; Teles, Samuel Piassi; Nogueira, Filipe Soares; Carvalho, Carlos Alberto de; Gonçalves, Rogério Amaro

doi:10.5965/223811711612017061

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…The expansion of poultry farming in the last decades has driven the search for excellence in this sector. According to Vargas et al (2017), the nutrition area has stood out for discovering numerous alternatives to increase production based on the optimization of the use of dietary nutrients and reduction of feed costs. These functions are commonly attributed to exogenous enzymes, which play an even more important role in alternative broiler production systems such as the antibiotic-free system.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the “Enzymmix F” Product as an Additive for Broilers Reared in an Antibiotic-Free System

Pereira¹,

Pereira²,

Filho³

et al. 2018

RBAS

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This experiment was undertaken to compare the effects of using the Enzymmix F product with a Brazilian enzyme blend in diets with different nutritional levels. A total of 1,080 male broiler chicks were distributed into a randomized-block design with a 3 × 2 factorial arrangement consisting of three enzyme complexes (Enzyme Blend, Enzymmix F, and the combination of both) and two nutritional levels (regular and reduced). We evaluated the birds' performance in the periods of 1 to 21 and 1 to 42 days of age. The yields of carcass and cuts and intestinal integrity were evaluated at 45 days of age. During the analyzed periods, no significant difference was observed for the performance parameters considering the "enzyme" factor. However, the reduction in the nutritional level of the diet resulted in inferior performance in both periods. There was no statistical difference for the yields (%) of carcass and cuts. Enzymmix F provided the greatest villus height in the jejunum segment. The use of the Enzyme Blend in the nutritionally reduced diet led to a lower crypt depth. In conclusion, Enzymmix F increased the weight of wings (g) and the villus height in the jejunum.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the “Enzymmix F” Product as an Additive for Broilers Reared in an Antibiotic-Free System

Pereira¹,

Pereira²,

Filho³

et al. 2018

RBAS

View full text Add to dashboard Cite

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Xylanase and phytase supplementation of Moringa oleifera diets: effects on the performance, egg quality and blood profile of laying hens

Macambira,

Rabello,

Oliveira

et al. 2024

Anim. Prod. Sci.

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Context Moringa oleifera leaves present enormous potential as an alternative feedstuff for laying hens. The utilisation of the leaves can be improved by exogenous enzymes owing to the presence of non-starch polysaccharides and phytate. Aims This study evaluated the influence of Moringa oleifera leaf meal (MOL) in diets supplemented with xylanase and phytase on laying hen performance and egg quality at peak production. Methods In total, 288 Dekalb White laying hens (32 weeks old) were distributed in a completely randomised design, following a 2 × 4 factorial arrangement (with or without MOL × 4 enzyme supplementations). Each treatment comprised six repetitions, each containing six hens. The control diet was based on ground corn and soybean meal, and the treatment diets were supplemented with 5% MOL, followed by three enzyme additives (xylanase, phytase and a xylanase + phytase blend). Key results The enzyme supplementation in MOL diets positively influenced egg production (P = 0.012), egg weight (P = 0.021) and egg mass (P = 0.009). The birds offered xylanase-supplemented diets had higher feed intakes (P = 0.015) than did those fed other diets. Moringa oleifera increased the albumen height (P < 0.001) and Haugh unit (P < 0.001), whereas MOL and phytase improved eggshell thickness (P < 0.001) and the candling score (P = 0.049), compared with treatments without phytase supplementation. MOL and enzyme supplementation improved yolk colour intensity (L, A and R parameters) and decreased plasma total cholesterol and LDL cholesterol concentrations. The inclusion of 5% MOL in diets did not impair laying performance. However, when MOL diets were supplemented with exogenous enzymes, there was an increase in egg weight. Conclusions MOL can be included at 5% in layer diets without affecting performance. When used in combination with xylanase and phytase, they improve performance, intensify yolk colour, and improve shell thickness, candling score, as well as serum biochemical profile. Implications These findings suggest that the combination of dietary MOL + xylanase + phytase can improve performance and egg quality in laying hens at peak production.

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Complexo multienzimático na dieta das galinhas poedeiras

Cited by 2 publications

References 5 publications

Evaluation of the “Enzymmix F” Product as an Additive for Broilers Reared in an Antibiotic-Free System

Evaluation of the “Enzymmix F” Product as an Additive for Broilers Reared in an Antibiotic-Free System

Xylanase and phytase supplementation of Moringa oleifera diets: effects on the performance, egg quality and blood profile of laying hens

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