Effect 
 of Microbial Phytase on Growth Performance and Nutrients Digestibility 
 in Broilers

Akyürek, Hasan; Senkoylu, Nizamettin; Özdüven, Mehmet Levent

doi:10.3923/pjn.2005.22.26

Cited by 11 publications

(3 citation statements)

References 17 publications

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“…In current study, the observed improvement in WG and FCR in phytase treatments at whole rearing period confirmed the expected effects of different phytase levels. These results are in contrast to the report of Akyurek et al (2005).…”

Section: Discussioncontrasting

confidence: 99%

“…(2013) and are in contrast to obtained results by Akyurek et al. (2005). Based on the present results, it was concluded that phytase and xylanase enzymes had significant effect on immune response in broilers.…”

Section: Discussioncontrasting

confidence: 95%

“…These results are in agreement with the report of Nelson et al (1968) and are in contrast to results of some researchers (Augspurger & Baker, 2004;Dilger et al, 2004;Santos et al, 2008). Relative weight of liver was affected by enzymes, and there was no significant difference between phytase and xylanase treatments (p > 0.05), which is in agreement with the results of Wang et al (2013) and are in contrast to results by Akyurek et al (2005). Based on the present results, it was concluded that phytase and xylanase enzymes had significant effect on immune response in broilers.…”

Section: Discussionsupporting

confidence: 90%

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Effect of phytase and xylanase enzymes on growth performance and Mucin2 gene expression in broiler chickens

Noormohammadi

Varkoohi

Seyedabadi

2023

Veterinary Medicine & Sci

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Background: Development of exogenous enzymes is one of the most important discoveries in animal nutrition. The supplementation of exogenous enzymes in broiler diets allows for supplying nutrient deficiencies and to decrease endogenous losses. Objectives:The effects of phytase (Hostazym and Phyzyme) and xylanase (Ronozyme) enzymes were investigated on growth performance and Mucin2 gene expression in broilers.Methods: A completely randomized design was applied, including 7 treatments, 4 replicates and 25 birds per replicates. A total of 700 male Ross (308) broiler chickens were fed with similar diets supplemented by Hostazym and Phyzyme (500 and 1000 FTU/kg) and Ronozyme (100 and 200 EXU/kg). Weight gain (WG), feed intake (FI) and feed conversion ratio (FCR) were determined for three phases and entire rearing period. On 42 days of age, four birds per replicate were slaughtered. Total RNA was extracted from jejunum samples, and Mucin2 gene expression was measured by real-time PCR.Results: Phytase and xylanase enzymes had a significant effect (p < 0.05) on traits (WG and FCR) in grower and finisher phases and whole rearing period, but FI was not affected by enzymes (p > 0.05). Carcass (74.13 g) and breast (27.76 g) weights by Hostazym (1000 FTU/kg) were higher than other treatments (p < 0.05). Weight of liver, bursa and spleen were significantly influenced by enzymes (p < 0.05). Likewise, bursa and spleen weights in Hostazym (1000 FTU/kg feed) and Ronozyme (200 EXU/kg feed) were significantly higher than other treatments (p < 0.05). Mucin2 gene expression was affected by enzymes in whole treatments. The lowest amount of Mucin2 gene expression belonged to Ronozyme (200 and 100 EXU/kg), and the highest was belonging to Hostazym (1000 FTU/kg). Conclusions: Phytase enzymes have higher effect on broiler performance and Mucin2gene expression compared to xylanase. High doses of Hostazym (1000 FTU/kg feed) could be supplemented in broiler chicken diets to improve optimum growth and feed efficiency.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussioncontrasting

confidence: 95%

Section: Discussionsupporting

confidence: 90%

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Effect of phytase and xylanase enzymes on growth performance and Mucin2 gene expression in broiler chickens

Noormohammadi

Varkoohi

Seyedabadi

2023

Veterinary Medicine & Sci

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Significance of phytic acid and supplemental phytase in chicken nutrition: a review

Singh¹

2008

World's Poultry Science Journal

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Phytic acid is an anti-nutritional constituent of plant derived feeds. As a reactive anion, it forms a wide variety of insoluble salts with minerals including phosphorus, calcium, zinc, magnesium and copper. Phytic acid is also known to form complexes with protein and proteolytic enzymes (pepsin and trypsin). Because of the lack of endogenous phytase enzymes that hydrolyze phytic acid; phosphorus, calcium, protein and other phytic acid bound nutrients are less available to poultry. Commercially-available microbial phytase has great nutritional significance and ecological importance. Poultry diets supplemented with microbial phytase result in improved growth performance and increased digestibility and availability of phytate bound phosphorous, calcium, zinc and copper. Microbial phytase supplementation has also been shown to increase ileal digestibility of crude protein and amino acids. The efficacy of supplemental microbial phytase depends on its rate of inclusion, dietary calcium and phosphorus ratio, vitamin D 3 , nature of diet, age and genotype of birds. Thus, microbial phytase can be used to exploit the inherent nutritional potential of feedstuffs for more economic and environmentallyfriendly poultry production.

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The effect of feeding with feedstuff containing microbial and plant phytase additive on performance of young slaughter turkeys

Brodacki

Batkowska

Makarski

2009

Acta Agriculturae Scandinavica, Section A - Animal Science

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Effect of Microbial Phytase on Growth Performance and Nutrients Digestibility in Broilers

Cited by 11 publications

References 17 publications

Effect of phytase and xylanase enzymes on growth performance and Mucin2 gene expression in broiler chickens

Effect of phytase and xylanase enzymes on growth performance and Mucin2 gene expression in broiler chickens

Significance of phytic acid and supplemental phytase in chicken nutrition: a review

The effect of feeding with feedstuff containing microbial and plant phytase additive on performance of young slaughter turkeys

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