The effects of phytase supplementation and dietary phosphorus level on performance and on tibia ash and phosphorus contents in broilers fed maize-soya-based diets

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Ceylan N., Cangiri S., Corduk M., Grigorov A., Adabi S. H. G.

Journal of Animal and Feed Sciences, vol.21, no.4, pp.696-704, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 4
  • Publication Date: 2012
  • Doi Number: 10.22358/jafs/66142/2012
  • Journal Name: Journal of Animal and Feed Sciences
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.696-704
  • Keywords: broiler, phytase, growth performance, tibia ash, phosphorus, ESCHERICHIA-COLI PHYTASE, GROWTH-PERFORMANCE, MICROBIAL PHYTASE, SOYBEAN-MEAL, QUANTUM PHYTASE, CORN, EFFICACY, AVAILABILITY, COMBINATION, CHICKENS
  • Ankara University Affiliated: Yes

Abstract

To test phytase efficiency, 4 dietary treatments including a positive control (T1), negative control (T2, containing 0.10% less total phosphorus than T1 ), negative control plus 500 FTU phytase (T3), and low-negative control plus 500 FTU phytase (T4, containing 0.13% less total phosphorus than T1) were used. Reducing the available phosphorus level of the broiler diet from 0.47% to 0.37% during the starter, and from 0.37% to 0.26% during the grower-finisher period significantly (P<0.01 ) depressed growth performance as compared with T1. Phytase supplementation significantly (P<0.01) improved the growth performance of the birds for both starter and grower periods. Tibia ash and phosphorus content in both the T3 and T4 groups were similar to Tl and higher (P<0.01) than in T2. Phytase supplementation of both negative control diets significantly (P<0.01) reduced the phosphorus level in excreta. It can be concluded that with phytase supplementation, the total phosphorus level in broiler diets can be decreased by 0.13%.