Dose response of a new phytase on dry matter, calcium, and phosphorus digestibility in weaned piglets

M. H.L. Bento, C. Pedersen, P. W. Plumstead, L. Salmon, C. M. Nyachoti, P. Bikker

Research output: Contribution to journalArticle (Academic Journal)peer-review

7 Citations (Scopus)

Abstract

The present study evaluated the dose response of Buttiauxella phytase on apparent total tract digestibility (ATTD) of DM, Ca, and P in weaned pigs at 2 locations. Experimental diets fed to weaned pigs were a positive control (PC), a negative control (NC), and NC supplemented with increasing levels of Buttiauxella phytase. In Trial A, ATTD of P was 57.2% for PC, 32.5% for NC, and 59.4, 62.0, 63.8, 66.0, and 67.3% for 250, 500, 750, 1000, and 2000 phytase units (FTU) added to NC, respectively. In Trial B, ATTD of P was 45.2% for PC, 28.4% for NC, and 58.7, 64.1, 67.9, and 70.9% for 250, 500, 1000, and 2000 FTU added to NC, respectively. In both studies, the reduction in P in the NC diets reduced (P < 0.01) ATTD of P when compared with the PC diets. Phytase supplementation linearly and quadratically increased (P < 0.01) ATTD of P at all inclusion levels to the NC diet. In conclusion, the average digestible P increase from Buttiauxella phytase (vs. the NC diet) was 1.3, 1.5, 1.6, and 1.7 g digestible P/kg feed for 250, 500, 1000, and 2000 FTU/kg, respectively.

Original languageEnglish
Pages (from-to)245-247
Number of pages3
JournalJournal of Animal Science
Volume90
Issue numberSUPPL4
DOIs
Publication statusPublished - Dec 2012

Keywords

  • Buttiauxella phytase
  • Phosphorus digestibility
  • Weaned pigs

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