Feed Efficiency Analysis - Adisseo PDF

 Goal : Satisfy the nutrient requirement at the least possible cost ✓ ✓ ✓ ✓ ✓ 14 Phytate level varies in feedstuffs and thus in feeds Table values are not representative of practical situations Phytase value and optimal...

 Goal : Satisfy the nutrient requirement at the least possible cost ✓ ✓ ✓ ✓ ✓ 14 Phytate level varies in feedstuffs and thus in feeds Table values are not representative of practical situations Phytase value and optimal usage depends on the phytic P level and nutritional interactions  PHILSAN Brazilian Tables Book value Take average value of corn CVB INRA Tables NRC Equation Based on proximate composition AMEn WPSA = 36.21 x CP + 85.44 x Fat + 37.26 x NFE In vitro Measure digestibility, DM, protein In vivo Actual test of AME Near Infrared Reflectance Spectroscopy (NIRS) Source = Absorption of part of Detection of the light Polychromatic light the light (molecular reflected or transmitted Spectrum interaction) Equations ✓ ✓ Analysis ✓ result ✓ ✓ ✓ ✓ ✓  Experimental diets Excreta collection Analysis specificity Broilers 20d / Caecectomized cockerels Prox AA tot. AA dig. Wet chemistry P tot. AME Repeat the process to create a robust calibration curve P phy. AMEn … Data Data Spectra Reference Lab In Vivo Lab Analysis  PNE prediction saves cost! Opportunity to save feed cost SBM AMEn: calculated vs in vivo evaluation Opportunity to improve farm profitability!  AMEn Calculated using WPSA vs. AMEn In vivo 4000 3900 3800 3700 AMEn, kcal/kg DM 3600 AMEn WPSA AMEn In-vivo p-value 3500 AMEn (kcal/kg DM) 3750b 3759a