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Effects Of Storing Three Phytase Sources Over 90 Days Under High Temperature And Humidity On Phytase Stability, Growth Performance, And Bone Mineralization Of Nursery Pigs, C. M. Vier, M. B. Menegat, K. M. Gourley, S. S. Dritz, M. D. Tokach, J. R. Bergstrom, R. D. Goodband, J. M. Derouchey, J. C. Woodworth
Effects Of Storing Three Phytase Sources Over 90 Days Under High Temperature And Humidity On Phytase Stability, Growth Performance, And Bone Mineralization Of Nursery Pigs, C. M. Vier, M. B. Menegat, K. M. Gourley, S. S. Dritz, M. D. Tokach, J. R. Bergstrom, R. D. Goodband, J. M. Derouchey, J. C. Woodworth
Kansas Agricultural Experiment Station Research Reports
A study was performed to evaluate the effects of storing three commercially available phytase products for 90 d, simulating summer conditions on phytase stability, growth performance, and bone mineralization of nursery pigs. The phytase products [HiPhos GT (20,000 FYT/g, DSM Nutritional Products, Parsippany, NJ); Axtra Phy TPT (20,000 FTU/g, Dupont, Wilmington, DE); and Quantum Blue G (40,000 FTU/g, AB Vista, Plantation, FL)] were left as pure forms or blended in a vitamin and trace mineral (VTM) premix for a 90 d period in an environmentally controlled chamber set at 85°F and 75% humidity. Sampling occurred on d 0, 30, 60, …
Standardized Total Tract Digestible Phosphorus Requirement Of 25- To 50-Lb Pigs Fed Diets Containing Phytase, C. M. Vier, S. S. Dritz, M. D. Tokach, J. C. Woodworth, R. D. Goodband, J. M. Derouchey
Standardized Total Tract Digestible Phosphorus Requirement Of 25- To 50-Lb Pigs Fed Diets Containing Phytase, C. M. Vier, S. S. Dritz, M. D. Tokach, J. C. Woodworth, R. D. Goodband, J. M. Derouchey
Kansas Agricultural Experiment Station Research Reports
A total of 2,140 barrows and gilts (PIC 337 × Camborough) with an initial pen average body weight (BW) of 24.5 ± 0.53 lb were used in a 21 d growth trial to determine the standardized total tract digestible phosphorus (STTD P) requirement of nursery pigs from 25 to 50 lb fed diets containing 1,000 phytase units (FYT). Pigs were weaned at approximately 19 d of age and allotted to pens according to gender and sow farm of origin. There were 12 replicate pens per treatment and 24 to 27 pigs per pen. Pens of pigs were randomly allotted to …
Standardized Total Tract Digestible Phosphorus Requirement Of 13- To 28-Lb Pigs Fed Diets With Or Without Phytase, F. Wu, J. C. Woodworth, M. D. Tokach, J. M. Derouchey, S. S. Dritz, R. D. Goodband
Standardized Total Tract Digestible Phosphorus Requirement Of 13- To 28-Lb Pigs Fed Diets With Or Without Phytase, F. Wu, J. C. Woodworth, M. D. Tokach, J. M. Derouchey, S. S. Dritz, R. D. Goodband
Kansas Agricultural Experiment Station Research Reports
A total of 1,080 nursery pigs (PIC 280 ×1050, initially 13.0 ± 2.38 lb BW) were housed in 3 commercial research rooms and used in a 46-d study to determine the effects of increasing standardized total tract digestible (STTD) phosphorus (P) concentrations in diets with and without phytase on growth performance and percentage bone ash. Pens of pigs (10 pigs per pen, 9 pens per treatment) were balanced for equal pen weights and allotted randomly to 1 of 12 treatments. Dietary treatments were arranged in 2 sets of dose titration with 6 levels of STTD P with and without 2,000 …