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dc.contributor.authorTsai, Tsung-Cheng
dc.description.abstractFor this study, two experiments were conducted. Experiment 1 examined the extended benefit at market weight if pigs were supplemented with high level phytase from early nursery. Experiment 2 aimed to clarify varied levels of phytase in P balance in nursery pigs. Exp. 1 showed that pigs fed 12500 U/kg phytase in a deficient P diet (0.13% aP) during both the nursery (Trt. 4) and nursery-growing (Trt. 5) phases had full recovery on overall gain weight from adequate P (0.35% aP), and also can reduced P excretion by 70.79% and 64.60% in the nursery phase when compared to positive controlled (P<0.0001). An LP diet with 250, 500, 2500, and 12500 U/kg phytase reduced fecal P (%) by 21.76%, 16.67%, 39.81%, and 49.54% (P<0.0001) when compared to HP without phytase supplementation. The results indicated that a high level E. Coli. phytase has a sustained benefit on growth performance, and bone strength in growth-finishing pigs and that 2500 and 12500 U/kg phytase could reduce P and Ca excretion efficiently in nursery pigs.
dc.subjectP Digestibility
dc.subjectBone Strength
dc.titleThe effect of E. Coli phytase on a sustained benefit in swine growth performance, bone strength, and nutrient digestibility, and phosphorus balance in nursery pigs
dc.description.departmentAnimal and Dairy Science
dc.description.majorAnimal and Dairy Science
dc.description.advisorMichael J. Azain
dc.description.committeeMichael J. Azain
dc.description.committeeMark Froetschel
dc.description.committeeRobert C. Dove

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