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Functionality of a next generation biosynthetic bacterial 6-phytase in enhancing phosphorus availability to weaned piglets fed a corn-soybean meal-based diet without added inorganic phosphate

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Animal Nutrition 2020年第1期6卷 24-30页

作者： Yueming Dersjant-Li Boris Villca Vincent Sewalt Arno de Kreij Leon Marchal Deepak E.Velayudhan Robin *** Trine Christensen Rie Mejldal Igor Nikolaev sina pricelius Hye-Sook Kim Svend Haaning Jens F.Sorensen Rosil Lizardo DuPont Nutrition and Biosciences Archimedesweg302333CN Leidenthe Netherlands Institut de Recerca I Tecnologia Agroalimentaries Centre Mas de BoverCtra.Reus-El Morell km.3.8E-43120Constantly Spain DuPont Nutrition&Biosciences 925 Page Mill RoadPalo AltoCA 94304USA DuPont Nutrition&Biosciences 21 Biopolis RoadNucleosSouth Tower138567Singapore DuPont Nutrition and Biosciences Edwin Rahrs Vej 38DK-8220BrabrandDenmark

The utility of a next generation biosynthetic bacterial 6-phytase(PhyG)in restoring bone ash,bone phosphorus(P)content and performance in piglets depleted in P was evaluated.A total of 9 treatments were tested as *** 1,a negative control(NC)diet;treatments 2,3,4,NC supplemented with 250,500 or 1,000 FTU/kg of PhyG;treatments 5,6,NC supplemented with 500 or 1,000 FTU/kg of a commercial Buttiauxella sp phytase(PhyB);treatments 7,8,9,NC supplemented with monocalcium phosphate(MCP)to provide 0.7,1.4 and 1.8 g/kg digestible P,equating to a digestible P content of 1.8,2.5 and 2.9 g/*** latter constituting the positive control(PC)diet with adequate P and calcium(Ca).The NC was formulated without inorganic P(1.1 g digestible P/kg)and reduced in Ca(5.0 g/kg).Additional limestone was added to treatments 7 to 9 to maintain Ca-to-P ratio between 1.2 and 1.3.A total of 162 crossed Pietrain x(Large White×Landrace)21-d-old piglets(50%males and 50%females)were fed adaptation diets until 42 d old and then assigned to pens with 2 pigs/pen and 9 pens/treatment in a completely randomized block *** were fed mash diets based on corn and soybean meal ad libitum for 28 *** the end of the study,one piglet perpen was euthanized and the right feet collected for determination of bone strength,bone ash and mineral *** with the PC,the NC group had reduced average daily gain(ADG)and increased feed conversion ratio(FCR)during all growth phases and overall,and at d 28(70 d old)NC pigs had bones with reduced ash,Ca and P content(P500 FTU/kg,both PhyG and PhyB maintained ADG and FCR equivalent to *** regression analysis was done to compare the measured response parameters to increasing digestible P from *** on this analysis it was shown that PhyG and PhyB at 1,000 FTU/kg could replace 1,83 and 1.66 g/kg dige

关键词： Biosynthetic bacterial 6-phytase Bone ash Efficacy Growth performance Pigs

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Corrigendum to “Functionality of a next generation biosynthetic bacterial 6-phytase in enhancing phosphorus availability to weaned piglets fed a corn-soybean meal-based diet without added inorganic phosphate” [Animal Nutrition 6/1 (2020) 24e30]

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Animal Nutrition 2021年第4期7卷 1388-1388页

作者： Yueming Dersjant-Li Boris Villca Vincent Sewalt Arno de Kreij Leon Marchal Deepak E.Velayudhan Robin *** Trine Christensen Rie Mejldal Igor Nikolaev sina pricelius Hye-Sook Kim Svend Haaning Jens F.Sørensen Rosil Lizardo DuPont Nutrition and Biosciences Archimedesweg302333CN Leidenthe Netherlands Institut de Recerca I Tecnologia Agroaliment_aries Centre Mas de BoverCtra.Reus-El Morell km.3.8E-43120ConstantiSpain DuPont Nutrition&Biosciences 925 Page Mill RoadPalo AltoCA 94304USA DuPont Nutrition&Biosciences 21 Biopolis RoadNucleosSouth Tower138567Singapore DuPont Nutrition and Biosciences Edwin Rahrs Vej 38DK-8220BrabrandDenmark

The authors regret that the following errors are found in the Materials and method under section *** *** following sentence:“Analysis of exogenous phytase activity in feeds was performed according to Engelen et al.(1994)”should instead to be corrected to:“Analysis of exogenous phytase activity in feeds was performed according to a modified version of the 2000.12 AOAC method(Engelen et al.,2001).”

关键词： analysis. soybean inorganic

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