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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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Productive performance of commercial growing and finishing pigs supplemented with a Buttiauxella phytase as a total replacement of inorganic phosphate

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Animal nutrition 2018年第4期4卷 351-357页

作者： Yueming Dersjant-Li Peter Plumstead Ajay Awati Janet Remus Danisco Animal nutrition DuPont Industrial Biosciences Marlborough SN8 1XN United Kingdom Department of Animal and Wildlife Sciences Faculty of Agricultural and Natural Sciences University of Pretoria Hatfield Pretoria 0028 South Africa Danisco Animal nutrition DuPont Industrial Biosciences St. Louis MO 63167 USA

The objective of this study was to test if a novel phytase from Buttiauxella sp. can replace all added inorganic phosphate in a diet with reduced Ca and metabolizable energy(ME) fed to commercial pigs from12 kg body weight(BW) until slaughter, whilst maintaining performance and carcass quality *** dietary treatments were tested in a completely randomized design with 9 replicate pens, each containing 31 mixed sex Newsham Choice pigs. Diets included a positive control(PC) based on corn,soybean meal, wheat middling and bakery meal, meeting all nutrient requirement of pigs; a negative control(NC) excluded inorganic phosphate and with reduced Ca(-0.13%) and ME(-0.15 MJ/kg); and NC supplemented with Buttiauxella phytase at 500 or 1,000 FTU/kg feed. Diets were fed ad libitum in mash form in 5 phases: starter(12 to 25 kg BW), grower 1(25 to 50 kg BW) and 2(50 to 75 kg BW), and finisher1(75 to 100 kg BW) and 2(100 kg BW to slaughter). The NC group showed lower(P < 0.05) average daily feed intake(ADFI) and average daily gain(ADG) in starter and grower phases, lower gain to feed ratio(G:F)in starter and grower 1 compared with PC. Pigs receiving the high dose of phytase of 1,000 FTU/kg had improved performance vs. the 500 FTU/kg phytase treatment in starter and grower 1 phase compared with the PC in grower 1 phase. Increasing phytase dose resulted in a linear increase in ADG(12 to120 kg BW) and G:F(50 to 75 kg BW). A comparison of treatment groups over the full production period from 12 kg BW until slaughter showed that both 500 and 1,000 FTU/kg phytase treatments were able to maintain growth performance and carcass characteristics compared with PC. The application of Buttiauxella phytase could therefore be used as an effective strategy to replace all inorganic phosphate in diets of pigs fed corn, soybean meal, wheat middling and bakery meal based diets from 12 kg BW. An economic analysis showed greater return from both phytase treatments vs. the PC and favored the

关键词： Buttiauxella phytase Carcass Pigs Phosphorus Productive performance

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Correcting for non-compliance when determining colonic transit time with radio-opaque markers

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World Journal of Gastroenterology 2017年第4期23卷 740-742页

作者： Alvin Ibarra Kaisa Olli Arthur C Ouwehand dupont nutrition and Health 02460 KantvikFinland

The use of radio-opaque markers and abdominal X-ray is the standard method for determining colonic transit time(CTT). However, when there are deviations in the intake of these markers by participants in clinical trials it is desirable to improve observations by introducingcorrections, where possible. To date, there is no standard procedure to adjust for such deviations. This report proposes a series of alternatives based on possible scenarios for deviations from the intended intake of radio-opaque markers. The proposed method to correct for missed or delayed consumption of radioopaque markers can help to increase the accuracy of the CTT measurements in clinical trials.

关键词： Colonic transit time Gastroenterology Gut transit time Radio-opaque marker X-ray

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Influence of a probiotic mixture on antibiotic induced microbiota disturbances

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World Journal of Gastroenterology 2014年第33期20卷 11878-11885页

作者： Sofia Forssten Malkanthi Evans Dale Wilson Arthur C Ouwehand Active nutrition DuPont Nutrition & Health 02460 Kantvik Finland KGK Synergize London ONN6A 5R8 Canada

AIM: To study the effect of probiotic consumption on the faecal microbiota during and after antibiotic exposure.

关键词： Probiotic Antibiotic treatment Amoxicillin/ clavulanate Microbiota Beta-lactamases Lactobacillus acidophilus Bifidobacterium lactis

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Contemporary meta-analysis of short-term probiotic consumption on gastrointestinal transit

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World Journal of Gastroenterology 2016年第21期22卷 5122-5131页

作者： Larry E Miller Angela K Zimmermann Arthur C Ouwehand Miller Scientific Consulting Inc. Asheville NC 28803 United States dupont nutrition and Health FIN-02460 Kantvik Finland

AIM: To determine the efficacy of probiotic supplementation on intestinal transit time(ITT) in adults and to identify factors that influence these outcomes. METHODS: We conducted a systematic review of randomized controlled trials of probiotic supplementation that measured ITT in adults. Study quality was assessed using the Jadad scale. A random effects meta-analysis was performed with standardized mean difference(SMD) of ITT between probiotic and control groups as the primary outcome. Meta-regression and subgroup analyses examined the impact of moderator variables on SMD of ***: A total of 15 clinical trials with 17 treatment effects representing 675 subjects were included in this analysis. Probiotic supplementation was moderately efficacious in decreasing ITT compared to control, with an SMD of 0.38(95%CI: 0.23-0.53, P < 0.001). Subgroup analyses demonstrated statistically greater reductions in ITT with probiotics in subjects with vs without constipation(SMD: 0.57 vs 0.22, P < 0.01) and in studies with high vs low study quality(SMD: 0.45 vs 0.00, P = 0.01). Constipation(R^2 = 38%, P < 0.01), higher study quality(R^2 = 31%, P = 0.01), older age(R^2 = 27%, P = 0.02), higher percentage of female subjects(R^2 = 26%, P = 0.02), and fewer probiotic strains(R^2 = 20%, P < 0.05) were predictive of decreased ITT with probiotics in meta-regression. Medium to large treatment effects were identified with B. lactis HN019(SMD: 0.67, P < 0.001) and B. lactis DN-173 010(SMD: 0.54, P < 0.01) while other probiotic strains yielded negligible reductions in ITT relative to ***: Probiotic supplementation is moderately efficacious for reducing ITT in adults. Probiotics were most efficacious in constipated subjects, when evaluated in high-quality studies, and with certain probiotic strains.

关键词： Constipation Gastrointestinal Intestinal transit time Meta-analysis Probiotics

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Probiotic supplementation decreases intestinal transit time: Meta-analysis of randomized controlled trials

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World Journal of Gastroenterology 2013年第29期19卷 4718-4725页

作者： Larry E Miller Arthur C Ouwehand Miller Scientific Consulting Inc. Arden NC 28704 United States dupont nutrition and Health FIN-02460 Kantvik Finland

AIM: To determine the efficacy of probiotic supplementation on intestinal transit time (ITT) and to identify factors that influence these outcomes. METHODS: A systematic review of randomized controlled trials (RCTs) of probiotic supplementation that measured ITT in adults was conducted by searching MEDLINE and EMBASE using relevant combinations. Main search limits included RCTs of probiotic supplementation in healthy or constipated adults that measured ITT. Study quality was assessed using the Jadad scale. A random effects meta-analysis was performed with standardized mean difference (SMD) of ITT between probiotic and control groups as the primary outcome. Meta-regression and subgroup analyses were conducted to examine the impact of moderator variables on ITT SMD. RESULTS: A total of 11 clinical trials with 13 treatment effects representing 464 subjects were included in this analysis. Probiotic supplementation was associated with decreased ITT in relation to controls, with an SMD of 0.40 (95%CI: 0.20-0.59, P < 0.001). Constipation (r 2 = 39%, P = 0.01), higher mean age (r 2 = 27%, P = 0.03), and higher percentage of female subjects (r 2 = 23%, P < 0.05) were predictive of decreased ITT with probiotics in meta-regression. Subgroup analyses demonstrated statistically greater reductions in ITT with probiotics in subjects with vs without constipation and in older vs younger subjects [both SMD: 0.59 (95%CI: 0.39-0.79) vs 0.17 (95%CI: -0.08-0.42), P = 0.01]. Medium to large treatment effects were identified with Bifidobacterium Lactis (B. lactis ) HN019 (SMD: 0.72, 95%CI: 0.27-1.18, P < 0.01) and B. lactis DN-173 010 (SMD: 0.54, 95%CI: 0.15-0.94, P < 0.01) while other single strains and combination products yielded small treatment effects. CONCLUSION: Overall, short-term probiotic supplementation decreases ITT with consistently greater treatment effects identified in constipated or older adults and with certain probiotic strains.

关键词： Constipation Gastrointestinal Intestinal transit time Meta-analysis Probiotics

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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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Comparison of bacterial quantities in left and right colon biopsies and faeces

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World Journal of Gastroenterology 2012年第32期18卷 4404-4411页

作者： Anna Lyra Sofia Forssten Peter Rolny Yvonne Wettergren Sampo J Lahtinen Krista Salli Lennart Cedgrd Elisabeth Odin Bengt Gustavsson Arthur C Ouwehand dupont nutrition and Health KantvikActive Nutrition02460 KantvikFinland Department of Medicine Sahlgrenska AcademyUniversity of GothenburgS-41685 GothenburgSweden Wasa MedicalsAB Probiotic DivisionS-302 91 HalmstadSweden Department of Surgery Sahlgrenska AcademyUniversity of GothenburgS-41685 GothenburgSweden

AIM:To compare quantities of predominant and pathogenic bacteria in mucosal and faecal ***:Twenty patients undergoing diagnostic colonoscopy with endoscopically and histologically normal mucosa were recruited to the study,14 subjects of which also supplied faecal(F) samples between 15 d to 105 d post *** biopsies were taken from each subject from the midportion of the ascending colon(right side samples,RM) and the sigmoid(left side samples,LM).Predominant intestinal and mucosal bacteria including clostridial 16S rRNA gene clusters Ⅳ and ⅩⅣab,Bacteroidetes,Enterobacteriaceae,Bifidobacterium spp.,Akkermansia muciniphila(***),Veillonella spp.,Collinsella spp.,Faecalibacterium prausnitzii(***) and putative pathogens such asEscherichia coli(***),Clostridium difficile(***),Helicobacter pylori(***) and Staphylococcus aureus(***) were analysed by quantitative polymerase chain reaction(qPCR).Host DNA was quantified from the mucosal samples with human glyceraldehyde 3-phosphate dehydrogenase gene targeting *** t tests and the Pearson correlation were applied for statistical ***:The most prominent bacterial groups were clostridial groups Ⅳ and ⅩⅣa+b andBacteroidetes and bacterial species *** in both sample *** and *** were not detected and *** was detected in only one mucosal sample and three faecal *** was detected in less than half of the mucosal samples at both sites,but was present in all faecal *** detected bacteria,except Enterobacteriaceae,were present at higher levels in the faeces than in the mucosa,but the different locations in the colon presented comparable quantities(RM,LM and F followed byP 1 for RMvs F,P 2 for LMvs F andP 3 for RM vs LM:4.17 ± 0.60 log 10 /g,4.16 ± 0.56 log 10 /g,5.88 ± 1.92 log 10 /g,P 1 = 0.011,P 2 = 0.0069,P 3 = 0.9778 ***;6.25 ± 1.3 log 10 /g,6.09 ± 0.81 log 10 /g,8.84 ± 1.38 log 10 /g,P

关键词： Gastrointestinal microbiota Mucosa Faeces Real-time quantitative polymerase chain reaction Sampling

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The influence of phytase, pre-pellet cracked maize and dietary crude protein level on broiler performance via response surface methodology

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Journal of Animal Science and Biotechnology 2020年第1期11卷 169-182页

作者： Amy F.Moss Peter V.Chrystal Yueming Dersjant-Li Peter H.Selle Sonia Yun Liu Poultry Research Foundation within The University of Sydney 425 Werombi RoadCamdenNSW 2570Australia School of Environmental and Rural Science University of New EnglandArmidaleNSW 2351Australia School of Life and Environmental Sciences Faculty of ScienceThe University of SydneySydneyNSW 2006Australia Baiada Poultry Pty Limited Pendle HillNSWAustralia Danisco Animal nutrition DuPont Industrial BiosciencesMarlboroughUK.

Background:The reduction of crude protein levels in diets for broiler chickens may generate economic,environmental and flock welfare and health benefits;however,performance is usually *** grain feeding and phytase may improve the utilization of reduced crude protein ***:The effects of pre-pellet cracked maize(0,15%and 30%)and phytase(0,750 and 1500 FTU/kg)in isoenergetic maize-soy diets with three levels of crude protein(22%,19.5%and 17%)were evaluated via a BoxBehnken response surface *** of 13 dietary treatments were offered to 6 replicate cages(6 birds/cage)of male Ross 308 broiler chicks from 7 to 28 d *** prediction and response surface plots were generated from experimental data via polynomial regression in R and only significant coefficients were included and discussed in the predicted *** gain,feed intake and FCR were all influenced by pre-pellet cracked maize,phytase and crude protein level,where crude protein level had the greatest ***,the reduction from 22%to 17%dietary crude protein in non-supplemented diets reduced weight gain,feed intake,relative gizzard weight,relative gizzard content and relative pancreas weight but improved ***,the inclusion of 30%cracked maize to 17%crude protein diets restored gizzard weight and 1500 FTU phytase inclusion to 17%crude protein diets increased relative gizzard contents and pancreas *** maize and phytase inclusion in tandem to 17%crude protein diets increased weight gain,feed intake and FCR;however,this FCR was still more efficient than broilers offered the non-supplemented 22%crude protein *** offered the prepellet cracked maize and phytase inclusions reduced AME in 22%crude protein diets but improved AME by 2.92 MJ(14.16 versus 11.24 MJ;P<0.001)in diets containing 17%crude *** N digestibility was greater in broilers offered diets with 17%crude protein than those offered the 22%crude protein diet;irrespec

关键词： Crude protein Maize Phytase Pre-pellet whole grain Response surface

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Irritable bowel syndrome symptom severity improves equally with probiotic and placebo

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World Journal of Gastroenterology 2016年第48期22卷 10631-10642页

作者： Anna Lyra Markku Hillila Teppo Huttunen Sofia Mannikko Mikko Taalikka Julia Tennila Anneli Tarpila Sampo Lahtinen Arthur C Ouwehand Lea Veijola dupont nutrition and Health Global Health and Nutrition ScienceDanisco Sweeteners Oy02460 KantvikFinland Clinic of Gastroenterology University of Helsinki and University Hospital00290 HelsinkiFinland 4Pharma Ltd Lemminkaisenkatu 120520 TurkuFinland Mehilainen Oy Pohjoinen Hesperiankatu 1700260 HelsinkiFinland

AIM To determine the effects of Lactobacillus acidophilus NCFM on irritable bowel syndrome(IBS) symptoms and quality of life(Qo L).METHODS In this randomized triple-blind trial, adult IBS volunteerswho were recruited according to Rome Ⅲ criteria received 109 or 1010 colony-forming units of NCFM or placebo daily for 12 wk. IBS Symptom Severity Score(IBS-SSS), which constituted the primary outcome, and secondary outcomes, including individual IBS symptoms, IBS-related QoL questionnaire, anxiety and depression, defecation frequency, and stool consistency, were assessed at baseline at the end of the 8-wk runin period, after 4 and 12 wk of intervention, and after a 4-wk *** A total of 340 of 391 randomized volunteers completed the trial. IBS-SSS improved over 12 wk of treatment in all treatment groups, decreasing by a mean ± SD of 44.0 ± 80.2, 50.8 ± 82.4, and 48.3 ± 72.2 in the placebo, active low-dose, and active high-dose groups, respectively. Similarly, secondary outcomes did not differ between treatment groups. However, in a post hoc analysis of volunteers with moderate to severe abdominal pain at baseline(VAS > 35/100), the treatment significantly reduced the sensation of abdominal pain. Pain scores fell by 20.8 ± 22.8, 29.4 ± 17.9, and 31.2 ± 21.9 in the placebo, active low-dose, and active high-dose groups, respectively(P value for placebo vs combined active doses = 0.0460).CONCLUSION NCFM alleviates moderate to severe abdominal pain, consistent with earlier observations of this strain mitigating visceral pain through increased analgesic receptor expression.

关键词： Irritable bowel syndrome Functional bowel disorder Symptom questionnaire Quality of life Visceral pain Abdominal pain Lactobacillus acidophilus Probiotic Intervention

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