Dietary effect of phytogenic phytase and an addition of microbial phytase to a diet based on field beans, wheat, peas and barley on the utilization of phosphorus, calcium, magnesium, zinc and protein in piglets

Pallauf, J.; Rimbach, Gerald; Pippig, S.; Schindler, Bryan J.; Höhler, D.; Most, Erika

doi:10.1007/bf01622225

Cited by 45 publications

(25 citation statements)

References 24 publications

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“…All the indicators of Zn status we investigated in this study, except growth performance and bone bending moment, responded linearly to the dietary Zn level. As previously reported by Pallauf et al [22][23][24], our study confirms that the Zn requirement is above 56 mg·kg -1 Zn in complex diets.…”

Section: Zn Balancesupporting

confidence: 92%

Bioavailability of two sources of zinc in weanling pigs

Dourmad

Guinotte²,

Nys

2002

Anim. Res.

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-Thirty-two pigs, weaned at 28 days of age with an average body weight of 9 kg, were used in an experiment devoted to the assessment of the bioavailability of an organic Zn source (ZnOrg) compared to Zn sulfate. Pigs were fed a basal diet containing 28 mg·kg -1 of Zn supplemented with ZnSO 4 or ZnOrg to provide 0, 10, 20 and 30 mg·kg -1 of supplemental Zn. In order to reduce the amount and the variability of their Zn stores, pigs were fed the basal diet for a 7-day adjustment period preceding a 19-day experimental period. Growth performance and bone bending moment were not affected by the level nor the source of zinc. On the contrary, plasma zinc concentration and alkaline phosphatase activity (P < 0.001), bone zinc concentration (P < 0.001), liver and empty body zinc concentrations (P < 0.01) as well as the amount of Zn retained estimated both by the balance technique (BT) (P < 0.001) and by the comparative slaughter technique (CST) (P < 0.01) increased linearly in response to supplemental Zn. However, the two Zn sources exhibited a similar bioavailability. Twenty-seven percent of Zn intake was retained when measured by means of the balance technique, regardless of the dietary level or zinc source. Zn retention was 54% lower when measured by means of the CST as compared to the BT. (0)2 23 48 50 80; e-mail: jondreville@st-gilles.rennes.inra.fr de croissance et le moment de flexion de l'os n'ont été affectés ni par le niveau ni par la source de zinc supplémentaire. Au contraire, la teneur en zinc et l'activité de la phosphatase alcaline du plasma (P < 0,001), les teneurs en zinc osseuse (P < 0,001), hépatique et corporelle (P < 0,01) ainsi que la quantité de zinc retenu estimée par la technique du bilan (P < 0,001) et celle des abattages comparés (P < 0,01) augmentaient linéairement avec l'addition du zinc. Cependant, aucune différence entre les sources n'a été détectée. Le coefficient de rétention de zinc, estimé par la technique du bilan, était de 27 % en moyenne, indépendamment du niveau ou de la source de zinc supplémentaire. Estimée par la technique des abattages comparés, la rétention de Zn était de 54 % inférieure à la valeur obtenue selon la technique du bilan.porc / zinc / biodisponibilité / source / indicateur

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Section: Zn Balancesupporting

confidence: 92%

Bioavailability of two sources of zinc in weanling pigs

Dourmad

Guinotte²,

Nys

2002

Anim. Res.

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“…Phytate binds positively charged molecules (cations), such as Ca 2+ , Mg 2+ , Zn 2+ , Fe 2+ , Mn 2+ , and Cu 2+ , or proteins below the isoelectric point because phytate is strongly negatively charged above pH 2. Supplementation with phytase has been reported to increase the digestibility of Ca, Mg, Mn, Zn, Cu, and Fe in pigs at a dosage level of 500 to 1,500 phytase FTU/ kg of feed [2,3]. A meta-analysis showed that phytase inclusion up to 500 FTU/kg rapidly increased the generated digestible Zn and Cu.…”

Section: Introductionmentioning

confidence: 97%

Super High Dosing with a Novel Buttiauxella Phytase Continuously Improves Growth Performance, Nutrient Digestibility, and Mineral Status of Weaned Pigs

Zeng

Tian

et al. 2015

Biol Trace Elem Res

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This study was conducted to evaluate the efficacy of a novel Buttiauxella phytase to pigs fed P-deficient, corn-soybean meal diets. One hundred and twenty crossbred piglets (9.53 ± 0.84 kg) were allocated to one of five treatments which consisted of four low P diets (0.61 % Ca and 0.46 % total P) supplemented with 0, 500, 1,000, or 20,000 FTU/kg phytase as well as a positive control diet (0.77 % Ca and 0.62 % total P). Each treatment had six replicated pens with four pigs per pen. Pigs were fed the experimental diets for 28 days. Phytase supplementation linearly improved (P < 0.05) average daily gain (ADG), feed conversion ratio (FCR), and apparent total tract digestibility (ATTD) of dry matter, gross energy, crude protein, Ca, and P in weaned pigs. Super high dosing with phytase (20,000 FTU/kg) further increased (P < 0.05) ADG compared with 500 FTU/kg phytase inclusion group, as well as ATTD of Ca and P. Metacarpal bone characteristics and several trace mineral concentration in bone, plasma, or organ tissues were linearly (P < 0.05) improved at increasing dose of phytase. Super high dosing with phytase (20,000 FTU/kg) supplementation improved (P < 0.05) Mn and Zn concentration in bone compared to normal dose of phytase supplementation (500 or 1,000 FTU/kg). In conclusion, supplementation of 500 FTU of Buttiauxella phytase/kg and above effectively hydrolyzed phytate in a low-P corn-soybean diet for pigs. In addition, a super high dosing with phytase (20,000 FTU/kg) improved macro- or micro mineral availability and growth performance.

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“…InsP 6 bound P is poorly available to monogastric animals like pigs causing excessive P excretion, which results in environmental pollution in areas with high densities of animals [8,9]. Naturally occurring plant phytase in the feed [10][11][12][13] or added commercial microbial phytase [14][15][16] catalyses the hydrolysis of InsP 6 , producing myo-inositol pentakis-, tetrakis-, tris-, bis-, monophosphates (InsP 5 -InsP 1 ) and finally myo-inositol [17]. The extent to which InsP 6 and its degradation products are hydrolysed before and during digestion is of significance for the availability of P. Therefore, it is of great interest to investigate the InsP 6 degradation pathways and products.…”

Section: Introductionmentioning

confidence: 99%