| Autor: |
Bikker P; Wageningen UR Livestock Research, Lelystad, The Netherlands. paul.bikker@wur.nl, Jongbloed AW, Thissen JT |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of animal science [J Anim Sci] 2012 Dec; Vol. 90 Suppl 4, pp. 134-6. |
| DOI: |
10.2527/jas.53798 |
| Abstrakt: |
A meta-analysis was conducted to determine the effect of microbial phytase in pig diets on digestibility and bioavailability of Cu and Zn. Studies (n = 22) into effects of microbial phytase on digestibility and plasma levels of Cu and Zn were included in a dataset and regression analysis was performed to quantify the effect of Aspergillus niger derived 3-phytase in studies (n = 14) with a maximum dietary Zn content of 100 mg/kg and a maximum Cu addition of 20 mg/kg. Phytase inclusion increased digestibility of Zn (P = 0.003) and plasma Zn content (P < 0.001) without affecting digestibility and plasma level of Cu. Based on a comparison with dose-response studies with Zn, we estimated 500 phytase units (FTU) of microbial phytase is equivalent to 27 mg of Zn from ZnSO(4). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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