SHORT COMMUNICATION
Comparative effects of Aspergillus fumigatus and A. niger phytases on phosphorus and calcium digestibilities and phosphorus faecal excretion in the growing pig
 
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Société Chimique Roche, Centre de Recherche en Nutrition Animale (CRNA), P.O. Box 172, 68128 Village-Neuf, France
Publication date: 1998-08-22
 
J. Anim. Feed Sci. 1998;7(Suppl. 1):177–180
 
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ABSTRACT
Phytases may ameliorate phytic-P antinutritional properties. The aim of the present work was to evaluate comparatively the effects of Aspergillus fumigatus (AFP) and A. niger (ANP) phytases included in a growing pig phytate rich diet (rape seed, maize and barley) at the level of 500 U/kg. The phytic-P rich diet systematically induced hypophosphataemia, hypercalcaemia and hyperphosphatasaemia. Mean phosphataemia was increased and mean phosphatasaemia and calcaemia were decreased by the ingestion of AFP or ANP. The apparent digestibility of P was significantly higher for the AFP diet (52.8%) than for the ANP diet (46.5 %) or the control diet (30.8%). The improvement in Ca digestibility by AFP and ANP was not statistically significant. AFP and ANP significantly decreased the P concentration in faeces by 33 and 17%, respectively.
 
CITATIONS (2):
1.
Optimization of the catalytic properties ofAspergillus fumigatusphytase based on the three-dimensional structure
Andrea Tomschy, Michel Tessier, Markus Wyss, Roland Brugger, Clemens Broger, Line Schnoebelen, Adolphus P.G.M. Van Loon, Luis Pasamontes
Protein Science
 
2.
Engineering of Phytase for Improved Activity at Low pH
Andrea Tomschy, Roland Brugger, Martin Lehmann, Allan Svendsen, Kurt Vogel, Dirk Kostrewa, Søren Lassen, Dominique Burger, Alexandra Kronenberger, Loon van, Luis Pasamontes, Markus Wyss
Applied and Environmental Microbiology
 
ISSN:1230-1388