Austrian Journal of Technical and

Key words: flexibility, adaptability, transformation, cultural and performing arts centers. 
One of the major components of poultry 
fodder is wheat, soybean meal, corn, which serve 
as 
an 
indispensable 
source 
of 
protein, 
carbohydrates, 
calcium 
and 
phosphorus. 
However, those substances are contained in 
fodder in the form of complex indigestible 
conglomerates bound by complex organic 
compounds — phytates and cannot be digested 
by birds. One of the solutions of this critical issue 
is the introduction into the poultry diet of phytase.
Phytase is a specific enzyme that initiates the 
decomposition of phytate — phytic compounds, 
which contain 70–90% of the total phosphorus in 
plant. Due to the inability of poultry to produce 
own phytase availability of phosphorus, calcium, 
protein and other nutrients is limited. The use of 
phytase 
provides 
a 
new 
qualitative 
approach to improving fodder efficiency and 
reducing nutrients consumption per unit of 
livestock production. In spite of the fact that 
phytases 
from 
several 
species 
of 
bacteria, yeast and fungi have been characterized, 
commercial production of this enzyme currently 
focuses on fungi of the Aspergillus because of 
high productivity [1, 585; 2, 581]. However, great 
drawback of industrial fungal strains is their low 
activity, despite the fact that the essential 
requirement to enzymes is their high activity. 
The production of phytase have been affected by 
One of the major components of poultry fodder is 
wheat, soybean meal, corn, which serve as an 
indispensable source of protein, carbohydrates, 
calcium and phosphorus. However, those 
substances are contained in fodder in the form of
complex indigestible conglomerates bound by 
complex organic compounds — phytates and 
cannot be digested by birds. One of the solutions of 
this composition of the cultivation medium (carbon 
and nitrogen sources) play significant role on 
enzymes production. The effect of different carbon 
and nitrogen sources on phase production by 
Aspergillus 
niger 
was 
investigated.