CS206922B1 - Feeding mixture for monogastric animals and its manufacturing process - Google Patents

Description

Enriched with mycelial proteases produced by fermentation using species and strains of the Basidiomycetes class, either directly in the production nutrient medium or after separation and concentration by concentration.

So far, attempts have been made to increase feed conversion using pure proteases produced primarily by some species and strains of fungi. The application of microbial rennet Mikrozyme, which is obtained by fermentation of sporulating Bacillus subtilis strains, has also been described. A disadvantage of the first method is the possibility of the formation of some health-defective mycotoxins, in particular aflatoxin, while the second method involves sporulating strains of Bacillus subtilis, so that there is a risk of contamination by spores. Obtaining an asporogenic strain is not possible since protease formation with coagulation activity is directly bound to sporulation in Bacillus subtilis strains.

These drawbacks are overcome by the compound feed for monogastric animals and the method of manufacture according to the invention, which is based on the enrichment of mycelial proteases produced by Basidiomycetes fungi applied to the compound feed directly in the production medium or after separation.

Mycelial protease enzymes produced by species and strains of the Basidiomycetes class provide deeper cleavage of high-molecular substances in feed such as proteins, in the digestive tract of livestock, especially monogastric ones such as poultry and pigs. This leads to better utilization of nutrients in compound feed. Increasing feed conversion then results in a reduction in feed consumption per unit increment and increases weight gains per head and day.

Mycelial protease enzymes can be added to the feed mixtures directly after the fermentation is complete, eliminating their separation from the production medium and the use of mycelial culture, both dead and live Basidiomycetes, by separation on filters and centrifuges. Furthermore, their possible purification, stabilization and concentration by concentration are omitted. In addition to the effects of mycelial proteases, the biomass of production fungi from the genus Basidiomycetes and nutrients from the production nutrient medium are used for feeding purposes.

However, liquid or dried pure enzyme preparations of mycelial proteases may be used for feeding purposes.

Increased technical effect of the first method spočí206922 __ _ί ___________________ vápředevším in that in addition to the effect mycelámích proteases for digestion of nutrients, thereby increasing the feed conversion will also use biomasyprodukčních Basidiomycetes and nutrients from the medium, without the risk of incidence of mycotoxin contamination spores using the fungi of the class Basidiomycetes. In addition, simplification of the preparation is advantageous as separation, stabilization, purification and concentration are eliminated.

In the second method, the increased technical effect is that, in addition to the digestion of nutrients and the increase in feed conversion, the concentrated mycelial protease preparation can be easily transported to the compound feed preparation and easier to handle.

EXAMPLE 1

Mycelial proteases obtained by fermentation with Oudemansiella mucida (Schrad. Ex Fr.) Höhn strain are added to the broiler chick feed mixture. in the culture medium in an amount of 3%.

Example 2

Separate and concentrated mycelial proteases obtained by fermentation with Phellínus chrysoloma (Fr.) Donk strain are added to the pig feed mixture in an amount of 1%.

Claims (3)

SUBJECT OF THE INVENTION A compound feed for monogastric animals, characterized in that it is enriched with mycelial proteases produced by fungi of the class Basidiomycetes 2. A method for producing a compound feed according to item 1. characterized in that the enzymes are applied to the feed i; mixtures directly in the production medium 3. A process according to claim 1, characterized in that the enzymes are applied to the feed mixture after separation or stabilization, purification 1a after concentration by concentration.