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Application method of phytase in feed

An application method, phytase technology, applied in the application field of phytase in feed, can solve the problems of not being able to withstand high temperature and not making significant progress, so as to reduce feed cost, improve eggshell quality of eggs and poultry, and reduce excretion volume effect

Inactive Publication Date: 2017-01-18
彭程
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Currently commercially produced phytase has high enzyme activity at 37°C, but it cannot withstand the high temperature during granulation
Research institutes and companies at home and abroad start with the screening of new natural genes and the molecular transformation of existing genes, but no significant progress has been made

Method used

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Embodiment Construction

[0011] Below in conjunction with embodiment the present invention is further elaborated.

[0012] An application method of phytase in feed. The prepared liquid phytase is sprayed on bentonite according to the mass ratio of 1:8-15 to prepare enzyme-containing bentonite. When feeding, the enzyme-containing bentonite is evenly mixed with pellet feed feed, the mass ratio of the mixing material is 1:9800-10500; the amount of inorganic phosphate in the pellet feed is 35%-40% of the original amount.

[0013] The prepared liquid phytase refers to: put Aspergillus niger, saccharomyces, and Bacillus subtilis into the culture medium, add methanol as an inducer, and obtain it after fermentation. The fermentation time is 5-7 days, and the temperature is set at 28-30°C. .

[0014] The strains used in the production of enzyme preparations need to use relatively cheap and simple raw materials. They are easy to grow without adding inducers, and grow rapidly. The produced enzymes are easy to s...

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Abstract

The invention discloses an application method of phytase in feed. The application method includes the steps that prepared liquid phytase is sprayed on bentonite in the mass ratio of 1:(8-15), enzyme-containing bentonite is prepared, the enzyme-containing bentonite and particle feed are evenly stirred during feeding, and the mass ratio of stirred materials is 1:(9,800-10,500); in the particle feed, the using amount of inorganic phosphorus accounts for 35% to 40% of the original using amount. According to the application method, the requirements of high-temperature prilling for the phytase are reduced, the special extracting process of enzymes is not required, collection of the enzymes at the normal temperature can also be guaranteed, the using ratio of phytate phosphorus in pig feed is increased by 20% to 40%, and the using ratio of phytate phosphorus in poultry feed is increased by 31% to 58%; mineral elements and nutrient substances combined with phytic acid are released, the production performance of poultry is improved, and the quality of egg poultry shells is improved; the discharging amount of phosphorus in animal faces is decreased, and environment pollution is reduced; insufficient phosphorus supplying is relieved; the addition amount of the phosphorus-containing feed is saved, and the feed cost is reduced.

Description

technical field [0001] The invention relates to an application method of phytase, in particular to an application method of phytase in feed. Background technique [0002] 60%-70% of the phosphorus in plant feed exists in the form of phytate phosphorus. Monogastric animals lack phytase, so it is difficult to use the phytic acid. Most of it is excreted with feces, causing the environmental pollution of phosphorus that is concerned by the world. . At the same time, in order to meet the phosphorus needs of livestock and poultry, it is necessary to add expensive inorganic phosphate to the feed. However, my country is a country that is extremely short of phosphorus sources. The output of phosphorus is less than one-tenth of the demand. The price of phosphorus sources is soaring, which brings great economic pressure to feed production and farmers. At the same time, the production of inorganic phosphorus also brings serious environmental pollution. With the continuous development...

Claims

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Application Information

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IPC IPC(8): A23K20/189A23K20/28
Inventor 彭程
Owner 彭程
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