Pig and cow immune growth aid
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[0049] The preparation method of pig, bovine immune enhancer:
[0050] (1) Preparation method of natural mineral preparation
[0051] The tuffaceous slate is crushed and ground into powder, passed through a 400-600 mesh sieve, and set aside.
[0052] (2) Preparation method of lactic acid bacteria preparation
[0053] 1) Lactic acid bacteria medium
[0054]
[0055]2) Primary expansion culture: After the above components are fully mixed, heat to dissolve, adjust the pH to 6.0-7.0, and sterilize at 120 degrees Celsius for 20 minutes. After cooling, inoculate lactic acid bacteria and cultivate at 28-32°C for 24 hours. It is lactic acid bacteria liquid.
[0056] 3) Secondary expansion culture: filter the bacterial solution after the first expansion culture, add the above medium, and scale up the culture at 1:5. The culture temperature is 30-32 degrees Celsius, and the time is 48 hours.
[0057] 4) Add the secondary expanded culture solution into the bran-adsorbed bacteria...
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