Bacillus subtilis feed additive
A technology of Bacillus subtilis and feed additives, applied in the field of Bacillus subtilis feed additives and Bacillus subtilis feed additives, can solve the problems of no direct utilization of nutritional value of farmed animals, unsatisfactory compatibility and application, affecting the survival of bacteria, etc., to reduce the number of prawns. The effect of disease occurrence, enhancement of immunity, and improvement of economic benefits
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Embodiment 1
[0056] Preparation of sea buckthorn freeze-dried powder, prickly pear freeze-dried powder, physalis freeze-dried powder, black currant freeze-dried powder, cactus freeze-dried powder:
[0057] Take freshly ripe sea buckthorn, prickly pear, physalis, black currant, and cactus, remove impurities such as fruit stems and rotten fruits, rinse with a 40°C aqueous solution containing 0.1% by weight of citric acid for 15 minutes under constant stirring, and put them in. Rinse 3 times in pure water, remove and control the moisture; put the sea buckthorn, prickly pear, physalis, black currant, and cactus on a plate and transfer them to the freezer, and quickly cool down to below -45 °C; respectively freeze the sea buckthorn, prickly pear , physalis, blackcurrant and cactus are moved into the sublimation dryer, the sublimation temperature is controlled at -22--32°C, and the vacuum degree is 120-150Pa, so that the material is dried to moisture 100 mesh to obtain sea buckthorn freeze-dried ...
Embodiment 2
[0059] Using the corresponding optimized medium, the liquid culture fermentation equipment is used to separately cultivate Candida utilis, Candida tropicalis, brewing yeast, brewer's yeast and feed yeast, and then use a high-speed centrifuge to separate the bacteria in the fermentation broth, With the vacuum freeze-drying mode, the bacterium mud is dried to obtain the dry powder of Candida utilis and the dry powder of Candida utilis that the live bacteria content is 20 billion / gram respectively, the dry powder of Candida tropicalis that the live bacteria content is 20 billion / gram, the live bacteria content is 200. 100 million / gram of brewing yeast dry powder, 20 billion / gram of live bacteria content of brewer's yeast dry powder and 20 billion / gram of live bacteria content of feed yeast dry powder.
Embodiment 3
[0061] Preparation of fermented eggshell powder:
[0062] Wash egg shells or one or several mixed egg shells of duck egg shells, goose egg shells and quail egg shells, dry them, put them in a far-infrared dryer, dry them with hot air at 180°C for 2 hours, and take them out. Let cool, pulverize into 45 mesh powder; weigh 80 kg of eggshell powder, add an appropriate amount of pure water to make the moisture content of the material at 50% (W), then add 20 kg of dry feed yeast powder obtained in Example 2, and mix well After loading, put it into the fermentation room, and ferment it for 60-72 hours at a temperature of 31-33°C. After the fermentation is completed, adjust the fermentation material to a temperature of 82°C-92°C and a temperature of 80-90%. , carry out the carbonyl ammonia reaction for 22-28 days, then dry the material in an electric oven under the condition of not more than 100 ℃ to a moisture content of less than 5% (W), use a universal pulverizer to pulverize, pass...
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