Method for preparing bacillus subtilis traditional Chinese medicine feed additive
A technology for Bacillus subtilis and feed additives, which is applied in the field of preparation of bacteria powder, can solve the problems of uneven quality of Bacillus subtilis, unscientific composition of ingredients, backward equipment and technology, etc., and achieves accelerated animal growth rate and broad market application prospects. , the effect of promoting rapid growth
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Embodiment 1
[0018] A preparation method of bacillus subtilis traditional Chinese medicine feed additive, comprising the following steps:
[0019] Step 1, inoculate Bacillus subtilis for feed on the slant seed medium, and cultivate at 35°C for 48 hours; the mass percentage content of each component in the slant seed medium is: 0.5% glucose, 0.2% peptone, 0.5% beef extract, Yeast extract 0.5%, sodium chloride 0.5%, agar 1.5%, the balance is water;
[0020] Step 2. Pick 2-4 rings of bacterial lawn from the freshly cultured slant and inoculate it in a 250ml Erlenmeyer flask equipped with 50ml liquid expansion medium, and cultivate it on a shaker at 35°C and 240rpm for 16h to obtain a seed solution for later use;
[0021] The mass percentage content of each component in the liquid expansion medium is: 0.5% glucose, 0.2% peptone, 0.5% beef extract, 0.5% yeast extract, 0.5% sodium chloride, and the balance is water;
[0022] Step 3, according to the ratio of mass ratio of 2:1:0.2, take Pueraria...
Embodiment 2
[0031] A preparation method of bacillus subtilis traditional Chinese medicine feed additive, comprising the following steps:
[0032] Step 1, inoculate Bacillus subtilis for feed on the slant seed medium, and cultivate at 37° C. for 48 hours; the mass percentage content of each component in the slant seed medium is: glucose 1.5%, peptone 2%, beef extract 1.5%, Yeast extract 1.5%, sodium chloride 0.5%, agar 2%, the balance is water;
[0033] Step 2. Pick 2-4 rings of bacterial lawn from the freshly cultivated slant and inoculate it in a 250ml Erlenmeyer flask equipped with 50ml of liquid expansion medium, shake and culture at 37°C and 240rpm for 24h to obtain seed liquid, and set aside;
[0034] The mass percentage content of each component in the liquid expansion medium is: glucose 1.5%, peptone 2%, beef extract 1.5%, yeast extract 1.5%, sodium chloride 0.5%, and the balance is water;
[0035] Step 3, according to the ratio of mass ratio of 2:1:0.2, take Pueraria root, Rhizom...
Embodiment 3
[0043] A preparation method of bacillus subtilis traditional Chinese medicine feed additive, comprising the following steps:
[0044] Step 1, inoculate Bacillus subtilis for feed on the slant seed medium, and cultivate at 36° C. for 48 hours; the mass percentage content of each component in the slant seed medium is: glucose 1.0%, peptone 1.5%, beef extract 1.0%, Yeast extract 1.2%, sodium chloride 0.5%, agar 1.8%, the balance is water;
[0045] Step 2. Pick 3 rings of bacterial lawn from the cultivated fresh slant and inoculate it in a 250ml Erlenmeyer flask equipped with 50ml of liquid expansion medium, and cultivate it at 36°C and 200rpm on a shaker for 20h to obtain a seed solution for later use;
[0046] The mass percentage content of each component in the liquid expansion medium is: glucose 1.2%, peptone 1.6%, beef extract 1.2%, yeast extract 1.2%, sodium chloride 0.5%, and the balance is water;
[0047] Step 3, according to the ratio of mass ratio of 2:1:0.2, take Puera...
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