Non-antibiotic sucking pig milk replacer and preparation method
A technology for teaching trough feed and suckling pigs, applied in feed, animal feed, animal feed, etc., can solve the problem of not taking into account the influence of synergy and processing technology functions, tributyrin can not completely replace antibiotics, etc. , to achieve the effect of improving animal production performance, enhancing immune function and anti-disease ability, and improving activity
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Embodiment 1
[0037] Example 1 Preparation of Bacillus subtilis powder
[0038] 1. Preparation of Bacillus subtilis CGMCC No.6511 live bacteria preparation
[0039] 1) Preparation of Bacillus subtilis seed solution: Inoculate the preserved strains of the test tube slope into a test tube containing 15 mL of culture medium, and cultivate in a constant temperature shaker at 37°C for 16-20 hours, rotating at 225 rpm, until the number of viable bacteria reaches 10 7 CFU / mL, inoculate 1% into a 250mL Erlenmeyer flask containing 100mL seed culture medium, culture in a constant temperature shaker at 37°C for 16-20h, the shaker speed is 225rpm, until the number of viable bacteria reaches 10 7 CFU / mL, as a seed solution for later use.
[0040] The seed medium is: glucose, 20.0g / L; peptone, 10.0g / L; yeast powder, 4.0g / L; sodium chloride, 5g / L; distilled water to 1000mL, pH 7.0±0.2.
[0041] 2) Liquid submerged fermentation culture
[0042] Use a 5L vertical fermentor for liquid fermentation culture. The inocul...
Embodiment 2
[0048] Example 2 Preparation of Lactobacillus acidophilus powder
[0049] 1) Preparation of Lactobacillus acidophilus CGMCC No.6499 seed solution: The Lactobacillus acidophilus species stored in the glycerol cryopreservation tube is streaked on the MRS agar medium plate with an inoculating needle, and incubated at 37°C for 20 hours. Then, the single colony grown on the plate was inoculated into a 250 mL Erlenmeyer flask containing 100mLMRS liquid medium, and incubated at 37°C for 20h. Streak the cultured bacteria liquid on the MRS medium plate again. After incubating at 37°C for 20 hours, inoculate a single colony into a 250mL conical flask containing 100mLMRS liquid medium, and culture at 37°C for 20 hours. Repeat the above operation 3 times to complete the activation of Lactobacillus acidophilus.
[0050] Preparation of Lactobacillus acidophilus seed liquid: Add the activated Lactobacillus acidophilus bacterial liquid to a 5L fermenter with 5% inoculum. The culture parameters a...
Embodiment 3
[0059] Example 3 Preparation of Pediococcus lactis powder
[0060] 1) Preparation of Pediococcus lactis CGMCC No.6500 seed solution
[0061] Inoculate the preserved strains on the inclined surface of the test tube into an anaerobic tube containing 20 mL of MRS liquid medium, and cultivate at a constant temperature of 37°C for 20 hours until the number of viable bacteria reaches 10 7 CFU / mL, inoculate 1% in a 250mL Erlenmeyer flask containing 100mL MRS liquid medium, and anaerobic culture at 37°C for 20h, until the number of viable bacteria reaches 10 7 CFU / mL (count on MRS agar medium plate) and above, as seed solution for later use.
[0062] 2) Liquid submerged fermentation culture
[0063] The liquid seed liquid of Pediococcus lactis was added to a 50L fermentor at an inoculum of 1%, and the culture parameters were: temperature, 37°C; stirring speed, 50rpm; pH value, 6.0±0.5; culture time, 20h. Add 0.5% of the total fermentation volume of CaCO during the fermentation process 3 , Adj...
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