Preparation method of feather fermentation protein feed
A technology of fermented protein feed and feathers, which is applied in the field of preparation of feather fermented protein feed, can solve the problems of multiple anti-nutritional factors, livestock and human hazards, and large pollution, so as to increase crude protein content, help digestion and growth, and have good palatability Effect
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[0017] Dry chicken feathers are added to 30 liters of inorganic salt medium according to every kilogram of feathers. 0.4g of potassium dihydrogen phosphate, 0.24g of magnesium chloride hexahydrate and 0.1g of yeast extract, and use 0.05-0.1mol / L sodium hydroxide aqueous solution to adjust its pH to 9; after mixing, extinguish at 115°C bacterium for 15 minutes, cooled to room temperature; according to the volume ratio of 3% inoculation of Bacillus licheniformis seed liquid in the culture medium; described Bacillus licheniformis seed liquid is Bacillus licheniformis MML2501 provided by China Agricultural Microorganism Culture Collection Management Center, Inoculate the preserved slant to a liquid prepared according to the proportion of beef extract 5g, peptone 10g, sodium chloride 5g and water 1000ml, and adjust its pH to 7.2-7.4 with 0.05-0.1mol / L sodium hydroxide aqueous solution In the medium, 35-37 ℃, 180r / min shaker culture for 20-24 hours, the obtained Bacillus licheniform...
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