Sweet potato dregs fermented feed and preparation method thereof

Abstract

The invention discloses a sweet potato residue fermentation feed and a preparation method thereof,and relate to the field of preparing animal feed from plant materials. The fermentation feed is prepared by using 75-80% of sweet potato residue and 20-25% of wheat bran as a raw material and an auxiliary material, and adding a reagent based on the raw material; mixing 0.75-1.5% of urea, 0.75-1.5% of ammonium sulfate, 0.5-0.7% of mono potassium phosphate and 0.4-0.6% of magnesium sulfate to obtain a fermentation substrate; mixing bacillus subtilis, saccharomycopsis fibuligera, trichoderma viride and bacterium solution of lactobacillus plantarum to prepare a bacteria liquid of combined fermentation strains through aerobic fermentation. The weight ratio of the fermentation substrate to the bacteria liquid of the combined fermentation strains is 1:1-1.2; the volume ratio of four bacteria liquids is 1-3:1-3:1-3:1-3. The method can increase the amount of true protein of the fermentation substrate, reduce the amount of coarse fibers, improve the feed palatability and digestibility and utilization, and fully improve the nutritional value of sweet potato residue, thereby having both economic benefits and environmental benefits.

Description

technical field [0001] The invention relates to the technical field of animal feed produced from plant materials. Background technique [0002] my country is the largest sweet potato producer in the world. The perennial sweet potato planting area is 75-80 million mu, accounting for 4.2% of my country's total cultivated land, accounting for about 60% of the world's planting area, and its output accounts for about 80% of the world's total. Sweet potato slag is the residue produced during the processing of sweet potato starch. It has high water content, many bacteria, easy to spoilage, low protein content and high fiber content in dry matter, and is usually discarded as waste or used as low-quality feed raw materials Simple utilization will result in resource waste and environmental pollution. How to develop and utilize sweet potato residue resources has become an urgent problem to be solved in my country's starch industry. Using biotechnology, especially microbial fermentation...

AI Technical Summary

Problems solved by technology

Sweet potato slag is the residue produced during the processing of sweet potato starch. It has high water content, many bacteria, easy to spoilage, low protein content and high fiber content in dry matter, and is usually discarded as waste or used as low-quality feed raw materials Simple utilization will cause waste of resources and environmental pollution. How to develop and utilize sweet potato residue resources has become an urgent problem to be solved in my country's starch industry

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