Yeast iron-rich premix and preparation method thereof

Abstract

The invention provides a yeast iron-rich premix and a preparation method thereof. The raw materials of the premix comprise saccharomyces cerevisiae, ferrous sulfate and fermentation auxiliary materials. The fermentation auxiliary materials comprise malt wort, a carbon source, and a nitrogen source. The invention provides a preparation method of the premix. The method comprises the steps that: (1)the fermentation auxiliary materials are weighed according to a certain proportion, and are mixed, such that a mixture is obtained; (2) saccharomyces cerevisiae and 1 / 2 of the total amount of ferroussulfate are added to the mixture; an obtained mixture is cultivated for 18-24h under a temperature of 35-37 DEG C; the rest of the ferrous sulfate is added to the mixture, and the mixture is cultivated for 24-48h under a constant temperature of 36-37 DEG C; when it is detected that an organic iron content in the product reaches 30-35mg / g, cultivation is stopped, such that the yeast iron-rich premix is obtained. The strain contained in the premix provided by the invention is strictly selected and bred according to the law of microecology. The quality of the strain is excellent, and viable cellcontent is high. The iron-rich yeast premix is prepared by using waste saccharomyces cerevisiae, such that resource recycling is realized.

Description

technical field [0001] The invention belongs to the field of livestock and poultry feed, and in particular relates to a yeast iron-rich premix and a preparation method thereof. Background technique [0002] The rapid development of the economy has brought significant economic benefits to the society, but it has also triggered an energy crisis, caused environmental degradation, and even threatened human health. Therefore, the transformation of the economic development model has become an inevitable trend of economic development, and it is now developing rapidly in the direction of low-carbon, environmental protection, and greening, especially the aquaculture industry that is closely related to economic development. For example, the breeding method tends to be intensive. Globalization, veterinary drug manufacturing and feed processing tend to be green. [0003] From the perspective of healthy reproduction, development and growth of animals, and improvement of body immunity, a...

AI Technical Summary

Problems solved by technology

[0005] At present, my country's feed industry has relatively little research and development on trace essential elements for feeding. Among them, inorganic ferrous sulfate is usually used to supplement iron, which has a low absorption rate and most of it is excreted with animal feces, which seriously pollutes the breeding environment. and the natural environment, and even endanger human health, the use of inorganic iron preparations does not conform to my country's low-carbon, green and environmentally friendly economic development model