Method for preparing protein calcium powder for feed by crawfish shells

Abstract

The invention relates to a method for preparing protein calcium powder for feed by crawfish shells, belonging to the preparation technical field of a feed additive. The method comprises the steps of cleaning, sterilizing, drying, crushing and microwave auxiliary acidifying, neutralizing and drying crawfish shell waste after being processed to prepare the protein calcium powder with very high utilization rate; and when the protein calcium powder is added to the animal feed, the aim of disease resistance, high efficiency and health of livestock breeding can be achieved, further, growth rate, disease resistance and laying rate of livestock can be improved drastically, and utilization rate of calcium in the crawfish shell powder can be improved drastically. The method avoids resource waste, reduces air and environment pollution from the crawfish shells, and has notable economic and social benefits. The method is low in production cost, short in production period, high in product yield, stable in product quality and easy in usage. The method solves the problems that the utilization rate of the calcium in the prior crawfish shell powder is low, so that a large amount of crawfish shell waste is removed as garbage, further, the resource is wasted and the environment is polluted.

Description

technical field [0001] The invention relates to a method for preparing feed protein calcium powder by using crayfish shells, belonging to the technical field of feed additive preparation. Background technique [0002] Crayfish are widely distributed in the middle and lower reaches of the Yangtze River in my country, including Jiangsu, Hubei, Hunan, Jiangxi, Zhejiang, Anhui, Shandong and other provinces. For example, in 2011, the aquaculture output in Hubei Province alone reached 297,000 tons, and in 2012, the province's growth rate was about 7%. With the continuous increase of people's demand for crayfish and the increasing export volume of crayfish, the aquaculture area of ​​crayfish in the country will increase year by year. At present, the processing ratio of crayfish in the whole country accounts for about 15% of the total output. For example, in 2011, Hubei Province alone produced more than 30,000 tons of shrimp shells from the processing line; Consumption will also g...

AI Technical Summary

Problems solved by technology

Due to the large amount of shrimp shells and no good treatment methods, the utilization rate of shrimp shell powder calcium is very low, resulting in a large amount of shrimp shell waste being treated as garbage, which not only wastes resources, but also causes environmental pollution.