Feed for SPF (Specific Pathogen Free) reserved rabbits from 71 days old to adult and preparation method thereof

Abstract

The invention relates to a feed for SPF (Specific Pathogen Free) reserved rabbits from 71 days old to adult. The feed comprises the following components in parts by weight: 190-210 parts of corn flour, 160-180 parts of bean pulp, 240-260 parts of bran cake, 540-560 parts of alfalfa meal, 0.5-1 part of methionine the content of which is 98%, 2-4 parts of lysine, 6-8 parts of mountain flour for feed, 11-13 parts of calcium hydrophosphate, 2.5-3.5 parts of table salt, and 10 parts of premix. The invention also discloses a preparation method of the feed. The method comprises the following operation steps of; respectively weighting the raw materials; blending the weighted raw materials; uniformly stirring and packaging the raw materials; and sterilizing the packaged raw materials. According to the invention, the feed is scientific and reasonable in formula; the SPF reserved rabbits from 71 days old to adult fed by the feed are high in weight increase and high in survival rate; and by adopting Co60 radiation sterilization, the content loss of nutrient substances is small, and the feed is easy to store.

Description

technical field [0001] The invention relates to the field of feed processing, in particular to a feed for SPF backup rabbits from 71 days old to growing and a preparation method thereof. Background technique [0002] In addition to being used in medicine, pharmacy and biological research, laboratory rabbits are also widely used in the pharmaceutical industry. The quality of experimental rabbits directly affects the accuracy of experimental results and the quality of medicines, and is related to people's health. At present, SPF (Specific pathogen Free, no specific pathogen) rabbit breeding population has been established abroad, and the commercialization of supply has been realized, but only a few units and regions in China can reach the SPF level. [0003] SPF backup rabbits refer to rabbits from the age of 71 days to the period of breeding. Breeding rabbits are the basis for the production of commercial meat rabbits. After 2-3 years of use, the production performance of b...

AI Technical Summary

Problems solved by technology

[0007] At present, the method used in the world to kill specific pathogens in SPF rabbit feed is to use high-pressure steam sterilization, that is, to pack the finished feed products and wrap them with specific plastic sheets, and put them into high-pressure chambers. , put in water vapor to make the pressure reach 4.5 standard atmospheric pressure, the temperature reaches above 120 degrees Celsius, and keep the water vapor flowing, the sterilization time is more than 45 minutes, and then take samples for inspection under special circumstances to ensure that the feed does not contain specific pathogens. Can be used, this method is time-consuming, laborious, waste of resources, but also need to use steam boilers and waste a lot of coal

During the combustion of coal, a large amount of waste gas such as carbon dioxide and pollutants such as dust will be produced, which will cause great pressure and pollution to the environment. Causes a large loss of nutrients, and more troubles lead to dampness of the feed and shortening of the storage time of the feed due to the increase in moisture content, and even lead to the growth of mold in the feed and the production of mycotoxins in the high temperature season

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