Heat clearing powder for treating chicken egg drop syndrome in summer and its preparing process

Abstract

The invention relates to a heat-clearing powder for treating low egg-laying syndrome in summer and its preparing process, which is prepared from the following constituents (by weight portions) through mixing homogeneously: dyers woad leaf 48-72g, radix isatidis 48-72g, calcium sulphate 48-72g, rhubarb horsetails 24-36g, compound of glauber-salt and liquorice 24-36g. The preparing process consists of disintegrating the raw materials, passing through 20-80 mesh sieves, and mixing homogeneously.

Description

technical field [0001] The invention relates to a medicine for poultry and a preparation method thereof, in particular to Qingresan for treating laying hens' summer egg production decline syndrome and a preparation method thereof. Background technique [0002] At present, Egg Drop Syndrome is a viral infectious disease of young hens. The clinical feature is that the hens cannot reach the peak egg production as scheduled during the laying period, or the egg production drops sharply, accompanied by changes in eggshells. [0003] The pathogen of this disease belongs to group III adenovirus, which can agglutinate poultry erythrocytes, and can grow well on duck-derived cells, goose cells, and chicken embryo liver cells. The virus with a particularly high content can be obtained by inoculating duck or goose embryo allantoic cavity . It is stable when treated with chloroform and pH 3-10, inactivated at 60°C for 30 minutes, but can still survive at 56°C for 3 hours. The virus can ...