SU169351A1 - METHOD OF THERMAL LIFE - Google Patents

Description

There is a method of thermally in vivo disinfection of silkworm cocoons from pebrina. It consists in the fact that the cocoons are heated daily for 12-16 hours at 33-40 ° C for several days. This method provides a satisfactory disinfection of pebryan cocoons, but is cumbersome and complex. Therefore, it is not widely used in sericulture.

The proposed method differs from that in that it is not the cocoons that are heated, but the greenery.

A mixture of grenes, obtained from many butterflies, at the age of about two days after laying, is heated in hot water at a temperature of 42 to 52 ° C, depending on the duration of exposure. After heating, the greens are cooled in water at room temperature. Chilled greens are spread in a thin layer and dried in the shade, mixing. Dry greens are stored under generally accepted conditions.

To dry the method, take the grena at a pronounced rosy of the main mass of silkworm eggs, heat it in an ultrathermostat, for example TC-15-M, which maintains the water temperature with an accuracy of + 0.1 ° C. The most convenient and practically suitable for heating are the following thermal doses (combinations of heat and warm-up time): at a water temperature of 45 ° C, 50 minutes; 46 ° C - 30 min; 47 ° C

17 min Heated at one of these combinations, the grenade is cooled to give for 3-5 minutes in water at room temperature. After cooling, it is scattered on a canvas or paper and dried in the shade, mixing. The dried grenade is used for incubation or is stored in the same way as unheated.

The greens intended for repeated summer and autumn fertilizers of the same year are heated with a solution of hydrochloric acid in order to simultaneously prevent the immersion of the grains in the embryonic diapause and provide decontamination from pebrina.

The described method of treating grenes allows to obtain free pebrya infection and caterpillars with normal viability. The use of thermal disinfection of greny intended for breeding purposes is undesirable.

Subject invention

The method of thermal in vivo disinfection from nebrina industrial greny silkworm intended

both for feeding next year, and for repeated summer and autumn feeding of the current year, including a preliminary “artificial revival of it at the age of one’s day by hydroxyacid stimulation, or the groves of the whole technological process, a mixture of creeps derived from many butterflies aged around two days after laying, they are heated in hot water at a temperature ranging from 42 to 52 ° C, depending on the duration of exposure, and then cooled in room temperature water, dried in the shade in a thin layer with stirring and stored further under generally accepted conditions.