Silkworm is a variable-temperature animal, and the summer temperature is high, which has many unfavorable factors for the feeding and growth of silkworm. "Three thin" is the key to good growth and development of silkworms: 1. Silkworm eggs should be thin. The temperature in the silkworm chamber is affected to varying degrees by the pressure and air flow. If silkworm silkworms are placed densely in silkworm silkworms and silkworms are put in a lot, the wind penetration force is low, and the temperature will rise sharply, thus affecting the normal growth and development of silkworms. Therefore, when feeding summer silkworms, the silkworms in the interior of the silkworm must be thinned to facilitate the circulation of air. 2, cocoon to be thin. Silkworm is a warm-blooded animal. If silkworm cocoons are densely packed and silkworm coops together, the temperature in the room will rise. Generally 100 cubic meters of silkworm housing, can only put 16-18 silkworm cocoons, keep the upper and lower cocoons have a certain distance, so that the air flow in the cocoon between the rotation, flow. 3, silkworm head to be thin: higher natural temperatures in summer, thin head of silkworm has the following benefits: 1 is conducive to silkworm satiation. Due to the influence of temperature, the silkworm eats mulberry faster, and the head of the silkworm gets looser, so that the silkworm can eat enough to eat. 2 is conducive to the growth and development of silkworms. The silkworm reared for a short period of time and grew fast. In general, the body length of silkworms increased by 27-fold, body length increased by 17-fold, and body surface area increased by 500-fold. In such a large volume change situation, only the thinning of the silkworm can be beneficial to the growth and development of the silkworm. 3 is conducive to reducing the incidence rate. Silkworm heads are sparse, and there is little excrement and good indoor air. Relatively speaking, it is not easy to induce silkworm diseases. Second, silkworm heads are thin, and silkworms do not crawl together, making it difficult to scratch the cortex and cause silkworm disease. China Agricultural Network Editor
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