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传统的养蚕生产,以每张蚕种的产茧量计产,忽视桑叶及人工的消耗,经济收益较低,无效劳动较多。一般张产100斤茧需用桑叶2,000斤,即生产一斤茧需消耗桑叶20斤左右。斤茧用叶量多,势必降低以桑园面积计产的亩桑产茧量,又不提高劳动生产率。农家生产中斤茧用叶量主要由给桑量和给桑回数组成。给桑量过多会浪费叶,过少会影响蚕体发育和经济收益;给桑回数亦然。生产一斤蚕茧究竟用多少桑叶最为经济合理,
Traditional silkworm production, with each silkworm cocoon production count, ignoring mulberry leaves and artificial consumption, low economic returns, more ineffective labor. General production of 100 kg of cocoons need mulberry leaves 2,000 pounds, that is, the production of a pound of cocoons consume about 20 pounds of mulberry leaves. Cattle cocoon with more leaves, is bound to reduce the mulberry area planted mulberry cocoons yield, without increasing labor productivity. The amount of cocoons produced in the farmhouse is mainly composed of the amount of mulberry leaves and the number of mulberry leaves. To excessive volume of mulberry will waste the leaves, too little will affect the development of silkworms and economic benefits; Production of a pound of cocoon how much mulberry leaves with the most economical and reasonable,