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近两年,全国各地掀起了一股特种水产养殖热潮,特种水产动物的安全越冬,是其技术关键之一。下面简要介绍几种常见的特种水产动物的越冬方法。 1.稚鳖 当年稚鳖越冬前体重只有5～15克,体内贮存的物质不多,在漫长的冬季,因体内贮存物质的大量消耗,致使体质衰弱,容易生病甚至死亡。因此在越冬前对稚鳖要适当增喂含脂肪较高的饵料。越冬池可利用原来的室内培育池,先将池水排干,再铺泥沙30～40厘米厚,加水5～10厘米深,按每平方米150～200只放入稚鳖。当气温降至10℃时,稚鳖便钻入泥沙中冬眠,此时应将池水蓄满,池上盖竹帘,竹
In the past two years, a wave of special aquaculture has been set off across the country and the safety of special aquatic animals is over winter, which is one of the key technologies. Here are some common species of special aquatic animals overwintering method. 1. juvenile soft-shelled turtle juvenile soft-shelled turtle before weighing only 5 to 15 grams, the body stores less material in the long winter, due to the mass consumption of stored substances in the body, resulting in physical weakness, easy to get sick or even death. Therefore, juvenile soft-shelled turtle before winter should be properly fed with higher fat feed. Overwintering pool can use the original indoor incubation pool, first the water drained, and then deposited sediment 30 to 40 cm thick, add water 5 to 10 cm deep, 150 to 200 per square meter into the juvenile turtle. When the temperature dropped to 10 ℃, the juvenile turtle will drill into the sand in hibernation, this time should be full of water, pool cover bamboo, bamboo