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对虾和其它甲壳动物一样,其生长不是一个连续的过程,而是在旧壳脱去和新壳尚未硬化之前进行的。因此,对虾的一系列蜕皮过程也就是其逐渐长大的过程。在一般情况下,只要有正常的营养保证,没有病害及环境应激危害,在蜕皮激素的调节下,对虾完全可以正常蜕皮生长。对虾蜕皮在养殖生产上具有重大的意义,现就人工养殖条件下如何确保对虾适时蜕皮生长,提出一些具体施施供参考。 1.在养虾生产中,必须供给对虾生长所需要的各种营养要素,尤其应该满足对虾对蛋白质和不饱和脂肪酸的需要。因此,饵料必须多样化,注意天然饵料与人工配合饲料的合理搭配。自己配制饲料,要选用适宜的配方,切忌粗制滥造。 2.蜕皮激素具有类固醇激素的典型性质,对虾没有在体内生成类固醇的能力。因此,在对虾的饵料中必须经常保持一定含量的类固醇物质,以满足
Like other crustaceans, prawns grow not as a continuous process, but rather as the old shell is removed and the new shell is not yet hardened. Therefore, a series of shrimp molting process is its gradual growth process. Under normal circumstances, as long as there is a normal nutrition assurance, no disease and environmental stress hazards, the regulation of ecdysone, shrimp can completely molt growth. Muck shrimp molt in the production of great significance, is now on the artificial breeding conditions to ensure timely shrimp molt growth, put forward some specific implementation for reference. 1. In shrimp production, the various nutrients required for the growth of prawn must be supplied, and in particular the needs of shrimp for protein and unsaturated fatty acids should be met. Therefore, the food must be diversified, pay attention to the natural feed and artificial diet with a reasonable mix. Prepared their own feed, to choose the right formula, should not be shoddy. 2. Ecdysone Has the typical properties of steroid hormones, shrimp does not have the ability to generate steroids in the body. Therefore, in the shrimp feed must always maintain a certain amount of steroid substances to meet