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随着河蟹养殖业的不断发展,蟹苗的需求量激增,而天然资源极不稳定,人工繁殖的蟹苗各项成本高,近几年来蟹苗价格成倍增长。因此,在幼蟹饲养过程中分析幼蟹死亡的原因及如何提高成活率是河蟹养殖户极为关心的问题。 幼蟹培育是以河蟹的大眼幼体培育到体重10克左右的养殖过程,在这培育过程中河蟹死亡的原因大致有: 1.蟹苗的质量。天然蟹苗具有生长快,成蟹个体大
With the continuous development of crab farming, the demand for crabs has surged, while the natural resources are extremely unstable. The cost of artificial breeding crabs is high, and the price of crabs has doubled in recent years. Therefore, it is a matter of utmost concern for crab farmers to analyze the causes of juvenile crab death and how to improve the survival rate in the process of crab feeding. Crab cultivation is based on the crab’s big eye larvae cultured to a body weight of about 10 grams of farming process, crabs in this breeding process the reasons for the death are generally: 1. Crab quality. Natural crabs have fast growth, crab individual large