白甲鱼生物学特性及人工驯养技术

Biological Characteristics of Varicorhinus(Onychostoma) simus and Its Artificial Culture Techniques

为保护白甲鱼这一珍稀鱼类资源，对其进行了生物学特性观察及人工驯养技术研究。结果表明：白甲鱼适应温度范围0-38℃，最适摄食生长温度20-28℃；在池养条件下，溶氧量为3mg／L以上，pH值范围为6．5～8．5，投喂人工配合饲料能够正常摄食生长，与鲤、鲫等鱼类相比其生长速度较快。在水温20-25℃条件下，鱼种的尾日增重为0．205g／（尾·d）。野生白甲鱼，可经过人工驯化成为淡水名优养殖鱼类。

The study was conducted to determine the biological characteristics and artificial culture techniques development for Varicorhinus （Onychostorna）simus to protect this rare fish resource. The results showed that the suitable temperature for V. simus was 0 - 38℃, suitable feeding and growing temperature was 20-28℃. Regular growth could be achieved and grew faster than carps and erueian when feed with artificial manufactured feed in pond, dissolved oxygen （DO） above 3 mg/L and pH value between 6.5 to 8.5. Daily gain per fish was 0. 205 gram when the water temperature was between 20 to 25℃. Wide V. sirnus could be cultured and become one of famous and high quality domestic freshwater fishes.