论文部分内容阅读
革胡子鲶又名埃及胡子鲶。是我国八十年代引进的淡水鱼种。革胡子鲶具有个体大,生长快,养殖周期短,食性杂的优点.而且味道鲜美,营养丰富,经济价值甚高。 革胡子鲶属底栖性鱼类。在水底层生活,耐寒能力弱,当水温降至7℃时伏于底部,活动微弱而开始失去平衡。水温6℃持续几个小时就
Leather beard catfish also known as Egyptian bearded catfish. Is the introduction of freshwater fish species in China in the eighties. Catfish has an individual large, fast growth, short breeding cycle, the advantages of food miscellaneous and taste delicious, nutritious, high economic value. Catfish genus benthic fish. Life in the water floor, cold ability is weak, when the water temperature dropped to 7 ℃ at the bottom, weak activity began to lose balance. The water temperature is 6 ℃ for several hours