论文部分内容阅读
缺氧是指鱼体内部组织、细胞得不到充足氧气以维持其正常机能的状态。为了与水中缺氧区别,可称为“生物缺氧”或“组织缺氧”。窒息(呼吸困难)则是生物缺氧时发生的现象,浮头就是养殖生产上常见的呼吸困难或窒息现象的表现。鱼类出现缺氧窒息有两种情况:一种情况是当水中溶氧不足、气压过低时,即使鱼的呼吸机能正常,体内组织细胞也无法获得充足氧气,而发生“无氧性缺氧”;另一情况是当鱼体的呼吸系统和循环系
Hypoxia refers to the internal organization of fish, cells do not get enough oxygen to maintain its normal functioning state. In order to be distinguished from hypoxia in water, it may be referred to as “biological hypoxia” or “tissue hypoxia”. Asphyxia (dyspnea) is a phenomenon that occurs when an organism is hypoxic. Floating heads are a common manifestation of dyspnea or asphyxia in aquaculture. There are two cases of hypoxia and asphyxia in fish: one case is when the dissolved oxygen in the water is insufficient, the pressure is too low, even if the fish’s respiratory function is normal, the in vivo tissue cells can not get enough oxygen, and the occurrence of “anaerobic hypoxia ”Another case is when the fish’s respiratory system and circulatory system