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| 不同规格乌苏里拟鲿耗氧率及窒息点研究 | |
| 引用本文： | 刘金兰,陈志伟,张家全,张博伦,董少杰,苗建新,楚伟,齐红莉.不同规格乌苏里拟鲿耗氧率及窒息点研究[J].天津农学院学报,2012(3):4-7,31. |
| 作者姓名： | 刘金兰 陈志伟 张家全 张博伦 董少杰 苗建新 楚伟 齐红莉 |
| 作者单位： | 1. 天津农学院 水产科学系 天津市水产生态及养殖重点实验室,天津 300384 2. 天津市西青区精武镇农业服务中心,天津 300382 3. 天津市天祥水产有限责任公司,天津 301500 |
| 基金项目： | 天津市淡水养殖科技创新与成果转化基地项目“北方特种鱼乌苏里拟鲿养殖技术开发项目”(08050504) |
| 摘 要： | 采用流水封闭式装置，测定了不同大小乌苏里拟鲿的耗氧率和窒息点及其24h的昼夜变化情况。结果表明，大（16．97±1．94g）、中（1．06±0．06g）和小规格（0．10±0．01g）乌苏里拟鲿耗氧率分别为0．1608、0．1912和0．2750mg／h·g，且各组间差异极显著（P〈0.01）；窒息点分别为0．4114、0．5719和0．8652mg／L，且各组间差异极显著（P〈0.01）。所有规格乌苏里拟鲿晚上11：00耗氧率最高，其中大规格和中规格晚上（20：00-8：00）耗氧率持续高于白天（8：00—18：00），且分别在白天和晚上两时段内耗氧率平稳，而小规格乌苏里拟鲿昼夜耗氧率没有明显规律性变化；所有规格乌苏里拟鲿晚上平均耗氧率均高于白天。 |
| 关 键 词： | 乌苏里拟鲿 耗氧率 窒息点 |
Studies on Oxygen Consumption Rates and Suffocation Points of Three Sizes Pseudobagras ussuriensis |
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| LIU Jin-lan,CHEN Zhi-wei,ZHANG Jia-quan,ZHANG Bo-lun,DONG Shao-jie,MIAO Jian-xin,CHU Wei,QI Hong-li.Studies on Oxygen Consumption Rates and Suffocation Points of Three Sizes Pseudobagras ussuriensis[J].Journal of Tianjin Agricultural College,2012(3):4-7,31. | |
| Authors: | LIU Jin-lan CHEN Zhi-wei ZHANG Jia-quan ZHANG Bo-lun DONG Shao-jie MIAO Jian-xin CHU Wei QI Hong-li |
| Institution: | 1,Corresponding Author(1.Tianjin Key Laboratory of Aqua-ecology and Aquaculture of Tianjin,Department of Fishery Science,Tianjin Agricultural University,Tianjin 300384,China;2.Agricultural Service Center of Jingwu Town,Xiqing District,Tianjin 300382,China; 3.Tianjin Tianxiang Aquatic Company Limited,Tianjin 301500,China) |
| Abstract: | The oxygen consumption rates and suffocation points of three sizes Pseudobagras ussuriensis were determined using enclosed device with flowing water. The change of oxygen consumption rate in 24 h was also monitored. The results show that the oxygen consumption rate of large （ 16.97±1.94 g） , medium （ 1.06±0.06 g） and small size （0.10±0.01 g） were 0.160 8, 0.191 2 and 0.275 0 mg/h g, respectively, the differences among the three sizes were extremely significant （P〈0.01） and their asphyxia pcints were 0.411 4, 0.571 9 and 0.865 2 mg/L, respectively, the differences among the three sizes were also extremely significant （P〈0.01） . All peaks of oxygen consumption rate of the three sizes appeared at around 11 ： 00 in the evening. The oxygen consumption rates of large and medium sizes during night （20： 00-8： 00） were higher consistently and stably than that during day （8： 00-18： 00）, but that of small size did not show regular change. The average oxygen consumption rates of the three sizes during night were higher than that during day. |
| Keywords: | Pseudobagras ussuriensis oxygen consumption rate suffocation point |
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