|
|||||
|
|
| 不同低温条件下吉富罗非鱼的耐受性研究 | |
| 引用本文： | 唐章生,卢其西,林勇,宾石玉,彭婷,钟舒红,甘西.不同低温条件下吉富罗非鱼的耐受性研究[J].广西师范大学学报(自然科学版),2012,30(1):105-110. |
| 作者姓名： | 唐章生 卢其西 林勇 宾石玉 彭婷 钟舒红 甘西 |
| 作者单位： | 1. 广西水产研究所 广西水产遗传育种与健康养殖重点实验室,广西南宁,530021 2. 广西水产研究所 广西水产遗传育种与健康养殖重点实验室,广西南宁530021;广西师范大学 生命科学学院,广西桂林541004 3. 广西大学 动物科学与技术学院,广西南宁,530004 |
| 基金项目： | 国家现代农业产业体系广西罗非鱼创新团队专项基金资助项目，广西科学研究与技术开发计划项目，广西自然科学基金，广西区直属公益性科研院所专项资金项目，广西水产畜牧兽医局科研专项，广西重点实验室开放课题基金资助项目 |
| 摘 要： | 应用室内人工降温,以0.5 ℃/2 h的降温方法研究吉富罗非鱼的低温耐受能力,分析比较不同低温条件下吉富罗非鱼的昏迷情况和死亡情况,评价其低温耐受性.结果表明:在8、9、10和11 ℃持续低温胁迫下,吉富罗非鱼的昏迷温度在8.9～10.5℃,半数昏迷温度为9.6℃左右;从开始出现昏迷到全部死亡的经历时间分别为14.5、18.5、24.5和28.5 h;昏迷维持时间与累计死亡率呈显著的线性相关,分别为:y=-0.0489x2+1.4330x-9.5078(R2=0.9999)、y=-0.0136x2+0.5024x-3.6385(R2=0.9649)、y=0.0038x2-0.0461x-0.1344(R2=0.9843)和y=-0.0034x2+0.2443x-3.2131(R2=0.9945).吉富罗非鱼的耐受性与时间和温度密切相关,其中8℃组耐受时间最短,11℃组最长. |
| 关 键 词： | 吉富罗非鱼 低温胁迫 昏迷维持时间 死亡率 耐受性 |
Tolerance of GIFT Tilapia (Oreochromis niloticus) under Different Low Temperature Stress |
|
| TANG Zhang-sheng , LU Qi-xi , LIN Yong , BIN Shi-yu , PENG Ting , ZHONG Shu-hong , GAN Xi.Tolerance of GIFT Tilapia (Oreochromis niloticus) under Different Low Temperature Stress[J].Journal of Guangxi Normal University(Natural Science Edition),2012,30(1):105-110. | |
| Authors: | TANG Zhang-sheng LU Qi-xi LIN Yong BIN Shi-yu PENG Ting ZHONG Shu-hong GAN Xi |
| Institution: | 1(1.Guangxi Research Institute of Fisheries,Guangxi Key Laboratory of Aquatic Genetic Breeding and HealthyAquaculture,Nanning Guangxi 530002,China;2.College of Life Science,Guangxi Normal University,Guilin Guangxi541004,China;3.College of Animal Science and Technology,Guangxi University,Nanning Guangxi 530021,China) |
| Abstract: | The study was done to assess low-temperature tolerance of GIFT tilapia.In the condition of indoor artificial cooling,with 0.5 °C/2 h cooling down to different low temperature point,the coma and death situation are compared to evaluate their low-temperature tolerance.The results showed that coma temperature ranged from 8.9 °C to 10.5 °C,the semi-lethal duration the temperature of half coma of GIFT tilapia was about 9.6 °C.The time of GIFT tilapia from the beginning coma to dead was 14.5,18.5,24.5 and 28.5 h under low temperatures of 8,9,10 and 11 °C,respectively.The significant linear regression between the coma duration and the cumulative mortality of GIFT tilapia was y=-0.048 9x2+1.433 0x-9.507 8(R2=0.999 9),y=-0.013 6x2+0.502 4x-3.638 5(R2=0.964 9),y=0.003 8x2-0.046 1x-0.134 4(R2=0.984 3),y=-0.003 4x2+0.244 3x3.213 1(R2=0.994 5) at 8,9,10 and 11 °C,respectively.GIFT tilapia lowtemperature tolerance was closely related with coma duration and temperature,and 8 °C group tolerated the shortest,11 °C group the longest. |
| Keywords: | GIFT tilapia(Oreochromis niloticus) low temperature stress coma duration mortality tolerance |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |