| 不同规格哲罗幼鱼摄食前后排氨率的研究 |
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| 引用本文： | 杨贵强,张立颖,徐绍刚,王占全,贺杰,周云. 不同规格哲罗幼鱼摄食前后排氨率的研究[J]. 江西农业大学学报, 2012, 0(4): 791-794 |
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| 作者姓名： | 杨贵强 张立颖 徐绍刚 王占全 贺杰 周云 |
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| 作者单位： | 北京市水产科学研究所;国家淡水渔业工程技术研究中心 |
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| 基金项目： | 农业部公益性行业科研专项(201003055-05);北京市重大项目(D101105046210004) |
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| 摘 要： | 采用室内实验生态学方法对5种不同规格(10.64±0.42 g,16.44±0.67 g,24.67±0.74 g,30.90±1.74 g,37.33±0.98 g)哲罗幼鱼摄食前后的排氨率进行研究。结果表明,饱食后,5个规格组哲罗幼鱼的排氨率均迅速上升,到达最大值后再缓慢下降,最后恢复到各自的初始水平;5个规格组哲罗幼鱼的排氨持续时间(DNR)和排氨率峰值时间(TNR)随着体重的增加而延长;哲罗幼鱼摄食前后排氨率(NR)与体重(t)之间的拟合方程分别为:NR=4.323 6 w-0.555 9(R2=0.992 4,10.64 g
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| 关 键 词： | 哲罗 摄食 体重 排氨率 |
The Ammonia Excretion Rate of Young Hucho taimen at Different Weights in Starvation and Satiation |
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| YANG Gui-qiang,ZANG Li-ying,XU Shao-gang, WANG Zhan-quan,HE Jie,ZHOU Yun. The Ammonia Excretion Rate of Young Hucho taimen at Different Weights in Starvation and Satiation[J]. Acta Agriculturae Universitis Jiangxiensis, 2012, 0(4): 791-794 |
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| Authors: | YANG Gui-qiang ZANG Li-ying XU Shao-gang WANG Zhan-quan HE Jie ZHOU Yun |
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| Affiliation: | (Beijing Fisheries Research Institute/National Engineering Technology Research Center for Freshwater Fisheries,Beijing 100068,China) |
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| Abstract: | Using the ecological method,the study measured the ammonia excretion rate of young taimen(Hucho taimen,Pallas) in satiation and starvation,at five weights(10.64±0.42 g,16.44±0.67 g,24.67±0.74 g,30.90±1.74 g,37.33±0.98 g).The results showed that,in satiation,the ammonia excretion rates at the five weights all increased drastically to the maximum,and then decreased slowly to the initial state.DNR and TNR were both prolonged as body weights increased.In starvation,the regression equation of ammonia excretion rate on the weight was NR= 4.323 6 w-0.555 9(R2 = 0.992 4,10.64 g < w < 37.33 g).In satiation,the regression equation of ammonia excretion rate on the weight was NR = 9.371 3 w-0.575 5(R2 =0.952 2,10.64 g < w<37.33 g). |
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| Keywords: | Hucho taimen feeding weight ammonia excretion rate |
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