| 宝石鲈摄食节律和日摄食率的初步研究 |
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| 引用本文： | 孙砚胜,张秀倩,史东杰,孙向军,魏东,梁拥军.宝石鲈摄食节律和日摄食率的初步研究[J].水产科学,2012,31(1):28-31. |
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| 作者姓名： | 孙砚胜 张秀倩 史东杰 孙向军 魏东 梁拥军 |
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| 作者单位： | 1. 北京市水产科学研究所 暨国家淡水渔业工程技术研究中心,北京,100068
2. 天津农学院,天津,300384 |
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| 基金项目： | 北京市科技计划项目，北京市农林科学院所级优秀科技创新团队培养基金资助项目 |
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| 摘 要： | 为了解宝石鲈昼夜摄食规律和日摄食量,采用饱满度指数法在7-9月对124尾宝石鲈在不同昼夜节律下的摄食节律和日摄食率进行了研究。试验结果表明,9:00-17:00为摄食高峰期,凌晨1:00摄食活动最弱,翌日5:00摄食强度明显升高。7-9月,该鱼的日摄食率(用占体质量的百分比表示)分别为6.07%、3.34%、2.37%。宝石鲈有明显的摄食节律,属于白天摄食类型。
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| 关 键 词： | 宝石鲈 摄食节律 日摄食率 |
Feeding Rhythm and Daily Food Intake of Jade Perch Scortum barcoo |
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| SUN Yan-sheng
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ZHANG Xiu-qian
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SHI Dong-jie
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SUN Xiang-jun
,
WEI Dong
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LIANG Yong-jun.Feeding Rhythm and Daily Food Intake of Jade Perch Scortum barcoo[J].Fisheries Science,2012,31(1):28-31. |
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| Authors: | SUN Yan-sheng ZHANG Xiu-qian SHI Dong-jie SUN Xiang-jun WEI Dong LIANG Yong-jun |
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| Institution: | 1 (1.National Engineering Research Center for Freshwater Fisheries,Beijing Fisheries Research Institute, Beijing 100068,China;2.Tianjin Agricultural University,Tianjin 300384,China) |
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| Abstract: | The daily feeding rhythm and daily food intake were studied in 124 samples of jade perch Scortum barcoo with body weight of 235.84~491.63 g at water temperature of 25~27 ℃ by intestinal fullness index.The feeding intensity peak was observed between 9:00-17:00,decreasing after 17:00 and the minimum at 1:00.The daily food intake expressed in percentage of the total body weight was found 6.07%,3.34%,and 2.37% in July,August and September,respectively. |
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| Keywords: | Scortum barcoo feeding rhythm daily food intake |
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