1 材料与方法
1.1 试验材料
1.2 试验装置
1.3 试验方法
1.3.1 试验流速的确定
1.3.2 试验设计
1.4 测定指标和方法
1.4.1 生长性能指标
表1 生长性能测定指标 |
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1.4.2 生化指标
1.5 数据处理
2 结果与分析
2.1 运动强度对生长性能的影响
2.1.1 成活率
表2 运动强度对许氏平鲉幼鱼成活率的影响 |
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Anhui Agricultural Science Bulletin >
2024 , Vol. 30 >Issue 20: 42 - 50
DOI: https://doi.org/10.16377/j.cnki.issn.1007-7731.2024.20.009
Wilderness training of Sebastes schlegelii juvenile fish based on variable flow rate swimming training
Received date: 2024-06-02
Online published: 2024-10-29
To improve the fish resources of Sebastes schlegelii and explore the effects of swimming training on the growth of Sebastes schlegelii, wilding training with different exercise intensity exercise intensities was carried out. With exercise intensity 0 as the control, 4 exercise intensity were set,which were 50%, 75%, 125% and 150%, respectively. The growth performance and biochemical indexes of the Sebastes schlegelii were measured after 30 days of training. Growth performance included survival rate, weight gain rate, visceral-body ratio, fattenity and specific growth rate. Biochemical indexes included alkaline phosphatase (AKP), catalase (CAT), glutamic oxalacetic transaminase (GOT) and lysozyme (LMZ) activities, and total amino acid content. The growth performance results showed that, exercise intensity had little effect on surviral rate of juverile fish compared with the control, different exercise intensity significantly improved the weight gain rate, fattening and specific growth rate of juvenile fish, and decreased the visceral-body ratio of juvenile fish (P<0.05). Biochemical index results showed that compared with the control group, 50% exercise intensity significantly enhanced the activities of AKP, GOT and LMZ, and increased the total amino acid content. 75% exercise intensity significantly enhanced the activities of AKP, CAT and LMZ, and increased the total amino acid content (P<0.05). 125% and 150% exercise intensity significantly inhibited the activities of AKP and CAT, enhanced the activities of GOT and LMZ, and decreased the total amino acid content (P<0.05). These results indicated that moderate swimming exercise training could improve the growth performance indexes and biochemical indexes, improve muscle quality, enhance antioxidant and regulatory ability, and promote the healthy growth of juvenile Sebastes schlegelii, and the best performance was 75% exercise intensity.
CHEN Shihong , DENG Liyu , ZHANG Yutian , WU Zhongxin , YU Xiaoming , TIAN Tao . Wilderness training of Sebastes schlegelii juvenile fish based on variable flow rate swimming training[J]. Anhui Agricultural Science Bulletin, 2024 , 30(20) : 42 -50 . DOI: 10.16377/j.cnki.issn.1007-7731.2024.20.009
表1 生长性能测定指标 |
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表2 运动强度对许氏平鲉幼鱼成活率的影响 |
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