Evaluation of Damage Caused by Fish Pump Based on Principal Component Analysis

doi:10.11924/j.issn.1000-6850.casb2021-0044

Abstract

Abstract:

To provide technical parameters for the research and improvement of fish pump, the damage comprehensive evaluation method of vacuum fish pump was established by means of Principal Component Analysis (PCA). Experiments on Carassius auratus were carried out by vacuum fish pump to obtain fish body damage data. A comprehensive injury evaluation model was established by measuring the injured surface area ratio, 24-hour survival rate, red blood cell number, white blood cell number, superoxide dismutase activity, alanine aminotransferase activity and creatinine content. The results showed that the cumulative contribution rate of three principal components extracted by PCA was 78.232%, which could represent most of the fish damage. The comprehensive evaluation model of fish damage by vacuum fish pump was F=0.285X₁+0.111X₂+0.316X₃+0.366X₄-0.118X₅+0.234X₆. There was no significant damage to the surface and viscera of fish by vacuum fish pump, and the comprehensive score was -0.102, which was close to that of the control group, indicating that the damage effect of vacuum fish pump on fish was very small. The results of experiments show that SOD activity, white blood cell count and body surface damage area ratio are the data indexes that have great influence on damage evaluation. The comprehensive damage evaluation model established by PCA can be used as a feasible method to evaluate the damage of fish, which provides a powerful reference for the improvement of fish suction pump.

Key words: vacuum fish pump, Carassius auratus, damage assessment, principal component analysis, comprehensive evaluation model

CLC Number:

Shan Jianjun, Guan Chongwu, Song Hongqiao, Liu Shijing, Hong Yang, Zhuang Baolu. Evaluation of Damage Caused by Fish Pump Based on Principal Component Analysis[J]. Chinese Agricultural Science Bulletin, 2021, 37(29): 140-145.

Figures/Tables 6

References 32

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组别	重复经吸鱼泵次数	备注
A组	1次	随机选取
B组	2次	选取损伤程度较高的鱼
C组	5次	选取损伤程度较高的鱼
对照组	0次	随机选取

组别	重复经吸鱼泵次数	备注
A组	1次	随机选取
B组	2次	选取损伤程度较高的鱼
C组	5次	选取损伤程度较高的鱼
对照组	0次	随机选取

组别	体表损伤面积比/%	红细胞数/（×10¹¹个/L）	白细胞数/（×10⁹个/L）	SOD活力/(U/mL)	ALT活力/(U/L)	Cr含量/(μmol/L)	存活率/%
A组	0.78±0.24c	16.25±4.62a	5.33±1.06b	258.53±27.25ab	1.72±0.47b	46.39±11.46a	100
B组	1.59±0.42b	14.83±1.24ab	6.96±2.83ab	285.75±23.06a	1.87±0.47b	42.38±15.60a	100
C组	4.10±1.13a	11.23±2.53b	12.17±4.69a	247.92±57.24ab	2.01±0.54b	40.28±7.91a	100
对照组	0.51±0.30c	13.68±3.36ab	7.73±2.66ab	222.79±38.76b	3.35±1.35a	52.45±16.90a	100

组别	体表损伤面积比/%	红细胞数/（×10¹¹个/L）	白细胞数/（×10⁹个/L）	SOD活力/(U/mL)	ALT活力/(U/L)	Cr含量/(μmol/L)	存活率/%
A组	0.78±0.24c	16.25±4.62a	5.33±1.06b	258.53±27.25ab	1.72±0.47b	46.39±11.46a	100
B组	1.59±0.42b	14.83±1.24ab	6.96±2.83ab	285.75±23.06a	1.87±0.47b	42.38±15.60a	100
C组	4.10±1.13a	11.23±2.53b	12.17±4.69a	247.92±57.24ab	2.01±0.54b	40.28±7.91a	100
对照组	0.51±0.30c	13.68±3.36ab	7.73±2.66ab	222.79±38.76b	3.35±1.35a	52.45±16.90a	100

成份	初始特征值			提取平方和载入
成份	合计	方差/%	累积/%	合计	方差/%	累积/%
F₁	2.080	34.659	34.659	2.080	34.659	34.659
F₂	1.527	25.451	60.110	1.527	25.451	60.110
F₃	1.087	18.122	78.232	1.087	18.122	78.232
F₄	0.607	10.115	88.347	-	-	-
F₅	0.542	9.029	97.376	-	-	-
F₆	0.157	2.624	100.000	-	-	-