Application of infrared heart rate measurement technology in the preservation and transportation of Crassostrea hongkongensis
Heart rate can reflect the vitality level and physiological status of oysters and can be used as a vital characteristic indicator to monitor the physiological metabolism level of oysters.This study aims to optimize the heart rate measurement technology during the survival and circulation process of Crassostrea hongkongensis and explore the survival of oysters.Taking C.hongkongensis as the research object,a linear mathematical model was used to determine the heart position of the oysters and the infrared heart rate measurement technology was optimized by combining infrared sensors and PowerLab devices.The effects of salinity fluctuations,linear induced dormancy,and storage period of oysters during the live circulation process were discussed.Effect of heart rate.Results:After pre-treatment with 6 mm drilling holes,temporary cultivation in seawater had little effect on the vitality of oysters.The survival rate still reached 100%on the 9th day.There was no significant difference in heart rate between 2 and 18 hours using the infrared measurement method(P>0.05);individual size,dry dew,salinity,and temperature all significantly affect the heart rate of oysters(P<0.05).The heart rate of oysters stored in seawater measured by infrared technology shows a significant upward trend over time(P<0.05).The heart rate of oysters exposed to storage at the end of the period increased and then decreased over time(P<0.05).Excessive abiotic stress can cause cardiac arrest,which may have adverse effects.Conclusion:Infrared measurement technology is suitable for measuring oyster heart rate.Changes in heart rate during the survival period effectively reflect the physiological state of oysters.Heart rate can be used as a vitality measurement indicator for oysters to stay alive without water.Research on the oyster survival monitoring system based on heart rate as an indicator has a certain reference significance.
Grassostrea hongkongensisheart positionoptimization techniqneheart rate variabilityvitality index
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