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A method for measuring the feeding rhythm of C. monoringensis

A single-ring thorn and rhythm technology, which is applied in measuring devices, color/spectral characteristic measurement, instruments, etc., can solve the problems of high research cost and low accuracy

Inactive Publication Date: 2019-10-25
中国农业大学烟台研究院
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Problems solved by technology

[0004] The existing measurement methods are mainly based on manual visual judgment, the accuracy is not high, it requires a lot of human resources and time investment, and the research cost is high

Method used

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  • A method for measuring the feeding rhythm of C. monoringensis
  • A method for measuring the feeding rhythm of C. monoringensis

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specific Embodiment approach

[0023] The present invention provides a specific embodiment of a method for measuring the feeding rhythm of C. unicircleum: a method for measuring the feeding rhythm of C. unicircleum. A three-month-old C. unicycle with healthy physique and uniform specifications is used for the test. The body length of the single-ringed weed is 4.25±0.50cm in the fully contracted state, and the body weight is 5.69±0.60g after naturally draining the water in the rectum and anal sac. The feedstuff is sea cucumber ginseng material, sea cucumber ginseng material is powder, 60 mesh, crude protein 14.0%, crude fiber 12.0%, crude fat 4.0%, calcium 5.0%, total phosphorus 0.8%, ash 35%, lysine Acid 1.1%. 27 plastic boxes of 70*50*45cm are cultivated. The plastic box is covered with 15cm of sand, 5cm of seawater, and oxygen. In the center of the plastic box, an aerated stone is placed. The height of the aerated stone is 3.5cm, and the diameter of the bottom surface is 3.0cm. The spectrophotometer used...

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Abstract

The invention is applicable to the field of feeding of aquatic animals and provides a method for measuring feeding rhythm of Urechis unicinctus; the method comprises the steps of preparing a standard solution, and scanning by a spectrophotometer to measure maximum absorption wavelength and standard absorbance; grouping culture boxes and Urechis unicinctus, putting Urechis unicinctus in the culture boxes, and providing an empty control box; adding feed to the cultures and the control box each day; collecting by suction to obtain a measurement water sample 1 hour after adding of the feed; measuring absorbance at the maximum absorption wavelength with the spectrophotometer, and processing data to obtain feeding strength of Urechis unicinctus in such period of time. The method allows numerical values to be measured accurately, and the values are direct and accurate; it is possible to provide basis for the feeding management, water quality control and the like for Urechis unicinctus according to the measured feeding rhythm of Urechis unicinctus; the method is also applicable to the measurement of feeding rhythms of other filter feeders.

Description

technical field [0001] The invention belongs to the field of feeding of aquatic animals, and in particular relates to a method for measuring the feeding rhythm of the spiny weeter. Background technique [0002] At present, the methods for measuring the feeding rhythm of aquatic animals include the gastrointestinal filling method, the daily feeding rate method, the adaptive feeding method, and the observation method. However, these methods are not suitable for filter-feeding and slag-feeding spinyweeds. [0003] The gastrointestinal filling method uses chemical reagents to fix the target, then dissects it, and then visually observes the filling degree of the gastrointestinal food. The determination of the daily food intake rate method is based on the gastrointestinal filling method, and the average value is obtained by measuring the fullness index on the same day, as well as the time required for food to pass through the digestive tract to determine the daily food intake rat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54G01N21/31
CPCG01N21/314Y02A40/81
Inventor 刘峰孙涛马正张小栓张永军刘春娥于海瑞
Owner 中国农业大学烟台研究院
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