Method for judging high-quality adult eriocheir sinensis
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A technology for Chinese mitten crabs and adult crabs, applied in the field of aquaculture, can solve problems such as poor plumpness, dryness, and large differences in the quality of adult crabs, and achieve the effect of avoiding damage to river crabs and preventing slipping
Pending Publication Date: 2021-11-26
FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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As a seasonal aquatic product, the consumption span of river crabs is as long as 5 months. The quality of crabs varies greatly in differen...
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Embodiment 1
[0020] The method for judging the adult crab of high-quality Chinese mitten crab is to measure the mature crab of Chinese mitten crab with a vernier caliper and an electronic balance. The specific steps are as follows:
[0021] 1) Use a vernier caliper to measure the width at the widest part of the adult Chinese mitten crab. The measurement accuracy is millimeters, and it is recorded as A;
[0022] 2) Measure the mass of Chinese mitten crabs with an electronic balance 24 hours after the dehydration of the adult crabs, and the measurement accuracy is grams, which is recorded as B;
[0023] 3) The quality of adult Chinese mitten crabs was judged according to the following indicators: female crabs with a B / A greater than 2.6 were judged as high-quality, and male crabs with a B / A greater than 3.1 were judged as high-quality.
[0024] Using the above method, the quality of adult Chinese mitten crabs caught in Jiangsu Province was judged on September 20, 2019. The obtained data and ...
Embodiment 2
[0032] The method for judging the adult crab of high-quality Chinese mitten crab is to measure the mature crab of Chinese mitten crab with a vernier caliper and an electronic balance. The specific steps are as follows:
[0033] 1) Use a vernier caliper to measure the width at the widest part of the adult Chinese mitten crab. The measurement accuracy is millimeters, and it is recorded as A;
[0034] 2) Measure the mass of Chinese mitten crabs with an electronic balance 24 hours after the dehydration of the adult crabs, and the measurement accuracy is grams, which is recorded as B;
[0035] 3) The quality of adult Chinese mitten crabs was judged according to the following indicators: female crabs with a B / A greater than 2.6 were judged as high-quality, and male crabs with a B / A greater than 3.1 were judged as high-quality.
[0036] Using the above method, the quality of adult Chinese mitten crabs caught in Jiangsu Province was judged on December 20, 2019. The obtained data and r...
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Abstract
The invention discloses a method for judging high-quality adult eriocheir sinensis, and which belongs to the field of aquaculture science. The method comprises the following steps: measuring the width of the adult eriocheir sinensis by using a vernier caliper and recording as A, measuring the quality of the adult eriocheir sinensis by using an electronic scale and recording as B, and judging that the adult eriocheir sinensis is high-quality according to the condition that B/A of female crabs is greater than 2.6; and judging that the adult eriocheir sinensis is high-quality if the B/A of the male crabs is greater than 3.1, and judging the quality of adult eriocheir sinensis. The ratio of the weight of the dehydrated adult crabs to the width of the crab shells is adopted for accounting, and the method is simple, easy to implement, convenient and reliable. Under the condition of the same crab shell width, the weight is larger when muscles in adult crabs are fuller and hepatopancreas are richer so that the ratio of the weight to the crab shell width value is larger. On the premise that crab bodies are not damaged, the basic values of the adult crabs are utilized to judge the high-quality adult crabs of the eriocheir sinensis.
Description
technical field [0001] The invention relates to a method for judging the maturity of high-quality Chinese mitten crab, which belongs to the field of aquaculture. Background technique [0002] Chinese mitten crab (Eriocheir sinensis), commonly known as river crab, belongs to the phylum Arthropoda, Crustacea, Decapod order, and the genus Eriocheir. It is deeply loved by people because of its delicious meat and rich nutrition. Eriocheir sinensis is widely distributed in the provinces along the Bohai Sea, the Yellow Sea and the East my country Sea. The natural distribution of the population is mainly in the middle and lower reaches of the Yangtze River. [0003] In the Yangtze River Basin, under normal circumstances, from the end of September every year, adult crabs start to be sold one after another, and the sales can continue until February of the following year. As a seasonal aquatic product, the consumption period of river crab is as long as 5 months. The quality of crabs v...
Claims
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IPC IPC(8): G01B5/02G01G17/00
CPCG01B5/02G01G17/00
Inventor 付龙龙潘建林朱平张燕
Owner FRESHWATER FISHERIES RES INSITUTE OF JIANGSUPROVINCE
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