Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (4): 159-164.doi: 10.11924/j.issn.1000-6850.casb2021-0318

Special Issue: 生物技术 水产渔业 畜牧兽医 水稻

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Comparative Study on Biological Indexes and Meat Nutritional Value of Cyprinus carpio Under Earth Pond Reared Mode and Rice Field Reared Mode

LIU Yuting(), HUANG Shiyu, LI Liujia, ZHAO Tianzhang, LI Huiying, SU Zifeng, LONG Xiaowen()   

  1. College of Agriculture and Biological Sciences, Dali University, Dali, Yunnan 671003
  • Received:2021-03-26 Revised:2021-10-26 Online:2022-02-05 Published:2022-03-16
  • Contact: LONG Xiaowen E-mail:2963410877@qq.com;longxiaowen123@sina.com

Abstract:

This study aims to investigate the differences of biological indexes and meat nutrients of Cyprinus carpio from earth pond reared mode and rice field reared mode (earth pond reared is defined as ER and rice field reared as RR, respectively). Three ER and three RR carps (approximately 800 g) were collected to measure and compare the biological indexes. In addition, the contents of conventional nutrients, amino acids and fatty acids of meat were analyzed and compared between ER and RR. The results showed that the condition factor and meat yield of ER were significantly higher than those of RR, while higher caudal peduncle length/caudal peduncle depth ratio was recorded in RR. Higher contents of crude fat, crude protein, ash, total essential amino acids, total nonessential amino acids, total amino acids and total monounsaturated fatty acids, and the essential amino acid score of meat were detected in ER, while significantly higher contents of total polyunsaturated fatty acids, ∑n-6 PUFA, and total highly unsaturated fatty acids were recorded in RR. In conclusion, the RR has slender body, lower meat yield and lower conventional nutrient contents; the meat amino acids contents of ER are higher than that of RR, while the meat fatty acids composition of carps of the two modes has their own advantages, respectively.

Key words: rice field reared, earth pond reared, Cyprinus carpio, biological indexes, nutritional value

CLC Number: