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Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (27): 153-157.doi: 10.11924/j.issn.1000-6850.casb20190900687

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Temperature Effects on Feeding and Oxygen Consumption Rate of Haliotis discus hannai Ino

Duan Jiaoyang1,2(), Liu Hui2,3(), Chen Siqing2,3, Chang Lirong4, Bian Li2,3, Yao Yanyan4, Yang Xiaobin4, Yan Xin4   

  1. 1National Demonstration Center for Experimental Fisheries Science Education , Shanghai Ocean University, Shanghai Engineering Research Center of Aquaculture, Shanghai Collaborative Innovation for Aquatic Animal Genetics and Breeding, Shanghai 201306
    2Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao Shandong 266071
    3Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao Shandong 266071
    4Weihai Changqing Ocean Science &Technology Co., Ltd., Rongcheng Shandong 264316
  • Received:2019-09-25 Revised:2019-10-28 Online:2020-09-25 Published:2020-09-23
  • Contact: Liu Hui E-mail:d1395127939@163.com;liuhui@ysfri.ac.cn

Abstract:

To determine the changes in feeding and oxygen consumption rate of Haliotis discus hannai Ino at different temperature, a laboratory experiment was designed. Two groups of abalone were used as the experimental materials, at 7-8 months old (shell length 2.67±0.02 cm) and 19-20 months old (shell length 6.91±0.04 cm), respectively, cultured under 5 temperature regimes (5℃, 10℃, 15℃, 20℃, 25℃) for 30 d. The feeding rate was recorded. The oxygen consumption rate of abalone was determined by using iodimetry. The results showed that the feeding rate and oxygen consumption rate of the younger abalones (7-8 months) were significantly higher than the older ones (19-20 months). The feeding rate and oxygen consumption rate of abalone increased with increasing temperature and reached a peak at 20℃, then decreased with further increase of temperature. The feeding rate and oxygen consumption rate of 19-20 months old abalone in the 5℃ and 10℃ group differed extremely and significantly from those in the 20℃ group (P<0.01), and the 15℃ and 25℃ group differed significantly from those in the 20℃ group (P<0.05). The feeding rate of 7-8 months old abalone in the 20℃ group was significantly different with those of other temperature groups (P < 0.05), however, the oxygen consumption rate in the 20℃ group had no significant difference with those of 15℃ and 25℃group (P>0.05). The correlation analysis showed that the feeding rate and oxygen consumption rate were in accordance with a cubic function relationship. This study indicates that the feeding rate and oxygen consumption rate of abalone are significantly affected by temperature changes, the suitable temperature is about 20℃, which is of significance for further study on the reasonable and healthy aquaculture of abalone.

Key words: Haliotis discus hannai Ino, temperature, oxygen consumption, feeding rate

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