Journal of Tianjin Agricultural University ›› 2012, Vol. 19 ›› Issue (3): 40-43.

• Researches and Scientific Notes • Previous Articles     Next Articles

Effects of Temperature and pH Value on Amylase Activities in Digestive Organs of Chalcalburnus chalcoides aralensis

BAI Dong-qing1, LIANG Guang-hai1, MIAO Jian-fa2, WU Xuan1, NING Bo1, JIA Zhi-chao1   

  1. 1. Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Department of Fishery Science, Tianjin Agricultural University, Tianjin 300384, China;
    2. Tianjin Tianxiang Aquatic Company Limited, Tianjin 301500, China
  • Received:2012-05-03 Online:2012-09-20 Published:2019-11-12

Abstract: It is aimed to study the effects of temperature and pH value on the amylase activities in digestive tissues of Chalcalburnus Chalcoides aralensis. It would provide theoretical basis and references for studying digestive physiology and nutrition requirements of Chalcalburnus Chalcoides aralensis. The results show that the activities of amylase of Chalcalburnus Chalcoides aralensis increased at first and then decreased with temperature and pH value increase in the designed temperature and pH value ranges. Temperature and pH value had significant effects on the activities of amylase in the digestive tissues of Chalcalburnus Chalcoides aralensis (P<0.05). The optimum temperature in hepatopancreas, forgut, midgut and hindgut of Chalcalburnus Chalcoides aralensis were all 40 ℃, and the optimum pH value were 7.4, 7.4, 7.0 and 7.8 for amylase in the hepatopancreas, forgut, midgut and hindgut, respectively.

Key words: Chalcalburnus Chalcoides aralensis, digestive tissue, amylase, temperature, pH value

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