ACTA AGRICULTURAE BOREALI-SINICA ›› 2011, Vol. 26 ›› Issue (S2): 219-223. doi: 10.7668/hbnxb.2011.S2.046

Special Issue: Drought and water saving Aquatic products

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Influence of Two Kinds of Microecologics on the Digestive Enzymes in Grass Carp

WANG Di, LI Shao-wu, YIN Jia-sheng, LU Tong-yan   

  1. Heilongjiang River Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Harbin 150070, China
  • Received:2011-10-27 Published:2011-12-31

Abstract: Two kinds of microecologics(named M-Ⅰ and M-Ⅱ),which were based on the Bacillus subtilis and had already been developed and applied in the practice,were selected to determine their influence on several digestive enzymes in grass carp.M-Ⅰ was used to mix with the feeding and M-Ⅱ was poured into the water of the ponds.Four groups were set in this study,including the control group,M-Ⅰ group,M-Ⅱ group,and the combination group of these two microecologics.After the usage of microecologics for 3 months,the amylase,protease and lipase of the livers and intestines were determined and compared with each other.The results indicated that M-II preparations,which mainly functioned on regulating the water quality,did not affect the three digestive enzymes in grass carp,while M-I preparations,which could promote digestion and growth of fishes,were found to greatly improve the enzyme activities.In addition,the mix usage of M-Ⅰ and M-Ⅱ were proved to play a role in both regulating the water quality and promoting digestion,which would further promote the growth and reproduction of grass carp.Therefore,it could be concluded that microecologics were benefit for the rapid and healthy growth of grass carp farmed in the ponds.

Key words: Microecologics, Grass carp, Amylase, Protease, Lipase

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Cite this article

WANG Di, LI Shao-wu, YIN Jia-sheng, LU Tong-yan. Influence of Two Kinds of Microecologics on the Digestive Enzymes in Grass Carp[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(S2): 219-223. doi: 10.7668/hbnxb.2011.S2.046.

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