:: Volume 20, Issue 2 (2021) ::
IJFS 2021, 20 Back to browse issues page
Research Article: Evaluation of Yarrowia lipolytica lipase 2 on growth performance, digestive enzyme activity and nutritional components of Russian sturgeon (Acipenser gueldenstaedtii)
W.Q. Chen, C.C. Zheng, Z.H. Jin, Z. Ye, J.W. Wu, S.Q. Qian, Z.J. Wu, C. Sun, Y. Sun, H. Fei *
Zhejiang Sci-Tech univrsity , feihui@zju.edu.cn
Abstract:   (228 Views)
The effects of Yarrowia lipolytica lipase 2 (YLL2) on growth performance, digestive enzyme activity and muscle nutritional components of Russian sturgeon (Acipenser gueldenstaedtii) were evaluated in a 56-day feeding experiment. Four experimental groups of fish with mean weight of 4.465 g were used in the study: Control group (0-control), Group 1 (1.0 g/kg YLL2), Group 2 (1.5 g/kg YLL2) and Group 3 (2.0 g/kg YLL2), respectively, with three repetitions. Fish fed diets with YLL2 at 1.0 g/kg showed the highest growth compared with that of the other groups (p<0.05). For nutrient apparent, docosahexenoic acid (DHA) and eicosapentenoic acid (EPA) concentrations in fish muscle of group which fed with 1.0 g/kg YLL2 increased 5.05% and 7.45% respectively, compared with that of control group (p<0.05). Considering the digestive enzyme activity, lipase and protease activity in liver, spleen and intestine of G1 fish was also significantly enhanced compared with that of control group (p<0.05). While, significant increase of amylase activity in intestine was only observed in fish treated with 2.0 g/kg YLL2. The present results suggested that YLL2 (1.0 g/kg) could be used as potential diet additives for aquaculture Russian sturgeon.
Keywords: Yarrowia lipolytica lipase, Sturgeon, Nutritional components, Growth performance, Digestibility
Full-Text [PDF 483 kb]   (76 Downloads)    
Type of Study: Orginal research papers | Subject: aquaculture
Received: 2019/05/31 | Accepted: 2020/01/7 | Published: 2021/03/20


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Volume 20, Issue 2 (2021) Back to browse issues page