Molecular Nutrition

Effects of Floridoside on Growth Performance and Haematological Indexes of Juvenile Yellow Catfish (Pelteoobagrus fulvidraco)

  • ZHANG Jie ,
  • CHEN Haimin ,
  • ZHOU Qicun
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  • 1. Key Laboratory of Applied Marine Biotechnology, School of Marine Sciences, Ningbo University, Ningbo 315211, China;
    2. Laboratory of Fish Nutrition, School of Marine Sciences, Ningbo University, Ningbo 315211, China

Received date: 2015-04-29

  Online published: 2015-08-13

Abstract

A 10 weeks feeding trail was conducted to investigate the effects of floridoside on growth performance and haematological indexes of juvenile yellow catfish (Pelteoobagrus fulvidraco). Totally 240 individuals of juvenile yellow catfish with average body weight of (2.49±0.04) g were randomly allocated to 4 groups with 3 replicates per group and 20 fish per replicate. The fish in the 4 groups were fed the basal diet supplemented with 0 (control group), 0.1%, 0.2% and 0.4% floridoside, respectively. The results showed as follows: the final body weight (FBW), weight gain rate (WGR) and protein efficiency rate (PER) in 0.1% group were significantly higher than those in other groups (P<0.05), and the specific growth rate (SGR) was also significantly higher than that in other groups except 0.2% group (P<0.05). Dietary floridoside supplemental level had no significant effects on feed efficiency (FE), survival rate (SR), condition factor (CF), hepatopancreas somatic index (HSI) and visceral somatic index (VSI) of fish (P>0.05). When the floridoside supplemental level was 0.1%, serum total protein (TP), cholesterol (CHOL), triglyceride (TG) and glucose (GLU) contents had a higher level, the serum alanine transaminase (ALT) and glutamic oxalacetic transaminase (AST) activities had a lower level, and it had a significant effects on globulin (GLOB) and high-density lipoprotein (HDL) contents compared with other groups (P<0.05). There were no significant effects on blood hemoglobin (HGB) content and the number of white blood cells (WBC) and red blood cells (RBC) (P>0.05). In conclusion, floridoside can promote the growth performance and improve a part of serum biochemical indexes of juvenile yellow catfish in the 0.1% supplemental level.

Cite this article

ZHANG Jie , CHEN Haimin , ZHOU Qicun . Effects of Floridoside on Growth Performance and Haematological Indexes of Juvenile Yellow Catfish (Pelteoobagrus fulvidraco)[J]. Chinese Journal of Animal Nutrition, 2015 , 27(8) : 2443 -2449 . DOI: 10.3969/j.issn.1006-267x.2015.08.016

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