Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (35): 132-138.doi: 10.11924/j.issn.1000-6850.2014-1369

Special Issue: 水产渔业

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Evaluation of nutrient composition and comparison of growth performance of juveniles of parentage grass carp, Ctenopharyngodon idellus, fed with bio-floc and Pennisetum sinese

  

  • Received:2014-05-13 Revised:2014-12-04 Accepted:2014-08-08 Online:2015-03-18 Published:2015-03-18

Abstract: To evaluate the value of biofloc technology nutrition, the growth traits and nutritional composition of muscle of grass carp farmed about 60 days were analyzed in the model of biofloc technology (BFT) (as the experimental group) and Pennisetum sinese Roxb( as the control group). As analyzed, the ratio of weight gain of grass carp using BFT were 1.14 times than the control group, and body length, survival rate and condition factor of grass carp were more than the control group. Crude protein and carbohydrate of muscle between the BFT and grass group were significant difference(P<0.05), however, crude fat and ash content of muscle of grass carp were basically identical. In addition, there are sixteen kinds of conventional amino acids and four kinds of delicious amino acids (Asp, Glu, Gly, Ala ); The total content of amino acid were(17.1±1.24)% and(16.803±1.030)% in two groups, respectively, but there were no significant difference between them(P>0.05). The total content of PUFA and HUFA were (32.20± 4.05) % and (34.61 ± 4.08) % in the experimental group, respectively; which was significantly higher than the control group(P<0.01). In summary, the model of BFT was not only improve the growth performance of the juvenile grass carp, but also increase the nutritive value of muscle under no changing the amino acid composition and delicious amino acid. So, BFT may serve as a new type of high quality bait of grass carp’s juveniles.