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| Preliminary study on suitable cellulose content in formulated diet for juvenile Mugilogobius chulae |
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| DOI：10.16768/j.issn.1004-874X.2017.01.023 |
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| Abstract: |
| To assess the effects of cellulose level on growth and feed efficiency of juvenile goby
（Mugilogobius chulae）and provide reference for exploitation of compound feed and the relevant standards
development process，six purified diets with different cellulose levels，that is CK（0.29%），Ⅰ（0.85%），Ⅱ
（2.98%），Ⅲ（7.23%），Ⅳ（14.52%）and Ⅴ（20.63%）were formulated. The protein and lipid contents
were kept constant in all diets. At the end of 8 weeks growth experiment，Survival rate（SR），Weight gain
（WG），Specific growth rate（SGR），Feed conversion ratio（FCR），Feeding rate（FR）and Fullness
（FUL）were measured. Gobys’ intestinal morphology and body compositions with different diertary cellulose
levels were also measured. The results showed that juvenile fishes’ SR decreased with the rising of cellulose
levels. The SR of I（0.85%）was significant different with other groups（P<0.05）. All groups’ WG and
SGR showed upgraded firstly and then decreased with the increase of dietary cellulose. When cellulose level
increased to 7.23%，WG and SGR reached a maximum. Though the FR highly increased related to the increase
of cellulose，there was no significant difference among groups. When dietary cellulose content increased to
20.63%，FCR significantly increased（P<0.05）. The FUL continuously decreased when dietary cellulose
exceeded 2.98%. Meanwhile，dierary cellulose content had effects on the development of goby’s intestinalmorphology. The whole body crude protein and lipid were also significantly influenced（P<0.05）by dietary
cellulose，but mositure and ash were not influenced. The optimum cellulose content in diet for juvenile M.
chulae is 6.74%. |
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