Effects of the dietary supplementation with fructooligosaccharides on the excretion of nitrogen and phosphorus in Miichthys miiuy fries |
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| Authors: | Wu Tian-xing Song Zeng-fu Cai Li-sheng Ding Xue-yan and Yu Qing-sen |
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| Institution: | (1) Shool of Science, Zhejiang University, 310027 Hangzhou, China;(2) School of Animal Sciences, Zhejiang University, 310027 Hangzhou, China;(3) Key Laboratory for Molecular Design and Nutrition Engineering in Ningbo City, Ningbo Institute of Technology of Zhejiang University, 315100 Ningbo, China;(4) Zhejiang Fisheries Technique Center, 310012 Hangzhou, China |
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| Abstract: | Effects of dietary supplementation with fructooligosaccharides on the excretion of nitrogen and phosphorus inMiichthys miiuy fries were investigated. Nine hundredMiichthys miiuy fries were divided into 3 groups, each with triplicates. The basal diet and the basal diet supplemented with carnitine groups
were considered as the negative and positive controls respectively. Results showed that the nitrogen concentration in excreted
feces decreased significantly in fries fed the diet supplementation with 1000×10−6 fructooligosaccharides and 200×10−6 carnitine (P<0.05). The ammonic-nitrogen concentration decreased significantly in the carnitine group only (P<0.05), indicating the decreasing tendency caused by the supplementation with fructooligosaccharides. Supplementation with
both did not have significant effects on the concentration of phosphorus in feces ofMiichthys miiuy fries.
Project supported by Public Bidding Item in Key Research of Zhejiang Province (No. 02110281-2) and Ningbo Tackle Key Problem
for Agricultural Development (No. 2004C-100030), China |
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| Keywords: | Fructooligosaccharides Miichthys miiuy fries Nitrogen Phosphorus Carnitine |
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