水产营养

Effects of Five Lipid Source Diets on Growth of Pelteobagrus fulvidrac

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  • (1. Preclinical Medicine and Biological Science College of Soochow University, Suzhou 215123, China; 2. Research Institute
    of Aquaculture, Suzhou 215000, China)

Online published: 2010-01-20

Abstract

In order to compare the effects of dietary lipid sources on growth of Pelteobagrus fulvidrac, five experimental diets containing respectively rape oil, soybean oil, peanut oil, lard and rapeseed were fed to 225 fish with initial mean weight of (17.42±1.24) g which were allotted to five groups, and three replicates in each group of 15 fish in each replicate. The trial lasted for 61 days. The results showed that the specific growth rate, feed conversion rate, protein efficiency rate,protein doposit rate and energy retention rate of Pelteobagrus fulvidraco were better for soybean oil, peanut oil and lard groups than those of the rape oil group (P<0.05). And soybean oil, peanut oil and lard did not affect the meat quality for Pelteobagrus fulvidrac. The storage of the soybean oil in the mesentery and the muscle was higher than that of the other groups. There was the accumulation trend of the lard amount in the hepatopancreas and the mesentery. The overall effect of rapeseed on Pelteobagrus fulvidrac was significantly better than that of rapeseed oil, especially the specific growth rate of body weight of Pelteobagrus fulvidrac in rapeseed group increased by 22.22%, and feed conversion ratio decreased by 14.28% (P<0.05). The experiment also showed that both C18∶2n-6 and C18∶3n-3 were dietary essential fatty acids for Pelteobagrus fulvidrac. In fatty acid metabolism, the requirement of Pelteobagrus fulvidrac for C18∶2n-6 was more than that for C18∶3n-3. In conclusion, soybean oil, peanut oil and lard were appropriate dietary lipid sources for Pelteobagrus fulvidrac. Pelteobagrus fulvidrac fed the diet containing rapeseed gained better growth performance than that of rape oil.[Chinese Journal of Animal Nutrition, 2010,22(1):100-107]

Cite this article

ZHUGE Yan1,YE Yuantu1*,CAI Chunfang1,ZHANG Weiming2,GU Jinshou2 . Effects of Five Lipid Source Diets on Growth of Pelteobagrus fulvidrac[J]. Chinese Journal of Animal Nutrition, 2010 , 22(01) : 100 -107 . DOI: 10.3969/j.issn.1006-267x.2010.01.016

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