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Effect of dietary carbohydrate levels on growth performance in Silurus meridionalis Chen
Fu Shi-Jian (shijianfu9@hotmail.com); Xie Xiao-Jun (xjxie@swnu.edu.cn); Fu Shi-Jian; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2005
Source PublicationActa Hydrobiologica Sinica
ISSN1000-3207
Volume29Issue:4Pages:393-398
AbstractFrom June to August, the growth experiment was conducted in a recirculating rearing system on juvenile of the southern catfish, Silurus meridionalis Chen with initial weight 12.93 +/- 0.13g. The white fishmeal, corn oil and gelatinized cornstarch were used as protein, lipid and carbohydrate respectively. Fish were fed with six iso-nitrogenous (40%crude protein) and iso-lipidic (10% crude lipid) experimental diets contain 0(control diet) 6, 12, 18,24 and 30% of carbohydrate level. At each of the diets, 4 groups of southern catfish ( 12 in each group) were fed at ad libitum ration level for 8 weeks at 27.5 degrees C. The digestibility of carbohydrate was not significantly affected when dietary carbohydrate level did not exceed 18% but decreased when dietary carbohydrate level exceeded 18%. The feeding rate and specific growth rate (SGR) increased with dietary carbohydrate level at a level of dietary carbohydrate not more than 18%, and decreased at a higher level. The feeding rate of 6% and 12% carbohydrate level were significantly higher than those of other levels, and the feeding rate of 30% carbohydrate level was significantly lower than those of other levels. The specific growth rate (SGR) of 6% and 12% carbohydrate level were significantly higher than those of 0, 24 and 30% carbohydrate levels, and specific growth rate ( SGR) of 30 % carbohydrate level was significantly lower than those of 6, 12, 18 and 24 % carbohydrate level. The results suggested the optimal dietary carbohydrate level for growth in this fish was 12%-18%.
Indexed By其他
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/18507
Collection期刊论文
Corresponding AuthorFu Shi-Jian; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Fu Shi-Jian ,Xie Xiao-Jun ,Fu Shi-Jian,et al. Effect of dietary carbohydrate levels on growth performance in Silurus meridionalis Chen[J]. Acta Hydrobiologica Sinica,2005,29(4):393-398.
APA Fu Shi-Jian ,Xie Xiao-Jun ,Fu Shi-Jian,&Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2005).Effect of dietary carbohydrate levels on growth performance in Silurus meridionalis Chen.Acta Hydrobiologica Sinica,29(4),393-398.
MLA Fu Shi-Jian ,et al."Effect of dietary carbohydrate levels on growth performance in Silurus meridionalis Chen".Acta Hydrobiologica Sinica 29.4(2005):393-398.
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