Effect of dietary carbohydrate level on growth performance, body composition, apparent digestibility coefficient and digestive enzyme activities of juvenile cobia, Rachycentron canadum L

By M. Ren, Q. Ai, K. Mai, Hongming Ma, Xiaojie Wang. 2011

136 citations recorded by the source corpus.

A 9-week feeding trial was conducted to investigate the effect of dietary carbohydrate level on the growth performance, body composition and apparent digestibility coefficient and digestive enzyme activities of juvenile cobia. Six isonitrogenous and isolipidic diets containing graded levels of starch (1.3%, 6.5%, 12.5%, 18.4%, 24.2% and 30.4%) were fed to juvenile cobia. Specific growth rate (SGR), feed efficiency ratio (FER) and protein efficiency ratio (PER) increased with increasing dietary starch up to 18.4% (P<0.05), and thereafter SGR declined but FER and PER remained nearly the same. Apparent digestibility coefficient of starch reduced significantly when dietary starch up to 30.4%. Fish fed the diets with starch from 18.4% to 30.4% showed higher amylase activities in intestinal tract than those fed diets containing starch 1.3% and 6.5% (P<0.05). Significantly higher whole-body lipid contents were observed in fish fed the diets containing higher starch. Whole-body moisture content was inversely correlated with whole-body lipid content, while protein and ash showed no significant differences. Plasma glucose, hepatosomatic index, liver glycogen and liver lipid increased with an increasing dietary starch. Based on SGR and FER, the appropriate dietary starch supplementations of juvenile cobia were estimated to be 21.1% and 18.0 % of diet respectively.

Subfields: Aquatic Science, Immunology

View Paper: https://www.semanticscholar.org/paper/3f4cbe9f46b35a508d37140fd1e78aac5a6553ee

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Aquatic Science

1. K. Mai
2. Wei Xu
3. Q. Ai
4. Wenbing Zhang
5. Mahmoud A. O. Dawood

In Immunology

1. Q. Ai
2. K. Mai
3. Wei Xu
4. Wenbing Zhang

Citations in the corpus

• Growth performance, oxidative stress indices and hepatic carbohydrate metabolic enzymes activities of juvenile Nile tilapia, Oreochromis niloticus L., in response to dietary starch to protein ratios (2015, background): “2010) and juvenile cobia (Ren et al. 2011), an increase in VSI has occurred when dietary starch levels are raised.”
• Effects of dietary rapeseed meal on growth performance, digestion and protein metabolism in relation to gene expression of juvenile cobia (Rachycentron canadum) (2012, methodology): “After the sample collection described above, fecal collection and treatment were conducted according to the method described by Ren et al. (2011). The remaining fish were fed with the same diet assignments in order to determine the apparent digestibility coefficients (ADCs) for dry matter, protein, ”