Effect of Dietary Carbohydrate on Growth, Glucose Tolerance, and Liver Composition of Juvenile Striped Bass

Autor: Brian C. Small, Joseph H. Soares
Rok vydání: 1999
Předmět:
Zdroj: North American Journal of Aquaculture. 61:286-292
ISSN: 1548-8454
1522-2055
DOI: 10.1577/1548-8454(1999)061<0286:eodcog>2.0.co;2
Popis: Dietary carbohydrate utilization by juvenile striped bass was evaluated in two studies. An incomplete factorial design was employed to determine the effect of carbohydrate complexity and dietary level on glucose tolerance. Five diets were formulated to contain 0, 12.5, or 25% of glucose or cornstarch, respectively. After 4 weeks, fish were fasted and administered an oral glucose challenge of 167 mg glucose/100 g body weight. Blood samples were collected at 0, 1, 2, 3, 4, 5, and 6 h after administration. Fasting plasma glucose concentrations (7.2 ± 0.8 mM/L) were similar among all treatments. Plasma glucose concentrations peaked higher at 4 and 5 h after administration in fish fed diets containing 25% glucose (23.9 ± 3.6 and 23.3 ± 3.2 mM/L, respectively) and 25% cornstarch (26.1 ± 2.0 and 23.9 ± 4.0 mM/L, respectively) when compared with plasma values for fish fed 0 and 12.5% carbohydrate (P < 0.05). There was neither a significant effect of carbohydrate type nor a significant interaction between...
Databáze: OpenAIRE
Externí odkaz: