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Regulations on glucose metabolism affected by dietary carbohydrate in different strains of juvenile gibel carp ( Carassius gibelio )
Author(s) -
Song Xuerong,
Han Dong,
Liu Haokun,
Yang Yunxia,
Jin Junyan,
Zhu Xiaoming,
Xie Shouqi
Publication year - 2019
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.13981
Subject(s) - biology , carp , strain (injury) , postprandial , carbohydrate , glycogen , starch , carbohydrate metabolism , glycolysis , gluconeogenesis , biochemistry , endocrinology , metabolism , insulin , anatomy , fish <actinopterygii> , fishery
This experiment was conducted to study the effects of dietary carbohydrate on glucose metabolism in gibel carp ( Carassius gibelio ) as well to investigate if different clones had different responses to carbohydrate intake. Unselected Dongting strain (DT strain), selected gibel carp “CAS III” (A strain) and gibel carp “CAS V” (F strain) were fed with no corn starch diet (0C), 30% corn starch diet (30C) and 45% corn starch diet (45C) for 8 weeks. The results showed that selected F strain showed higher growth performance. F strain and A strain showed better control on postprandial glucose regulation by increasing plasma triglyceride, plasma cholesterol, liver and muscle glycogen contents and also enhancing glycolysis and restraining gluconeogenesis. DT strain had higher body lipid and lipid utilization. In conclusion, gibel carp could tolerate 45% dietary carbohydrate and F strain showed better growth by increasing glycolysis while decreasing glycogenesis.