TITLE:
The Effects of Growth Performance and Organosomatic Indices of Atlantic Salmon Juvenile by Using Different Carbohydrate-to-Lipid Ratios in Feeds
AUTHORS:
Jinghui Li, Lin Ma, Zhenyan Cheng, Dongqing Bai, Xiuting Qiao, Jinhui Sun
KEYWORDS:
Atlantic Salmon, Carbohydrate, Lipid, Growth Performance, Organosomatic Indices
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.3 No.4C,
December
17,
2015
ABSTRACT:
The effect of different
carbohydrate-to-lipid ratios in feeds on the growth performance and organosomatic
indices of Atlantic salmon, Salmon salar, was determined in this experiment.
Four iso- energetic feeds were manufactured with increasing carbohydrate level
(18%, 21%, 14%, 26%). Lipid level was decreasing from 14% to 11% for each diet
for energetic balance. Fish were reared in triplicate tanks for each diet
treatment for 49 days. The diet which contained 26% carbohydrate and 11% lipid
provided the highest specific growth rate (SGR = 0.66% ± 0.04% per day) to the
fish. However, the feed efficiency (FER) ranked from 0.71 to 0.91 had no significant
differences between diets. Similarly, the values of condition index (K),
relative gut length (RGL) and hepatosomatic index (HSI) had no significant
differences between groups. The relationship between liver and carcass weight
showed that with the increasing of fish carcass weight, the liver weight increased.
According to this experiment, it suggests that based on an optimum level of
carbohydrate in diet, the juvenile salmon has a better growth fed by a diet
with a higher carbohydrate-to-lipid ratio.