Open AccessEffect of substitution of dietary fishmeal by soya bean meal on different sizes of gibel carp ( Carassius auratus gibelio ): nutrient digestibility, growth performance, body composition and morphometry
Author(s) -
Liu H.,
Zhu X.,
Yang Y.,
Han D.,
Jin J.,
Xie S.
Publication year - 2016
Publication title -
aquaculture nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 79
eISSN - 1365-2095
pISSN - 1353-5773
DOI - 10.1111/anu.12239
Subject(s) - biology , carp , fish meal , broodstock , meal , zoology , composition (language) , dry matter , food science , common carp , soybean meal , nutrient , aquaculture , fish <actinopterygii> , fishery , cyprinus , ecology , linguistics , philosophy , raw material
Abstract Four 70‐day growth trials were performed to investigate the effects of substitution of dietary fishmeal ( FM ) by soya bean meal ( SBM ) in different sizes of gibel carp CASIII ( C arassius auratus gibelio ). The initial weights of fry, juvenile, 1‐year fish and broodstock of gibel carp were 0.8, 5.0, 62.7 and 135.6 g, respectively. In each trial, eight diets were formulated to be iso‐nitrogenous and iso‐energetic, and different levels of soy bean meal protein were used to replace fishmeal protein at 0%, 20%, 40%, 60%, 80% and 100%. Another diet containing all SBM protein and supplemented with crystalline amino acids was also tested. The results showed that apparent digestibility coefficients ( ADC s) of dry matter and energy decreased with SBM substitution while the ADC s of phosphorus increased. The ADC s of protein of high SBM substitution were higher than those of FM groups. Juveniles show lower ADC s than grown‐up fish. Dietary SBM substitution showed negative effects on survival, growth and feed utilization in gibel carp. One‐year fish and broodstock gibel carp have relatively higher tolerance to dietary SBM than fry and juveniles.