TY - JOUR
T1 - Dietary protein requirements for juvenile hybrid culter (Culter alburnus ♀ × ancherythroculter nigrocauda ♂)
AU - Chang, Jia Zhi
AU - Yu, Deng Hang
AU - Chen, Jian
AU - Dong, Gui Fang
N1 - Publisher Copyright:
© 2018, Israeli Journal of Aquaculture - Bamidgeh. All rights reserved.
PY - 2018
Y1 - 2018
N2 - This study was conducted to evaluate the effects of dietary protein levels on growth performance and digestive enzyme activities of juvenile hybrid culter (Culter alburnus ♀× Ancherythroculter nigrocauda ♂). Five isolipidic experimental diets were formulated to contain graded levels of protein ranging from 29.54-48.98%. These were fed to triplicate groups of fish (11.44 ± 0.7 g/fish) for 8 weeks. Results from the feeding trial indicated that growth performance, body composition, and digestive enzyme activities of the fish were significantly different (P<0.05) between the groups. Growth performance had a generally increasing trend with increasing dietary protein levels. Weight gain (160.76%) and specific growth rate (1.71) of fish in the group where feed contained 40.07% dietary protein was significantly higher than the group where feed contained 33.58% dietary protein (118.76% and 1.40, respectively), but there was no significant difference compared with 45.04% dietary protein. Based on the statistical significance, our results indicated that the dietary protein level should not be less than 40% for juvenile hybrid culter.
AB - This study was conducted to evaluate the effects of dietary protein levels on growth performance and digestive enzyme activities of juvenile hybrid culter (Culter alburnus ♀× Ancherythroculter nigrocauda ♂). Five isolipidic experimental diets were formulated to contain graded levels of protein ranging from 29.54-48.98%. These were fed to triplicate groups of fish (11.44 ± 0.7 g/fish) for 8 weeks. Results from the feeding trial indicated that growth performance, body composition, and digestive enzyme activities of the fish were significantly different (P<0.05) between the groups. Growth performance had a generally increasing trend with increasing dietary protein levels. Weight gain (160.76%) and specific growth rate (1.71) of fish in the group where feed contained 40.07% dietary protein was significantly higher than the group where feed contained 33.58% dietary protein (118.76% and 1.40, respectively), but there was no significant difference compared with 45.04% dietary protein. Based on the statistical significance, our results indicated that the dietary protein level should not be less than 40% for juvenile hybrid culter.
KW - Dietary protein level
KW - Digestive enzyme activities
KW - Growth performance
KW - Juvenile hybrid culter
UR - http://www.scopus.com/inward/record.url?scp=85082848333&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85082848333
SN - 0792-156X
VL - 70
JO - Israeli Journal of Aquaculture - Bamidgeh
JF - Israeli Journal of Aquaculture - Bamidgeh
M1 - IJA_70.2018.1484
ER -