TY - JOUR
AU1 - Marudhupandi, Thangapandi
AU2 - Dhayanithi, Nagarajan Balachandran
AU3 - Jeyaprakashsabari, Sridharan
AU4 - Deepa, Sugatha Dhas
AU5 - Ajith Kumar, Thipramalai Thangappan
AU6 - Sarkar, Uttam Kumar
AB - In vivo study was conducted to determine the role of insulin-like growth factors (IGF-II) related to dietary protein utilization. For this early juvenile stage of marine false clownfish Amphiprion ocellaris, 300 numbers of 20-day-old larvae (initial body weight of 18.2±0.027 mg/fish) were used as an experimental animal. Animals were fed for 12 weeks with different dietary protein levels (35, 40, 45, 50, and 55%), using Spirulina maxima as a major protein source. Proximate compositions and amino acid profile of the formulated diet were analyzed by the standard methods. Eventually, significant (P<0.05) mean, body weight gain, absolute growth rate, specific growth rate, and feed conversion ratio were obtained in the fishes fed with 50% of dietary protein, whereas, poor growth performance was noticed in 35% of the dietary protein level fed juveniles. The growth-responsible gene IGF-II expression studies showed the significant upregulation in the growth of the juveniles at 2.05±0.11 for 40%, 3.13±0.20 for 45%, 4.97±0.13 for 50%, and 4.33± 0.24 for 55%, which were higher than the control group 35%. The study concluded that 50% of dietary protein level is optimal for better growth indices in clownfish; A. ocellaris juveniles and IGF-II can be used as a potential marker gene to assess the growth indices in A. ocellaris.
TI - Insulin-like growth factor II, a marker gene for determining the optimum dietary protein level in clownfish Amphiprion ocellaris
JF - Fish Physiology and Biochemistry
DO - 10.1007/s10695-023-01189-2
DA - 2024-02-01
UR - https://www.deepdyve.com/lp/springer-journals/insulin-like-growth-factor-ii-a-marker-gene-for-determining-the-Le1ULJbGNo
SP - 171
EP - 182
VL - 50
IS - 1
DP - DeepDyve
ER -