Vol. 12, Issue 6 (2023)

Author(s):
Ningthoukhongjam Soranganba

Abstract:
The present study was taken up to assess the role of some biochemical indices (TP, CHO, TG, HDL, LDL, VLDL, PHO) from blood serum of 1+ and 2+ year’s age groups Amur common carp, Cyprinus carpio haematopterus in relation to physiological indices (like GSI, HSI) and reproductive traits seasonally. The study showed that 2+ year’s age group have higher TP than 1+ year’s age group correlating with GSI and indicating better higher reproductive potential and protein requirement. Similarly, CHO, TG, HDL, LDL, VLDL and PHO were observed with higher concentration in 2+ than 1+ age groups. Higher levels of GSI in 2+ year’s age group corresponding to CHO indicates its mobilisation for gonadal development and other biosynthesis. High TG recorded in male can be related to low level energy mobilisation in male gonadal development as compared to female counterparts. Elevated major lipid class HDL observed in 2+ year’s age group indicates its role in reproductive physiology and vice versa for LDL showing positive correlation with GSI. High concentration of VLDL indicates the transport of endogenous lipids towards gonadal development coinciding with peak spawning season and higher level in female correlates with female vittelogenesis. PHO plays an important role in cellular integrity and as energy reserves which in evident from the higher level observed during the study. The above biochemical obervations corresponding with season and spawning period indicates the imortace of these biomolecules and lipid class in gonadal development of Amur common carp.