Vol. 12, Issue 7 (2023)

Author(s):
Ningthoukhongjam Soranganba

Abstract:
The present investigation was taken up to determine the seasonal change in low density lipoproteins (LDL) in blood plasma, muscle, gonadal and hepatic tissues in 1+ and 2+ year’s age groups of Amur common carp, Cyprinus carpio haematopterus in Tarai region of Uttarakhand with physiological changes. Seasonal observations of water quality parameters of the trial ponds were carried out. Four different seasons – summer (July), autumn (October), winter (January) and spring (March) were chosen for sampling. Positive correlation of serum and gonadal LDL levels with GSI in 1+ and 2+ year’s age groups were observed and might be indicative of its active role in gonadal development. Significant effect of serum and gonadal level with age and season F (4, 98) = 293.1, p<0.05, ɳ² = 0.938; F (3, 98) = 353.252, p<0.05, ɳ² = 0.931 and F (3, 69) = 224.371, p<0.05, ɳ² = 0.926; F (3, 69) = 257.825, p<0.05, ɳ² = 0.935 respectively. Based on the present investigation, it can be inferred that seasonal changes in LDL level certainly plays a significant role and its availability in any form as food intake can be instrumental in reproductive success of Amur common carp, Cyprinus carpio haematopterus.