Cattla cattla (Carp) is found in Northern India, Pakistan, Bangladesh,
and Burma. Five hybrids have been produced. Its total length is 950 mm
and total weight is 18.5 kg. The spawning season of C. catla in Gujrat
is between June to September. The Present work aims at the determination
of total lipid in livers of commercially important major carp. Total
lipid profile in female C. catla was measured to study variations from
immature to mature stage. Variance between hepatosomatic index (HSI) and
gonadosomatic (GSI) index and total body weight with respect to total
lipid in liver is also studied. These variations were studied in
relation with environmental parameters. Seasonal variations in the level
of lipid in fish are related maily to the reproductive cycle. They
accumulate large lipid reserves prior to gonadal development. In general
fatty acids are mobilized from the lipid reserves of fish during
gonadogenesis and transferred via the serum to liver where they are
assembled into the lipoprotein, vitellogenin. The total lipid
(phospholipids, cholesterol and triglyceride) can be catabolized to
provide metabolic energy for egg lipoprotein synthesis.