Effect of Water Quality Parameters on Biochemical Composition of Labeo rohita (Ham.)
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Date
2020
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Punjab Agricultural University, Ludhiana
Abstract
The present study, “Effect of Water Quality Parameters on Biochemical Composition of
Labeo rohita (Ham.)” been made to evaluate seasonal changes in biochemical composition of
different body regions (head, trunk and tail) of Labeo rohita (Ham.) raised in Fish Ponds (one
in Mansa(P1) and other in Ludhiana (P2) (Punjab)) and their relationship with water quality
of Ponds. Water quality parameters (colour, temperature, Sechhi Disc Transparency, pH,
dissolved oxygen, total alkalinity, total hardness, salinity, dissolved phosphorus and nitrates)
showed variations with seasons (summer, monsoon, and winter) in both Ponds. Phytoplankton
in P1 belonged to 32 genera, whereas in P2 to 27 genera of 4 families (Chlorophyceae,
Cyanophyceae, Bacillariophyceae and Euglenophyceae). Zooplankton in P1 belongs to 18
genera and in P2 to 15 genera of the 4 groups (Protozoa, Rotifera, Cladocera, and Copeoda).
The biochemical composition of the fish (moisture, crude protein, crude lipid, carbohydrates,
ash, and gross energy) varied with seasons in different body regions of fish. Moisture was
highest in tail during winter but lowest in head during summer in fish from both Ponds. Crude
protein, crude lipid, carbohydrates, ash and gross energy were found maximum during
summer season. They all were found maximum in head region except crude protein, which
was maximum in the trunk region in all the seasons. The correlation confirmed that Total
dissolved phosphorus had major effect on crude protein, carbohydrate and gross energy of
Labeo rohita (Ham.). The water quality parameters had significant effect on biochemical
composition of Labeo rohita (Ham.) in both Ponds.
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Citation
Ramanjit Kaur (2020). Effect of Water Quality Parameters on Biochemical Composition of Labeo rohita (Ham.) (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.