Abstract:
Labeo rohita is one of the most widely consumed freshwater carps in South Asia, known for its fast growth, economic importance, and nutritional richness. As a major aquaculture species, it plays a vital role in meeting regional protein demands, making the evaluation of its proximate composition under different environmental and biological conditions essential. The present study investigated the effects of habitat and body weight on the proximate composition of L. rohita. For this purpose, fish samples were collected from both farm an driver habitats and categorized into two weight groups (1-2 kg and >2 kg).Standard Association of Official Analytical Chemists (AOAC) procedures were followed: moisture and dry matter were determined by oven-drying, ash by muffle furnace incineration, crude protein by the Kjeldahl method, and crude fat by Soxhlet extraction. Results of the present study suggested that L. rohita with>2 kg body weight had significantly higher dry matter and moisture contents compared to smaller fish (1-2 kg). Farm-raised specimen’s exhibited significantly higher dry matter content, while river-raised fish consistently showed greater moisture levels. Ash content was significantly higher in riverine fish with >2 kg body weight compared to farm-raised fish of the same bodyweight. Protein content was markedly greater in riverine fish than farm-raised fish of same body weight, whereas protein levels were higher in smaller (1-2 kg)fish compared to larger (>2 kg) fish with the same habitat. In conclusion, the proximate composition of L. rohita was affected by both habitat and body weight. Riverine habitats promoted higher protein, ash, and moisture content, while farm environments favored greater dry matter accumulation. These findings highlighted that natural habitats improve the nutritional quality of L. rohita, whereas aquaculture conditions alter nutrient balance, particularly in terms of dry matter and fat deposition.
Page(s):
208-208
DOI:
DOI not available
Published:
Journal: 4th International Conference of Sciences “Revamped Scientific Outlook of 21st Century, 2025” , November 12,2025, Volume: 1, Issue: 1, Year: 2025
Keywords:
Soxhlet extraction
,
proximate analysis
,
Labeo rohita
,
habitat variation
,
Kjeldahl method
,
fish body weight
,
muscle composition
,
aquaculture nutrition