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Stream/Area:
-
Subject:
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Paper ID:
10.55041/IJSREM.ISTCESD017
Volume:
10 |
9 |
Sep 2026
Pages:
1-4
Publication Frequency:
Monthly (12 issues per year)
License:International Journal of Scientific Research in Engineering and Management follows the Creative Commons Attribution 4.0 (CC BY 4.0) License, allowing free use and distribution with proper attribution.
Department of Zoology,
Mahtma Gandhi Mahavidhyalaya, Ahmedpur, Latur (MS)
Department of Microbiology,
Late Baburao Patil Arts and Science College, Hingoli (MS)
Department of Botany,
Late Baburao Patil Arts and Science College, Hingoli (MS)
Department of Zoology,
Mahtma Gandhi Mahavidhyalaya, Ahmedpur, Latur (MS)
Biofloc Technology (BFT) presents a zero-water-exchange aquaculture solution suitable for semi-arid regions such as Parbhani, Maharashtra. This study evaluated the effect of three stocking densities on the growth, feed efficiency, and survival of Catla catla fingerlings cultured in circular outdoor BFT tanks (10,000 L volume) over 90 days. Fingerlings (15.20 ± 0.35 g) were stocked at three treatment densities: Treatment 1 (T1: 30 fish/m3), Treatment 2 (T2: 50 fish/m3), and Treatment 3 (T3: 70 fish/m3), in triplicate. Water quality parameters (DO, pH, TAN, Nitrite, and Floc Volume) remained within safe physiological ranges, maintained via jaggery-based carbon addition (C:N ratio = 15:1). Results indicated that T2 achieved optimal balance, displaying a final mean weight of 118.45 ± 2.12 g, a Specific Growth Rate (SGR) of 2.28 ± 0.04 % day-1, a Feed Conversion Ratio (FCR) of 1.24 ± 0.03, and a survival rate of 92.6%. Although T1 yielded slightly higher individual weights (126.30 ± 1.80 g), total biomass yield per unit volume was highest in T2 (5.48 kg/m3). Conversely, T3 exhibited significantly suppressed growth (94.10 ± 3.10 g) and lower survival (81.4%) due to spatial stress and elevated total suspended solids (TSS). Thus, a stocking density of 50 fish/m3 is recommended for commercial Catla catla biofloc culture in the Marathwada region.
KEYWORDS
This study demonstrates that stocking density significantly influences the culture success of Catla catla in biofloc systems under local conditions in Parbhani, Maharashtra. While lower stocking densities (30 fish/m3) yield maximum individual growth, a stocking density of 50 fish/m3 (T2) delivers the optimal economic combination of individual growth rate, feed conversion efficiency (1.24), survival (92.6 %), and maximum system yield (5.48 kg/m3). Exceeding 50 fish/m3 impairs water stability, survival, and growth, making it economically unviable for local farmers.
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Publication Date
9/28/2026
Peer Review Type
Double-Blind Peer Review
Review Rounds: 2
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