Effects of Stocking Densities on Growth and Production Performance of Mystus cavasius in Bottom Clean Aquaculture System
ABSTRACT Optimizing the stocking density in bottom clean aquaculture is essential for promoting fish growth, economic sustainability and enhancing the general well‐being of fish. Three stocking densities (low, medium and high) were tested in a bottom clean aquaculture system to evaluate the growth e...
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| Format: | Article |
| Language: | English |
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Wiley
2025-04-01
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| Series: | Aquaculture, Fish and Fisheries |
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| Online Access: | https://doi.org/10.1002/aff2.70063 |
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| author | Md. Rabiul Awal A. K. M. Saiful Islam Md. Moshiur Rahman Asma Jaman Md. Harunor Rashid Anuradha Bhadra |
| author_facet | Md. Rabiul Awal A. K. M. Saiful Islam Md. Moshiur Rahman Asma Jaman Md. Harunor Rashid Anuradha Bhadra |
| author_sort | Md. Rabiul Awal |
| collection | DOAJ |
| description | ABSTRACT Optimizing the stocking density in bottom clean aquaculture is essential for promoting fish growth, economic sustainability and enhancing the general well‐being of fish. Three stocking densities (low, medium and high) were tested in a bottom clean aquaculture system to evaluate the growth efficiency, nutritional values, blood parameters, and cost‐effectiveness of Mystus cavasius. Fish stocking rates in tanks were 666 (low density), 1000 (medium density) and 1330 fish/m3 (high density) with an initial fish weight of 0.49 ± 0.19 g, 0.48 ± 0.18 g and 0.50 ± 0.20 g, respectively. The results suggested that the water quality assessment was within acceptable limits for fish growth. The study revealed significantly higher (p < 0.05) final weight, weight gain, percentage weight gain, average daily weight gain, specific growth rate, survival rate and feed conversion ratio (FCR) in the low‐density treatment. However, the total fish yield and profit were significantly higher in the high‐density treatment compared to the medium‐density and low‐density treatments, resulting in a higher net profit. Nutrient values were similar across all treatments. The length–weight relationship analysis indicated a negative allometric growth (b < 3) with no significant variation (p > 0.05) among treatments. The blood glucose and haemoglobin levels ranged from 129.50 to 157.75 mg/dL and 8.40 to 8.80 g/dL, respectively, among treatments indicating optimum levels. This study suggests that the ideal density for M. cavasius in tank‐based bottom clean aquaculture is 1330 fish/m3. However, further research is necessary to investigate higher stocking densities for optimal production. |
| format | Article |
| id | doaj-art-4c65bbd7e7ab42eaa00bd22d0da835d0 |
| institution | OA Journals |
| issn | 2693-8847 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Aquaculture, Fish and Fisheries |
| spelling | doaj-art-4c65bbd7e7ab42eaa00bd22d0da835d02025-08-20T02:19:10ZengWileyAquaculture, Fish and Fisheries2693-88472025-04-0152n/an/a10.1002/aff2.70063Effects of Stocking Densities on Growth and Production Performance of Mystus cavasius in Bottom Clean Aquaculture SystemMd. Rabiul Awal0A. K. M. Saiful Islam1Md. Moshiur Rahman2Asma Jaman3Md. Harunor Rashid4Anuradha Bhadra5Bangladesh Fisheries Research Institute Freshwater Station Mymensingh BangladeshBangladesh Fisheries Research Institute Freshwater Station Mymensingh BangladeshBangladesh Fisheries Research Institute Freshwater Station Mymensingh BangladeshBangladesh Fisheries Research Institute Mymensingh BangladeshBangladesh Fisheries Research Institute Freshwater Station Mymensingh BangladeshBangladesh Fisheries Research Institute Mymensingh BangladeshABSTRACT Optimizing the stocking density in bottom clean aquaculture is essential for promoting fish growth, economic sustainability and enhancing the general well‐being of fish. Three stocking densities (low, medium and high) were tested in a bottom clean aquaculture system to evaluate the growth efficiency, nutritional values, blood parameters, and cost‐effectiveness of Mystus cavasius. Fish stocking rates in tanks were 666 (low density), 1000 (medium density) and 1330 fish/m3 (high density) with an initial fish weight of 0.49 ± 0.19 g, 0.48 ± 0.18 g and 0.50 ± 0.20 g, respectively. The results suggested that the water quality assessment was within acceptable limits for fish growth. The study revealed significantly higher (p < 0.05) final weight, weight gain, percentage weight gain, average daily weight gain, specific growth rate, survival rate and feed conversion ratio (FCR) in the low‐density treatment. However, the total fish yield and profit were significantly higher in the high‐density treatment compared to the medium‐density and low‐density treatments, resulting in a higher net profit. Nutrient values were similar across all treatments. The length–weight relationship analysis indicated a negative allometric growth (b < 3) with no significant variation (p > 0.05) among treatments. The blood glucose and haemoglobin levels ranged from 129.50 to 157.75 mg/dL and 8.40 to 8.80 g/dL, respectively, among treatments indicating optimum levels. This study suggests that the ideal density for M. cavasius in tank‐based bottom clean aquaculture is 1330 fish/m3. However, further research is necessary to investigate higher stocking densities for optimal production.https://doi.org/10.1002/aff2.70063bottom clean aquaculturecost–benefit ratioM. cavasiusproductionstocking density |
| spellingShingle | Md. Rabiul Awal A. K. M. Saiful Islam Md. Moshiur Rahman Asma Jaman Md. Harunor Rashid Anuradha Bhadra Effects of Stocking Densities on Growth and Production Performance of Mystus cavasius in Bottom Clean Aquaculture System Aquaculture, Fish and Fisheries bottom clean aquaculture cost–benefit ratio M. cavasius production stocking density |
| title | Effects of Stocking Densities on Growth and Production Performance of Mystus cavasius in Bottom Clean Aquaculture System |
| title_full | Effects of Stocking Densities on Growth and Production Performance of Mystus cavasius in Bottom Clean Aquaculture System |
| title_fullStr | Effects of Stocking Densities on Growth and Production Performance of Mystus cavasius in Bottom Clean Aquaculture System |
| title_full_unstemmed | Effects of Stocking Densities on Growth and Production Performance of Mystus cavasius in Bottom Clean Aquaculture System |
| title_short | Effects of Stocking Densities on Growth and Production Performance of Mystus cavasius in Bottom Clean Aquaculture System |
| title_sort | effects of stocking densities on growth and production performance of mystus cavasius in bottom clean aquaculture system |
| topic | bottom clean aquaculture cost–benefit ratio M. cavasius production stocking density |
| url | https://doi.org/10.1002/aff2.70063 |
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