Standardization of breeding and rearing of the endangered Indian catfish Clarias magur (Hamilton, 1822) for juvenile production
The walking catfish, Clarias magur, is one of India's most popular food fish because of its nutritional quality and taste. In recent times, more attention has been given to this species due to the alarmingly decreasing availability in natural water bodies. Breeding and seed rearing of this spec...
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Elsevier
2025-03-01
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| Series: | Aquaculture Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352513424006884 |
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| author | Kamal Sarma Bavithra R. Jaspreet Singh S.K. Ahirwal Ujjwal Kumar Tarkeshwar Kumar Maneesh Kumar Dubey |
| author_facet | Kamal Sarma Bavithra R. Jaspreet Singh S.K. Ahirwal Ujjwal Kumar Tarkeshwar Kumar Maneesh Kumar Dubey |
| author_sort | Kamal Sarma |
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| description | The walking catfish, Clarias magur, is one of India's most popular food fish because of its nutritional quality and taste. In recent times, more attention has been given to this species due to the alarmingly decreasing availability in natural water bodies. Breeding and seed rearing of this species are still bottlenecks to an uninterrupted seed supply. A study was initiated to standardize the breeding performance of this species using the WOVA-FH hormone. Four hormone doses were selected (0.5, 1.0, 1.5 and 2.0 ml/kg body weight of female), and results indicated that the total weight of stripped eggs and spawning fecundity were the highest (p < 0.05) when females were injected with 1.0 ml of WOVA-FH hormone per kg of body weight. In the rearing experiment, the weight gain of larvae obtained from fishes injected with different hormone doses did not differ significantly (p > 0.05). Average larval growth at the end of 30, 60, 90 and 120 days of rearing was 0.003 g, 0.085 g, 4.47 g, 11.77 g and 23.77 g, respectively. For juvenile production from the fingerlings of C. magur, different protein levels (20 %, 25 %, 30 %, 35 % and 40 %) of feed were prepared from locally available feed ingredients, and the growth and survival performance of C. magur under varying protein levels were recorded. Results indicated that C. magur required relatively higher protein feed (35 %) for better growth performance, and varying protein level has a direct impact on the growth, survival, mineral and proximate composition of C. magur. |
| format | Article |
| id | doaj-art-8ce814f8450d415c825d8d8013319590 |
| institution | Kabale University |
| issn | 2352-5134 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Aquaculture Reports |
| spelling | doaj-art-8ce814f8450d415c825d8d80133195902025-02-06T05:12:16ZengElsevierAquaculture Reports2352-51342025-03-0140102600Standardization of breeding and rearing of the endangered Indian catfish Clarias magur (Hamilton, 1822) for juvenile productionKamal Sarma0Bavithra R.1Jaspreet Singh2S.K. Ahirwal3Ujjwal Kumar4Tarkeshwar Kumar5Maneesh Kumar Dubey6Division of Livestock and Fisheries Management, ICAR Research Complex for Eastern Region, P.O. Bihar Veterinary College, ICAR Parisar road, Patna, Bihar 800014, IndiaDivision of Livestock and Fisheries Management, ICAR Research Complex for Eastern Region, P.O. Bihar Veterinary College, ICAR Parisar road, Patna, Bihar 800014, IndiaDivision of Livestock and Fisheries Management, ICAR Research Complex for Eastern Region, P.O. Bihar Veterinary College, ICAR Parisar road, Patna, Bihar 800014, India; Correspondence to: ICAR Research Complex for Eastern Region, P.O. Bihar Veterinary College, ICAR Parisar Road, Patna, Bihar 800014, India.Division of Livestock and Fisheries Management, ICAR Research Complex for Eastern Region, P.O. Bihar Veterinary College, ICAR Parisar road, Patna, Bihar 800014, IndiaDivision of Livestock and Fisheries Management, ICAR Research Complex for Eastern Region, P.O. Bihar Veterinary College, ICAR Parisar road, Patna, Bihar 800014, IndiaDivision of Livestock and Fisheries Management, ICAR Research Complex for Eastern Region, P.O. Bihar Veterinary College, ICAR Parisar road, Patna, Bihar 800014, IndiaCollege of Fisheries (Dr. Rajendra Prasad Central Agricultural University, Pusa), Dholi, Muzaffarpur, Bihar 843121, IndiaThe walking catfish, Clarias magur, is one of India's most popular food fish because of its nutritional quality and taste. In recent times, more attention has been given to this species due to the alarmingly decreasing availability in natural water bodies. Breeding and seed rearing of this species are still bottlenecks to an uninterrupted seed supply. A study was initiated to standardize the breeding performance of this species using the WOVA-FH hormone. Four hormone doses were selected (0.5, 1.0, 1.5 and 2.0 ml/kg body weight of female), and results indicated that the total weight of stripped eggs and spawning fecundity were the highest (p < 0.05) when females were injected with 1.0 ml of WOVA-FH hormone per kg of body weight. In the rearing experiment, the weight gain of larvae obtained from fishes injected with different hormone doses did not differ significantly (p > 0.05). Average larval growth at the end of 30, 60, 90 and 120 days of rearing was 0.003 g, 0.085 g, 4.47 g, 11.77 g and 23.77 g, respectively. For juvenile production from the fingerlings of C. magur, different protein levels (20 %, 25 %, 30 %, 35 % and 40 %) of feed were prepared from locally available feed ingredients, and the growth and survival performance of C. magur under varying protein levels were recorded. Results indicated that C. magur required relatively higher protein feed (35 %) for better growth performance, and varying protein level has a direct impact on the growth, survival, mineral and proximate composition of C. magur.http://www.sciencedirect.com/science/article/pii/S2352513424006884Clarias magurInduced-breedingWOVA-FHGrowth performanceSurvival rate |
| spellingShingle | Kamal Sarma Bavithra R. Jaspreet Singh S.K. Ahirwal Ujjwal Kumar Tarkeshwar Kumar Maneesh Kumar Dubey Standardization of breeding and rearing of the endangered Indian catfish Clarias magur (Hamilton, 1822) for juvenile production Aquaculture Reports Clarias magur Induced-breeding WOVA-FH Growth performance Survival rate |
| title | Standardization of breeding and rearing of the endangered Indian catfish Clarias magur (Hamilton, 1822) for juvenile production |
| title_full | Standardization of breeding and rearing of the endangered Indian catfish Clarias magur (Hamilton, 1822) for juvenile production |
| title_fullStr | Standardization of breeding and rearing of the endangered Indian catfish Clarias magur (Hamilton, 1822) for juvenile production |
| title_full_unstemmed | Standardization of breeding and rearing of the endangered Indian catfish Clarias magur (Hamilton, 1822) for juvenile production |
| title_short | Standardization of breeding and rearing of the endangered Indian catfish Clarias magur (Hamilton, 1822) for juvenile production |
| title_sort | standardization of breeding and rearing of the endangered indian catfish clarias magur hamilton 1822 for juvenile production |
| topic | Clarias magur Induced-breeding WOVA-FH Growth performance Survival rate |
| url | http://www.sciencedirect.com/science/article/pii/S2352513424006884 |
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