A Comparative Study on the Growth and Mortality of Rohu fish, Labeo rohita of the Halda River (Wild) and Induced Hatchery (Artificial) Sources

Authors

  • Md Manzoorul Kibria Halda River Research Laboratory, University of Chittagong, Chattogram-4331 Bangladesh. & Department of Zoology, University of Chittagong, Chattogram-4331 Bangladesh
  • Sabira Ahmed Sara Halda River Research Laboratory, University of Chittagong, Chattogram-4331 Bangladesh & Department of Zoology, University of Chittagong, Chattogram-4331 Bangladesh
  • AHM Shihar Newaj Halda River Research Laboratory, University of Chittagong, Chattogram-4331 Bangladesh & Department of Zoology, University of Chittagong, Chattogram-4331 Bangladesh
  • Md Kamrul Hasan Santo Halda River Research Laboratory, University of Chittagong, Chattogram-4331 Bangladesh & Department of Zoology, University of Chittagong, Chattogram-4331 Bangladesh
  • Chowdhury Kawsar Ibn Ansar Halda River Research Laboratory, University of Chittagong, Chattogram-4331 Bangladesh & Department of Zoology, University of Chittagong, Chattogram-4331 Bangladesh
  • Abdullah Al Asek Halda River Research Laboratory, University of Chittagong, Chattogram-4331 Bangladesh & Department of Zoology, University of Chittagong, Chattogram-4331 Bangladesh
  • Md Badruzzaman Suhag Department of Statistics, University of Chittagong, Chattogram-4331 Bangladesh
  • M A Habib Siam Halda River Research Laboratory, University of Chittagong, Chattogram-4331 Bangladesh & Department of Zoology, University of Chittagong, Chattogram-4331 Bangladesh
  • Mohammad Shamsil Arafeen Halda River Research Laboratory, University of Chittagong, Chattogram-4331 Bangladesh & Department of Zoology, University of Chittagong, Chattogram-4331 Bangladesh

DOI:

https://doi.org/10.3329/cujbs.v12i1.78245

Keywords:

Indian Major Carps (Rohu), Halda River strain, hatchery strain, growth rate, mortality rate

Abstract

The growth and mortality rates of Labeo rohitaom the Halda River strain and the hatchery strain were studied under identical water quality and environmental conditions to identify the better performer. 250 Rohu fish fries from the Halda River and the hatchery were reared for this experiment. The rearing trial was performed for 14 weeks in 12 m3 net cages, each with three replica sets in an earthen pond. Fishes were sampled weekly for measuring body weight and length.  The final mean weight was significantly higher in the Halda strain (57.46 ± 22.91 g) compared to the hatchery strain (24.20 ± 7.61 g) (p < 0.05), with weight gain in the Halda strain more than twice that of the hatchery strain. In most sampling stages, the growth rate of Labeo rohita was significantly higher (p < 0.05) in the Halda strain. The final mean length was also greater in the Halda strain (13.07 ± 1.63 cm) compared to the hatchery strain (10 ± 1.08 cm). Mortality rates were lower in the Halda strain (15.60%) than that of the hatchery strain (31.20%) over the 14 weeks. These findings suggest that the Halda strain significantly outperforms the hatchery strain in growth and survival under controlled conditions.

Chittagong Univ. J. B. Sci. Vol. 12 (1 & 2): 83-90, 2024

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Published

2024-12-15

How to Cite

Kibria, M. M., Sara , S. A., Newaj , A. S., Santo , M. K. H., Kawsar Ibn Ansar , C., Al Asek, A., Suhag, M. B., Siam, M. A. H., & Arafeen, M. S. (2024). A Comparative Study on the Growth and Mortality of Rohu fish, Labeo rohita of the Halda River (Wild) and Induced Hatchery (Artificial) Sources. Chittagong University Journal of Biological Sciences, 12(1), 83–90. https://doi.org/10.3329/cujbs.v12i1.78245

Issue

Vol. 12 No. 1-2 (2024)

Section

Articles