Effect of rearing density on reproduction and embryogenesis of zebrafish Danio rerio (Hamilton, 1922)

Authors

  • Md Golam Rabbane Department of Fisheries, Faculty of Biological Sciences, University of Dhaka, Dhaka-1000, Bangladesh
  • Md Mizanur Rahman Department of Fisheries, Faculty of Biological Sciences, University of Dhaka, Dhaka-1000, Bangladesh
  • Md Alamgir Kabir Department of Fisheries, Faculty of Biological Sciences, University of Dhaka, Dhaka-1000, Bangladesh
  • Md Hasan Faruque Department of Fisheries, Faculty of Biological Sciences, University of Dhaka, Dhaka-1000, Bangladesh

DOI:

https://doi.org/10.3329/dujbs.v26i1.46352

Keywords:

Rearing density, Reproduction, Embryogenesis, Zebrafish

Abstract

Effect of rearing density (5, 15, 25, 35 and 45 fish/l2) on reproductive performances such as spawning success, fertilization rate, hatching rate and embryogenesis in terms of per cent survival rate of embryos at cleavage, gastrula, segmentation, pharyngula and hatching were evaluated. Survival, hatching, fertilization rate and per cent survivability of embryos did not differ significantly between the treatments 1, 2 and 3, but showed significant difference (p < 0.05) between 4 and 5. Treatment three (25 fish/l2) had five-folds higher number of successful progeny than treatment one. Results suggest that 25 fish/l2 can be used as optimum rearing density.

Dhaka Univ. J. Biol. Sci. 26(1): 77-82, 2017 (January)

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Published

2017-01-20

How to Cite

Rabbane, M. G., Rahman, M. M., Kabir, M. A., & Faruque, M. H. (2017). Effect of rearing density on reproduction and embryogenesis of zebrafish Danio rerio (Hamilton, 1922). Dhaka University Journal of Biological Sciences, 26(1), 77–82. https://doi.org/10.3329/dujbs.v26i1.46352

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Articles