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Background <p>This study investigated the growth response and some spawning indices of <i>Oreochromis niloticus</i> containing foreign fish DNA. Various concentrations of DNA: 0 (control), 10, 20, 30, and 40&#xa0;µg/µl extracted from <i>Heterotis niloticus</i> traditionally. The DNA was manually transferred into the skeletal muscles of <i>Oreochromis niloticus</i> fingerlings (24.30–24.40&#xa0;g weight and 4.0–4.50&#xa0;cm length) using a micro-syringe and needle. The fish were reared for 90&#xa0;days in a concrete pond (2 × 2 × 1&#xa0;m<sup>2</sup> deep) partitioned into 4 (1 m<sup>2</sup> each) in triplicate arrangements in a completely randomized design manner.</p> Results <p>The result showed an increase in growth with the increase in DNA concentration. A better final weight (399.17&#xa0;g) was observed in fingerlings that received 40&#xa0;µg/µl followed by 20, 30, and 10&#xa0;µg/µl (323.67 ± 21.60, 306.87 ± 4.64 and 296.67 ± 10.6) respectively. However, the feed conversion ratio was better in the control group. The survival rate was higher in <i>O. niloticus</i> injected with 40&#xa0;µg/µl DNA compared to the control fish that did not receive any DNA.</p> Conclusion <p>The injected <i>H. niloticus</i> DNA was able to influence growth in <i>O. niloticus.</i> However, it could not enhance spawning indices in <i>O. niloticus</i>. The study revealed the possibility of enhancing the growth of <i>Oreochromis niloticus</i> via injection of <i>Heterotis niloticus</i> DNA.</p>

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Growth response and some spawning indices of Nile Tilapia (Oreochromis niloticus, Linnaeus 1758) containing piscine DNA

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月7日

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  • Thami Kusa,
  • Mohammed Yakubu Diyaware,
  • Sa’adu Bala Suleiman,
  • Mohammed Aliyu,
  • Zanna Barde Mohammed,
  • Abdulhakeem Biola Ajibike,
  • Omoniyi Michael Popoola,
  • Mohammed Yakubu Haruna

摘要

Background

This study investigated the growth response and some spawning indices of Oreochromis niloticus containing foreign fish DNA. Various concentrations of DNA: 0 (control), 10, 20, 30, and 40 µg/µl extracted from Heterotis niloticus traditionally. The DNA was manually transferred into the skeletal muscles of Oreochromis niloticus fingerlings (24.30–24.40 g weight and 4.0–4.50 cm length) using a micro-syringe and needle. The fish were reared for 90 days in a concrete pond (2 × 2 × 1 m2 deep) partitioned into 4 (1 m2 each) in triplicate arrangements in a completely randomized design manner.

Results

The result showed an increase in growth with the increase in DNA concentration. A better final weight (399.17 g) was observed in fingerlings that received 40 µg/µl followed by 20, 30, and 10 µg/µl (323.67 ± 21.60, 306.87 ± 4.64 and 296.67 ± 10.6) respectively. However, the feed conversion ratio was better in the control group. The survival rate was higher in O. niloticus injected with 40 µg/µl DNA compared to the control fish that did not receive any DNA.

Conclusion

The injected H. niloticus DNA was able to influence growth in O. niloticus. However, it could not enhance spawning indices in O. niloticus. The study revealed the possibility of enhancing the growth of Oreochromis niloticus via injection of Heterotis niloticus DNA.