PERBAIKAN MUTU GENETIK IKAN MAS RAJADANU MELALUI SELEKSI

  • Radona D
  • Asih S
  • Subagja J
  • et al.
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Abstract

Ikan mas rajadanu mempunyai karakter cepat tumbuh dan tahan penyakit. Selective breeding merupakan salah satu upaya dalam peningkatan mutu induk dan benih. Penelitian ini bertujuan untuk melihat respons pertumbuhan dan nilai heritabilitas pada ikan mas rajadanu (F-3) yang berpotensi tumbuh lebih cepat dibandingkan dengan generasi sebelumnya (F-2). Pembentukan ikan mas rajadanu F-3 dilakukan dengan metode hierarki (satu jantan membuahi empat betina). Pengujian respons seleksi dilakukan terhadap benih hasil pemijahan induk ikan mas rajadanu F-2 yang terseleksi. Terbentuk sebanyak 25 famili dan dipelihara secara terpisah selama 160 hari pada kolam beton ukuran 1,5 m x 1 m dengan ketinggian air 60 cm. Kolam digunakan sebanyak 25 buah. Respons seleksi dihitung dengan melihat nilai rata-rata pertumbuhan F-3 dibandingkan dengan F-2. Hasil penelitian menunjukan performa ikan mas rajadanu F-3 memiliki nilai respons seleksi (14,20 g); nilai heritabilitas (0,60); pertambahan bobot (41,63 ± 10,51 g); dan pertambahan panjang (9,86 ± 1,43 cm). Rajadanu carp strain have character of fast growing and disease resistant. Selective breeding is one of an attempts can be appllied to improve the broodstock and seed quality genetically. This research was aims to see response of growth and heritability value of F-3 on carp rajadanu that potentially grow faster compared with previous generation (F-2). The F-3 carp rajadanu was designated with hierarchy method (one males fertilize four female). The F-3 was derived from F-2 and formed 25 families. Those families were maintained for 160 days on pond with size of 1.5 m x 1 m and water depth of 60 cm. The response selection was calculated by choosing the best individuals of each based on ADG (averange daily growth). The research result show that the values of response selection was 14.20 g, heritability value of 0.60, weight, and length gain were 41.63 g and 9.86 cm, respectively.

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APA

Radona, D., Asih, S., Subagja, J., & Gustiano, R. (2016). PERBAIKAN MUTU GENETIK IKAN MAS RAJADANU MELALUI SELEKSI. Jurnal Riset Akuakultur, 11(1), 15. https://doi.org/10.15578/jra.11.1.2016.15-21

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