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Phenotype of the First Generation of Koi Hibridization
Corresponding Author(s) : K. Sumantadinata
Jurnal Akuakultur Indonesia,
Vol. 1 No. 3 (2002): Jurnal Akuakultur Indonesia
Abstract
ABSTRACT
This experiment was conducted to study phenotype of F1 koi that were obtained from hybridization. Females koi that was used for this experiment were white-red koi, red-black koi, and white-black koi; whereas males used white-red koi, red-black koi, white-black koi and white-red-black. Spawning for hybridization was done using hormonal stimulation with 0.5 ml ovaprim/kg body weight, and fertilization were artificially performed. Analysis on body coloration was carried out at three months old fish. Normal F1 of white-red koi as well red-black koi produced three kind of koi, while white-black koi produced seven kind of koi, i.e. white koi, red koi, black koi, white-red koi, white-black koi, red-black koi and white-red-black koi. Hybridization of those koi produced seven kind of koi such as normal F1 of white-black koi.
Key word : Koi fish, phenotype, hybridization, first generation (F1)
ABSTRAK
Studi tentang genotipe keturunan pertama ikan koi hasil hibridisasi telah dilakukan di Laboratorium Pengembangbiakan dan Genetika Ikan, Jurusan Budidaya Perairan, Fakultas Perikanan dan Ilmu Kelautan IPB. Ikan koi betina yang dipakai adalah ikan koi putih-merah, merah-hitam dan putih-hitam, sedangkan jantannya adalah putih-merah, merah-hitam, putih-hitam dan putih-merah-hitam. Ikan-ikan tersebut diperoleh dari teknik ginogenesis. Pemijahan untuk persilangan antar jenis ikan koi dilakukan dengan rangsangan hormonal ovaprim 0,5 ml/kg, dan pembuahan dilakukan secara buatan. Analisis warna pada ikan dilakukan setelah ikan berumur 3 bulan. Hasil penelitian menunjukkan bahwa perkawinan normal koi putih-merah maupun merah hitam masing-masing menghasilkan tiga tipe warna (dua warna polos dan satu warna kombinasi) sedangkan koi putih-hitam menghasilkan tujuh tipe warna. Perkawinan silang antara ketiga ikan tersebut menghasilkan tujuh warna yang sama dengan keturunan normal merah-hitam, yaitu putih, merah, hitam, putih-merah, putih-hitam, merah-hitam dan putih-merah-hitam.
Kata kunci : Ikan koi, fenotip, hibridisasi, turunan pertama (F1)
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