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      Ekspresi fenotip warna ikan denisoni barb strain golden (Sahyadria denisonii) pada pemeliharaan berkelompok

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      Date
      2026
      Jenis/Type
      Skripsi
      Subtype
      Undergraduate Theses
      Author
      FAHRUDIN, AHMAD
      Soelistyowati, Dinar Tri
      Arfah, Harton
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      Abstract
      AHMAD FAHRUDIN. Ekspresi fenotip warna ikan Denisoni Barb strain golden (Sahyadria denisonii) pada pemeliharaan berkelompok. Di bimbing oleh DINAR TRI SOELISTYOWATI dan HARTON ARFAH. Ikan Denisoni Barb (Sahyadria denisonii) termasuk dalam famili Cyprinidae yang bernilai ekonomi merupakan ikan hias introduksi dari ghat India. Ikan Denisoni varian golden memiliki keunikan tubuhnya berwarna kuning emas dengan sisik yang berkilau cerah pada bagian garis lateral. Ekspresi fenotip golden dipengaruhi oleh padat tebar yang optimal sesuai dengan sifat alaminya berkoloni. Penelitian ini bertujuan mengevaluasi ekspresi fenotip warna golden serta keragaman karakter morfometrik dan kondisi fisiologis ikan pada sistem pemeliharaan soliter dan berkelompok. Penelitian dilakukan selama 90 hari dengan rancangan acak lengkap tiga perlakuan meliputi sistem pemeliharaan soliter (P1) dan berkelompok terdiri dari 3 ekor (P2) dan 5 ekor (P3) menggunakan akuarium berdimensi 45x25x35 cm serta ketinggian air 30 cm. Hasil penelitian menunjukkan bahwa pemeliharaan secara soliter maupun berkelompok tidak berdampak terhadap penurunan kondisi fisiologis ikan (FK>1), namun pemeliharaan secara soliter menghasilkan keragaan bobot tubuh dan tinggi badan yang lebih besar serta peningkatan variabilitas ekspresi warna golden pada bagian ekor (46,25%). Sebaliknya, sistem pemeliharaan berkelompok menghasilkan keragaan morfometrik dan ekspresi warna golden yang lebih seragam (<20%). Kualitas air selama menunjukkan kisaran suhu 26-28,16°C dan pH 7,05-7,28. Kata kunci: Sahyadria denisonii, fenotip warna, morfometrik,
       
      AHMAD FAHRUDIN. Color phenotype expression of golden strain Denisoni barb (Sahyadria denisonii) under group rearing conditions. Supervised by DINAR TRI SOELISTYOWATI and HARTON ARFAH. Denisoni Barb (Sahyadria denisonii) belongs to the family Cyprinidae and is an economically valuable ornamental fish introduced from the Western Ghats of India. The golden variant of Denisoni Barb is characterized by a distinctive golden-yellow body coloration with bright, shiny scales along the lateral line. The expression of the golden phenotype may be influenced by optimal stocking density, in accordance with its natural shoaling behavior. This study aimed to evaluate the expression of the golden color phenotype, as well as the variation in morphometric characters and physiological condition of fish reared under solitary and group-rearing systems. The study was conducted for 90 days using a completely randomized design with three treatments, namely solitary rearing (P1) and group rearing consisting of 3 fish (P2) and 5 fish (P3), using aquaria measuring 45 × 25 × 35 cm with a water depth of 30 cm. The results showed that both solitary and group rearing did not negatively affect the physiological condition of the fish (CF > 1). However, solitary rearing resulted in greater body weight and body height performance, as well as increased variability in golden color expression on the caudal region (46,25%). In contrast, group-rearing systems produced more uniform morphometric performance and golden color expression (<20%). Water quality during the rearing period remained within a temperature range of 26-28.16 °C and a pH range of 7.05-7.28. Keywords: Sahyadria denisonii, color phenotype, morphometrics
       
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      http://repository.ipb.ac.id/handle/123456789/174968
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