Induced spawning and larval rearing of cyprinus carpio on three different feeds

48 adet Cyprinus carpio (W = 963±9,5 g; L= 33,60±2,6 cm), kontrol (n=24) ve deneme grubu (n=24) olmak üzere iki gruba ayrılmıştır. Kontrol grubu doğal olarak yumurtlarken, deneme grubunun hormon kullanılarak yumurtlaması sağlanmıştır. Sonuçlar, anaç balığın vücut ağırlığında, gonadosomatik indeksinde (GSI) ve yumurta verimliliğinde pozitif korelasyon olduğunu göstermiştir. Kontrolle kıyaslandığında dışarıdan etki ile yumurtlaması sağlanan balıklarda yumurta verimliliğinin (Psığır eti ekstraktı>açık su>yumurta sarısı şeklinde olduğu gözlenmiştir. En yüksek yaşama oranı %57 ile karaciğer ekstraktı ile beslenen grupta olurken, en düşük yaşama oranı %25 ile birikinti suda olduğu kaydedilmiştir.

Üç farklı yemlemede cyprinus carpio’nun üreme ve larval yetiştiriciliği

A total 48 Cyprinus carpio breeders (W = 963±9.5 g; L= 33.60±2.6 cm) were divided into two groups as control (n=24) and experimental (n=24). Control group spawned naturally while experimental group were subjected to induce spawning using ova prim. Results showed positive correlation in breeder&#8217;s body weight, gonado somatic index (GSI) and fecundity. Significantly high (P<0.01) fecundity and % hatch is observed in induced spawning as compared to control (open water). In an other experiment 84,000 C. carpio larvae after alluvial stage were grown on 100% body weight spread in two feeds on powdered egg yolk, beef extract, liver extract and live food for 35 days. Stocking density was kept 7,000 larvae per tank in triplicate for each feed. Growth was observed as beef liver extract > beef extract > open water > egg yolk. Maximum survival (57%) was noted in liver extract feed and minimum (25%) in pond water.

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Turkish Journal of Fisheries and Aquatic Sciences-Cover
  • ISSN: 1303-2712
  • Başlangıç: 2015
  • Yayıncı: Su Ürünleri Merkez Araştırma Enstitüsü - Trabzon
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