Tülay ALTUN, Nazmi TEKELİOĞLU, Erdal NEVŞAT, Yusuf SAĞAT

Some growth parameters on European Eel (Anguilla anguilla L., 1758) fed with different feeds

Bu çalışmanın amacı, balıkhane artıkları (BA), tavuk kesimhanesinin bazı artıkları (TA), kuru karma alabalık yemi (YY), balıkhane artıkları ile kuru karma alabalık yemi karışımı (BA+YY) ve tavuk kesimhanesinin bazı artıkları ile kuru karma alabalık yemi karışımının (TA+YY) Avrupa yılanbalığının bazı büyüme parametreleri üzerine etkisinin belirlenmesidir. Başlangıç ortalama ağırlığı 99,07±2,96g olan yılanbalıklan 80 günlük deneme süresi sonunda en iyi TA+YY yemi ile büyüme kaydetmiştir (128,56±1,75g). Bu grubun spesifik büyüme oranı % 0,33±0,02, yem değerlendirme oranı ise 8,82±0,29 olarak bulunmuştur. Bu grubu TA, BA+YY, YY, BA grupları izlemiştir. Canlı ağırlık ortalamaları gruplar arasında istatîstiki olarak farklılık göstermiştir. BA grubunun sonuç ağırlık ortalaması taze balık eti verilen yılanbalıklan için bildirilen değerler arasındadır. Gruplarda görülen ölüm oranları %7,40±4,90 ile %16,66±3,21 arasında değişim göstermiştir.

Anahtar Kelimeler:

büyüme faktörleri, ağırlık artışı, balık beslenmesi, yemden yararlanma, büyüme oranı, büyüme, Avrupa yılan balığı

Farklı yemlerle beslenen avrupa yılanbalığı (Anguilla anguilla L.)'nda bazı büyüme parametreleri

The present study was carried out to determine some growth parameters of European eel, Anguilla anguilla (L) fed with different feeds; wastes of fish markets (BA), some wastes of slaughterhouses (TA), artificial trout feed (YY), mixtures of artificial feed with either wastes of fish markets (BA+YY), some wastes slaughterhouses (TA+YY). The results obtained at the end of a 80 day- study time demonstrated that the eel with initial mean weight 99.02±2.96g grew best (128.56±1.75g) on TA+YY feed. The mean specific growth and the feed conversion rates for this group were 0.33±0.02 % and 8.82±0.29, respectively. Based on all criteria applied during the course of this study, the best growth performance group TA+YY was followed by TA, BA+YY, YY, and BA respectively. There were significant differences (P<0.05) on mean body weight of the experimental groups that were tested during the present study. Final body weight value obtained for group BA is among the values reported for European eel fed with fresh fish flesh in previous studies. Mortality varied between 7.40+.4.90 % and 16.66±3.21 % among all the groups.

Keywords:

growth factors, weight gain, fish feeding, feed conversion efficiency, growth rate, growth, European eels,

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