EFFECTS OF FISH MEAL SUBSTITUTION WITH SUPER WORM (Zophobas morio) MEAL ON GROWTH PERFORMANCE OF RAINBOW TROUT FINGERLINGS

Year 2017, Volume: 32 Issue: 1, 1 - 7, 27.01.2017

Levent Doğankaya

https://doi.org/10.18864/TJAS201701

Abstract

A 45 days feeding trial was conducted to evaluate the effects of dietary
fishmeal replacement by super worm (Zophobas morio) meal (SWM) on growth
performance, survival, liver, kidney and intestine histology of rainbow trout
fingerlings. Fish in triplicate groups (average initial weight 1.39±0.03 g)
were fed twice a day ad libitum with
4 isonitrogenous (52% crude protein) experimental feeds in which fish meal were
substituted 0, 25%, 50% and 100% with SWM. A separate group of three replicates
were fed with a commercial feed. Fish fed with commercial diet and %25 SWM
revealed the highest values for growth performance but survival rates were
variable. These results indicate that fish meal replacement with SWM up to 25%
have no adverse effect on rainbow trout fingerlings and a decrease in growth
parameters was obvious with increasing levels of SWM in diets.

Keywords

Fish feed, Growth, Histology, Zophobas morio

GÖKKUŞAĞI ALABALIĞI YAVRU YEMLERİNDE BALIK UNU YERİNE SÜPER KURT (Zophobas morio) UNU İKAMESİNİN BÜYÜME PERFORMANSINA ETKİLERİ

Abstract

Bu çalışma, balık unu ile süper kurt (Zophobas morio) unu ikamesinin alabalık
yavrularında büyüme performansı, yaşama oranı, karaciğer, böbrek ve
incebağırsak histolojisi üzerindeki etkilerini izlemek üzere 45 gün süreyle 3
paralelli yürütülmüştür. Ortalama başlangıç ağırlığı 1,39±0,03 gr olan yavru
alabalıklar süper kurt unu ile balık ununun %0, %25, %50 %100 oranlarında ikame
edildiği dört farklı yem ve bir ticari alabalık yavru yemi ile günde iki kez
doyuncaya kadar elle yemlenmiştir. Ticari yem ve %25 süper kurt unu içeren yem
ile beslenen gruplarda canlı ağırlık kazancı ve boy artışı bakımından en iyi
değerler görülürken, yemdeki süper kurt unu oranı arttıkça büyüme performansı
olumsuz etkilenmiştir. Gruplarda gözlenen yaşama oranları değişkenlik gösterse
de süper kurt unu kullanılan gruplarda daha düşük gerçekleşmiş ve istatistiki
olarak da aradaki fark önemlidir (p<0,05). Elde edilen sonuçlar, süper kurt
ununun alabalık yavru yemlerinde balık unu ile büyüme performansını olumsuz
etkilemeden %25 düzeyine kadar ikame edilebileceğini ortaya koymuştur. 

Keywords

Balık yemi, Büyüme performansı, Histoloji, Zophobas morio

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