Effects of the feeds containing different plant protein sources on growth performance and body composition of rainbow trout (oncorhynchus mykiss, w.)

Araştırmada; soya, ayçiçeği tohumu, küspesi, kanola ve pamuk tohumu küspelerinden hangisinin en iyi bitkisel protein kaynağı olduğunun karşılaştırılması için başlangıç ortalama canlı ağırlığı 50,08±0,19 g olan 720 adet gökkuşağı alabalığı(Oncorhynchus mykiss, W.) kullanılmıştır. Sırasıyla soya küspesi (SFK), ayçiçeği tohumu küspesi (ATK), kanola küspesi (KK) ve pamuk tohumu küspesi (PTK) içeren 4 yem kullanılmıştır. Deneme, her biri 3 paralelli olmak üzere 4 deneme grubu ile 12 hafta boyunca sürmüştür. Tüm deneme yemleri izonitrojenik (%42 HP) ve izokalorik (13.9 MJ SE/kg yem) olarak hazırlanmıştır. Deneme sonunda gruplar arasında yem tüketimi, kondisyon faktörü ve yaşama gücü bakımından farklılık gözlenmezken (P>0,05), ortalama canlı ağırlık, ortalama canlı ağırlık kazancı, yemden yararlanma oranı (YYO), proteinden yararlanma oranı (PYO) ve özel büyüme oranı (ÖBO) bakımından saptanan farklılık önemli bulunmuştur (P

Gökkuşağı alabalıklarının (oncorhynchus mykiss) besi performansı ve vücut bileşimi üzerinde farklı protein kaynakları içeren yemlerin etkisi

In this study, a total of 720 rainbow trout (Oncorhyncus mykiss) having 50.08±0.19 g of average initial weight were used to compare of usage of the soybean meal, sunflower meal, canola meal and cottonseed meal as the best plant protein source. Four different feeds which contain soybean meal (SBM), canola meal (CM), sunflower meal (SFM) and cotton seed meal were used, respectively. Four trial groups were tested in triplicate during 12 weeks. Experimental diets were prepared as isonitrogenous (42% CP) and isocaloric (13.9 MJ DE/kg feed). At the end of the study, it was observed that there was no significantly difference among the groups for average feed consumption, condition factor and survival rate, however, average live weight, live weight gain, feed conversion ratio (FCR), protein efficiency ratio (PER) and specific growth rate (SGR) were found statistically significant (P<0.05). Moreover, the difference in the composition of carcass and total body between the groups were found statistically significant (P<0.05). Consequently, it is concluded that soybean meal, canola meal and sunflower meal can be used as a part of fish meal, however cottonseed meal can be used as only smolt or older trout feeds if it is cheap and has good quality.

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