Journals / Turkish Journal of Veterinary and Animal Sciences / 2004 / Cilt: 28 - Sayı: 3

Diyette yer alan bitkisel yağların levrek (Dicentrarchus labrax L., 1758) yavrularında büyüme performansı, vücut kompozisyonu ve yağ asidi profiline etkisi

The effect of dietary oils of vegetable origin on the performance, body composition and fatty acid profiles of sea bass (Dicentrarchus labrax L., 1758) juveniles

Pages
553–562
Publication Date
2022-11-05
DOI
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⚡ TL;DR(Too Long; Didn't Read)

In the statistical analyses, the live weight gain and carcass fat content and fatty acid composition in the experimental groups were significantly different (P < 0.05).

📌 3 Key Takeaways

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Objective & Hypothesis:Abstract: Body fat composition and growth performance of sea bass juveniles fed with different kinds of vegetable oils instead of fish oil were studied.
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Key Findings & Data:Feeding trials were carried out with 600 sea bass (Dicentrarchus labrax L.) juveniles with on initial live weight of 7.58 ± 0.13 g.
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Conclusion & Impact:In the statistical analyses, the live weight gain and carcass fat content and fatty acid composition in the experimental groups were significantly different (P < 0.05).
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Abstract: Body fat composition and growth performance of sea bass juveniles fed with different kinds of vegetable oils instead of fish oil were studied. Feeding trials were carried out with 600 sea bass (Dicentrarchus labrax L.) juveniles with on initial live weight of 7.58 ± 0.13 g. Experimental feeds contained fish oil, soybean oil, sunflower oil, corn oil and olive oil. In the chemical analyses of the experimental feeds, total crude fat was 12.33 ± 0.24% and total crude protein was 57.42 ± 0.31%. According to fatty acid analyses EPA (7.57%) and DHA (11.91%) in the feed containing fish oil, linolenic acid (5.50%) in the feed containing soybean oil and oleic acid (62.69%) in the feed containing olive oil were found in higher levels than in the other feeds. However, linoleic acid (18:2n-6) levels were 40.66% in soybean oil, 44.58% in sunflower oil and 45.57% in corn oil added feeds (P < 0.05). At the end of the feeding trials, the highest live weight gain and the best feed conversion ratio (FCR) were achieved with feed containing fish oil. However, live weight gain and FCR were present in lower levels in the feed containing corn oil than in the other feeds (P < 0.05). According to the crude fat analyses of the fish carcasses at the end of the feeding trials, the highest carcass fat values were in the fish fed fish oil added diets. In the fatty acids analyses of the whole fish bodies, higher values of EPA and DHA were found in the fish fed fish oil added diets than in the others. Linolenic acid (18:3n-3) and linoleic acid (18:2n-6) levels were higher in the fish fed soybean oil added feeds than in the others, and oleic acid (18:ln-9) was present in higher levels in the fish fed olive oil added feeds than in the others. In the statistical analyses, the live weight gain and carcass fat content and fatty acid composition in the experimental groups were significantly different (P < 0.05).

Özet

Bu araştırmada balık yağı yerine farklı bitkisel yağlarla beslenen levrek balıklarının vücut yağı kompozisyonu ve büyüme performansı incelenmiştir. Yemleme deneyleri başlangıç ağırlığı 7,58 ± 0,13 g olan 600 adet levrek (Dicentrarchus labrax L.) balığı ile sürdürülmüştür. Deney yemlerine sırasıyla balık yağı, soya yağı, ayçiçek yağı ve zeytin yağı ilave edilmiştir. Kimyasal analizlerde toplam ham yağ %12,33 ± 0,24 ve toplam ham protein %57,42 ± 0,31 bulunmuştur. Yağ asidi analizlerine göre balık yağı içeren yemlerde EPA (%7,57) ve DHA (%11,91), soya yağı içeren yemlerde linolenik asit (%5,50) ve zeytin yağı içeren yemlerde oleik asit (%62,69) diğer yemlerdekinden daha yüksek düzeyde bulunmuştur. Bununla birlikte, linoleik asit (18:2n-6) soya yağı içeren yemlerde %40,66, ayçiçek yağı içeren yemlerde %44,58 ve mısır yağı içeren yemlerde %45,57 oranında bulunmuştur (P < 0,05). Yemleme deneylerinin sonunda, en iyi canlı ağırlık artışı değeri ve en iyi yemden yararlanma oranı (YYO) balık yağı içeren yemle beslenen gruptan elde edilmiştir (P < 0,05). Bununla birlikte canlı ağırlık artışı ve YYO mısır yağı içeren yemlerde diğerlerinden daha düşük düzeyde bulunmuştur. Yemleme deneylerinin sonunda balık karkasındaki ham yağ analizlerine göre; balık yağı ilave edilen diyetle beslenen balıklarda, karkastaki yağ değeri en yüksek düzeyde bulunmuştur. Tüm vücuttaki yağ asidi analizlerinde en yüksek EPA ve DHA değerleri balık yağı ilave edilen yemlerle beslenen balıklarda bulunmuştur. Linolenik asit (18:3n-3) ve linoleik asit (18:2n-6) soya yağı ilave edilen yemle beslenen balıklarda en yüksek düzeyde bulunmuştur ve oleik asit (18:ln-9) zeytin yağı ilave edilen diyetle beslenen balıklarda en yüksek düzeyde bulunmuştur, istatistiksel analizlerde, canlı ağırlık artışı, karkastaki yağ miktarı ve deney gruplarındaki yağ asidi kompozisyonları önemli derecede farklı bulunmuştur (P < 0,05).

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Cite This Article

YILDIZ, M., ŞENER, E. (2022). Diyette yer alan bitkisel yağların levrek (Dicentrarchus labrax L., 1758) yavrularında büyüme performansı, vücut kompozisyonu ve yağ asidi profiline etkisi. Turkish Journal of Veterinary and Animal Sciences, Cilt: 28 - Sayı: 3, 553–562. https://ajindex.com/articles/615558

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