Effects of Dietary L-carnitine Supplementation on Growth, Muscle Fatty acid Composition and Economic Profit of Rainbow Trout (Oncorhynchus mykiss)


DİKEL S., Unalan B., EROLDOĞAN O. T., Hunt A. O.

TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES, cilt.10, sa.2, ss.173-180, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 10 Sayı: 2
  • Basım Tarihi: 2010
  • Doi Numarası: 10.4194/trjfas.2010.0203
  • Dergi Adı: TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.173-180
  • Anahtar Kelimeler: L-carnitine, rainbow trout, growth, fatty acid, economic profit index, economic conversion ratio, RED-SEA BREAM, MORONE-CHRYSOPS FEMALE, OREOCHROMIS-NILOTICUS, BODY-COMPOSITION, POECILIA-RETICULATA, SAXATILIS MALE, PAGRUS-MAJOR, PERFORMANCE, FINGERLINGS, METABOLISM
  • Çukurova Üniversitesi Adresli: Evet

Özet

In this study, the effect of dietary L-carnitine on growth, proximate and muscle fatty acid compositions of rainbow trout (Oncorhynchus mykiss) were investigated. The fish were fed with diets containing 300 mg kg(-1) L-carnitine (LC300), other group was fed with diets containing 600 mg kg(-1) L-carnitine (LC600) and control group was not supplementary L-carnitine for 63 days. The weight gain of LC600 fed with L-carnitine supplemented was found to be 7.73% higher than in control group. Feed conversion ratio in LC600 (1.66) and LC300 (1.60) is better than in control group (2.00). L-carnitine supplemented groups would be lower cost of production than control. Economic conversion ratio (ECR) of LC300 (2.71 US.$ kg) would represent a saving of 0.44 US.$ kg(-1) compared to the control. L-carnitine administration did not affect proximate composition of muscle except for protein percent. Protein content of L-carnitine supplemented groups was higher than control group. Total saturated monounsaturated and polyunsaturated muscle fatty acid content increased by L-carnitine supplementation in rainbow trout. The results indicate that supplementation of 600 mg L-carnitine/kg diet is more effective on growth than the other L-carnitine supplementation level 300 mg kg(-1) and control diet in commercial cage conditions.