Role of dietary L-carnitine supplements on improving of reproductive performance of Nile tilapia (Oreochromis niloticus) | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 45, Volume 23, Issue 3, July 2019, Page 589-598 PDF (551.24 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejabf.2019.48709 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Ahmed F. Fath El-Bab; Mostafa M. El-Moghazy; Mohammed A. A. Mostafa; Nayera M. S. El-Dweny | ||||
| Abstract | ||||
| Studies on the effect of dietary L-carnitine supplements on reproductive performance for Oreochromis niloticus are scarce. A Seven months feeding trial was undertaken to examine four L-carnitine levels (control, 300, 600 and 900 mg kg 1 diet) on the reproductive performance for Oreochromis niloticus females and their fries during whole hatching season. A 120 females for were randomly distributed into 4 ponds (30 females per pond) represent four treatments and 4 ponds for the fry produced. During of this study, the reproductive traits for females and growth performance for fries were recorded. It was found that the dietary L-carnitine supplementation at all levels (300, 600 and 900 mg-1kg) significantly (P<0.01) increased all reproductive performance parameters (females weight (FW), total egg weight per female (EW/F), egg weight (g) per gm of body weight (EW/GF), Absolute and relative fecundity (ABS) and (REL), The ratio of number of eggs / one gram of egg (NE/GE), Hatchability percentage (Hat%), Fry number per fish (FN/F) and Fry number per gram of female body weight (FN/GF)), also, increased all growth performance parameters for fries produced (body weight, daily weight gain and specific growth rate). and improved feed conversion ratio (FCR) and protein efficiency ratio (PER). | ||||
| Keywords | ||||
| L-carnitine; reproductive performance; Growth performance; Nile tilapia; O. niloticus | ||||
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