EFFECT OF FEEDING REGIMES ON REPRODUCTIVE PERFORMANCE OF NILE TILAPIA (Oreochromis niloticus) BROODFISH IN A COMMERCIAL HATCHERY | ||
| Fayoum Journal of Agricultural Research and Development | ||
| Article 20, Volume 20, Issue 2, July 2006, Pages 242-249 PDF (460.68 K) | ||
| Document Type: Research articles. | ||
| DOI: 10.21608/fjard.2006.197605 | ||
| Author | ||
| Ramadan M. Abou-Zied | ||
| Anim. Prod. Dept. Faculty of Agriculture, Fayoum University, Egypt. | ||
| Abstract | ||
| The present work was conducted in commercial hatchery at Shakshouk, Fayoum Governorate. The trial started at 6/5/2005 and lasted for 122 days. A number of 105 females and 35 males of one year old broodfish weighing 170 to 175 g in average were used per hapa. Five feeding regimes were used (0.5, 1.0, 1.5, 2.0 and 3.0% of broodfish body mass/day) forming 5 treatments (regimes). Seeds were collected at 10 day intervals starting from 28/5/2005. Data obtained were on reproductive performance, growth performance and economic evaluation. Data revealed that the 1% feeding rate showed better reproductive performance and economic evaluation. The 0.5% feeding rate tended to show slightly lower values. The other higher levels of feeding were not recommended. | ||
| Keywords | ||
| Nile tilapia; broodfish; feeding rate; productive performance fecundity and economics | ||
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