EFFECT OF FISH SIZE AND DENSITY AT INITIAL STOCKING ON GROWTH PERFORMANCE AND FISH MARKETABLE SIZE | ||
| Journal of Animal and Poultry Production | ||
| Article 10, Volume 32, Issue 3, March 2007, Pages 1803-1813 PDF (502.82 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jappmu.2007.219453 | ||
| Authors | ||
| M. N. Bakeer,; M. A.A. Mostafa; A. Z. Higaze | ||
| Department of Aquaculture, Central Laboratory for Aquaculture Research, Abbassa, Abo-Hammad, Sharkia Governorate, Egypt. | ||
| Abstract | ||
| Under monoculture semi-intensive system, a study on cultivation of monosex Nile tilapia (Oreochromis niloticus L.) in earthen ponds (each of 6000 m2) was done.Twelve rectangular earthen ponds were used representing six treatments, three different stocking density (SD1 , SD2 and SD3 being 9, 12 and 15 fish/m3, respectivily) within each of them two fish sizes (FS1 and FS2 being 30 and 50 g/fish, respectivily). Two replicates were used for each treatment. The treatment of 12 fish/m3 with 50 g/fish gave the best results of marketable size, net yield (8820.35 kg/feddan) and highest profit index (2.97 LE). Based on the obtained results, it could be recommended that the best fish size and stocking density of monosex Nile tilapia (O. niloticus) in monoculture semi- intensive system are 50 g /fiish at 12 fish/m3 to get the optimal marketable fish size at harrvest under similar conditions to those of the present study. | ||
| Keywords | ||
| Stocking density; Fish size; Earthen ponds; Monoculture system; Growth performance; Fish marketable size; Profit index | ||
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