Growth and Body Development of Oreochromis niloticus (Linnaeus, 1758) Fattened in Floating Cages Based on Commercial Feed in Benin

Geoffroy Olayemi Edea, Lambert Cloud Hinvi, Youssouf Abou and Armand Bienvenu Gbangboche

Journal of Biology and Life Science, 2020, vol. 11, issue 1, 36-56

Abstract: This work evaluates the growth and body development of Oreochromis niloticus in floating cages in the Toho Lake of Benin. Thus, 6000 juvenile monosex male with an average initial weight of 8.87± 4.89 g and average initial total length of 7.87 ±1.43 cm were randomly distributed in two floating cages (5 * 5 *2.5 m3) at the stocking density of 3000 fish/cage. The fish were hand-fed to apparent satiation, three times daily, using 45-32% crude protein commercial pelleted floating feed Skretting R. The physico-chemical parameters of lake water recorded every 72 hours during the experiment were within the suitable ranges for fish culture and were as follows- temperature (27.78 ± 0.41 °C), pH (7.55 ± 0.22), dissolved oxygen (4.03 ± 0.96 mg/l), ammonium (0.31 ± 0.18 mg/l), nitrite (0.29 ± 0.07 mg/l) and nitrate (0.27 ± 0.12 mg/l). The variables studied at the end of the 215 days of rearing were as follows- final mean total length (26.61 ± 2.99 cm), final mean standard length (22.40 ± 2.74 cm), final mean predorsal length (6.93 ± 0.94 cm), final mean head length (3.45 ± 0.58 cm), final mean dorsal fin base length (13.55 ± 2.96 cm), final mean inter-orbital width (2.97 ± 0.37 cm), final mean body height (8.57 ± 1.56 cm) and final mean caudal peduncle height (3.27 ± 0.39 cm). The zootechnical growth parameters evaluated were as follows- survival rate (91.5%), final mean body weight (402.18 ± 137.05 g), average daily weight gain (1.83 ± 0.08 g), specific growth rate (0.77 ± 0.03%/day), feed conversion ratio (1.74 ± 0.09%) and protein efficiency ratio (1.62 ± 0.06). These results compared to the literature indicate interesting growth and body development and it would be important to promote in-cage farming of Oreochromis niloticus.

Keywords: Oreochromis niloticus; breeding; growth; cage; commercial feed (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.macrothink.org/journal/index.php/jbls/article/download/15259/12150 (application/pdf)
http://www.macrothink.org/journal/index.php/jbls/article/view/15259 (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:mth:jbls88:v:11:y:2020:i:1:p:36-56

Access Statistics for this article

Journal of Biology and Life Science is currently edited by Kelvin Lee

More articles in Journal of Biology and Life Science from Macrothink Institute
Bibliographic data for series maintained by Technical Support Office ( this e-mail address is bad, please contact ).