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Replacing fish meal with chicken offal silage in commercial Oreochromis niloticus (L.) feed
Author(s) -
Belal I E H,
AlOwaifeir A,
AlDosari M
Publication year - 1995
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.1995.tb00879.x
Subject(s) - biology , oreochromis , silage , fish meal , feed conversion ratio , meal , zoology , weight gain , body weight , food science , fish <actinopterygii> , protein efficiency ratio , composition (language) , proximate , fishery , linguistics , philosophy , endocrinology
Four isocaloric isonitrogenous rations containing various levels (0,10, 15 and 20%) of chicken offal silage as a replacement for fish meal were fed to three replicate groups of Oreochromis niloticus (L.) fingerlings with a mean initial weight of 10.8g. Ten fish per tank were tested for 5 weeks in 40‐1 aquaria. The aquaria were put together in a flow‐through system utilizing underground water (24 ± 3°C). Weight gain, feed conversion, protein efficiency ratio and proximate body composition did not vary significantly between treatments. These results indicate that, on an isocaloric/ isonitrogenous basis, chicken offal silage can make up as much as 20% of O. niloticus commercial feed as a replacement for fish meal without any effect on growth or proximate body composition under the experimental conditions.