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| Igbinosun, J.E.; Roberts, O.O.; Amako, D.. |
| The possibility of wholly or partially replaced wheat offals with dried water hyacinth meal in the diets of Tilapia zillii fingerlings was investigated. Four diets, A, B., C and D were formulated. Diet A contain 45% wheat offal in addition to fishmeal and soyabean meal as sources of protein. B and C were diets in which 100% and 50% of the wheat offals were replaced by dried water hyacinth meal respectively. Diet D had 80% water hyacinth meal and an additional 18% Casein as the only other source protein. Results of four weeks feeding trial showed that Tilapia zillii fingerlings would not ingest diet D containing 80% water hyacinth meal without the addition of fishmeal. Water hyacinth meal could not wholly replace wheat offals in Tilapia diets unless at... |
| Tipo: Report |
Palavras-chave: Feed preparation; Feed composition; Feed composition; Http://aims.fao.org/aos/agrovoc/c_10770. |
| Ano: 1988 |
URL: http://hdl.handle.net/1834/2389 |
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| Igbinosun, J.E.; Talabi, S.O.; Roberts, O.O.; Okolie, E.. |
| The nutritional effects of the complete or partial replacement of fishmeal by Soyabean meal in the diets of catfish were investigated. Four diets A, B, C, and D in which 34% of fish meal was replaced weight by weight with 0%, 10%, 20% and 34% of Soya-bean meal respectively were fed to four groups of brackish water catfish for six weeks. Results showed that although the digestibilities of proteins were almost equal in all the four groups, the groups fed diet D in which 100% of the fishmeal had been replaced by Soyabean had the least growth as compared to A, B and C. Nevertheless, the group fed diet D (with the least growth) had an economy of gain twice that of the group fed diet A. The liver and heart indices and the proximate compositions of the muscle... |
| Tipo: Working Paper |
Palavras-chave: Brackishwater aquaculture; Aquaculture development. |
| Ano: 1982 |
URL: http://hdl.handle.net/1834/2322 |
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| Igbinosun, J.E.; Talabi, S.O.. |
| Four groups of brackish water catfish were fed four diets: N. F. (NIOMR formula 1 feed). A. B. and C. for seven weeks. Feeds N.F., A., B. and C. contained 1.21% fish oil + 5.59% vegetable oil; 1.21% fish oil + 7.39% vegetable oil; 1.21% fish oil + 9.09% vegetable oil; 1.21% fish oil +10.89% vegetable oil respectively. The total amounts of vegetable oil in A., B. and C. included the supplementation of the residual oil in the ingredients with 2%, 4% and 6% respectively with ordinary cooking mixed vegetable oil. Results of feeding trial showed that growth was best in the group led diets containing 10.89% vegetable oil and least in those containing 9.09% vegetable oil. There seemed to have been a positive correlation between growth rate and hepatic... |
| Tipo: Working Paper |
Palavras-chave: Aquaculture development; Brackishwater aquaculture. |
| Ano: 1982 |
URL: http://hdl.handle.net/1834/2323 |
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| Igbinosun, J.E.; Roberts, O.O.. |
| Pelleted feeds A.B, C and D containing 4% 3%, 2% and 1% sodium alginate respectively were tested for water stability in terms of floatation time, sinking rates and crumbing rates (on getting to the bottom of the tank). Results showed that although all the pellets had Zero Floatation time, it took pellets from the D group longer time to sink. A and B pellets sank at equal rates. The crumbling rates on getting to the bottom tended to decrease with decreasing levels of binder. When the diets were later fed to four groups of Tilapia fingerlings for seven weeks, results showed that the growth rate, feed conversion efficiencies and protein efficiency rations followed the trend C> D> B> A. It is therefore suggested that 2% level of alginate binder is... |
| Tipo: Report |
Palavras-chave: Feed preparation; Fish meal processing. |
| Ano: 1988 |
URL: http://hdl.handle.net/1834/2483 |
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