Lysine requirement of Oreochromis niloticus
Oreochromis niloticus was reared in 54 litre glass tanks being fed with 35% crude protein diets for 56 days. A basal diet consisting intact protein from groundnut cake and guinea com (4.56g lysine/100g protein) ,four graded levels of crystalline lysine was added to formulate diets consisting 6.87, 7.30, 7.41, 7.51 g lysine /100g protein and a reference diet of intact protein from groundnut cake, guinea com and fish meal having 5.37g lysine/100g protein was fed to six treatments in triplicate groups. The growth parameters shows there was no significant difference in the mean weight gain, specific growth rate, food conversion efficiency and protein efficiency ratio of fish fed varying levels of lysine. A maxima was obtained from the quadratic equation of food efficiency ratio against graded levels of lysine at 7.3g/100g protein which is the requirement. Carcass ash was higher with the initial fish while crude protein was highest with the the fish fed 7.3g lysine/l00g protein
| Main Authors: | , |
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| Format: | conference_item biblioteca |
| Language: | English |
| Published: |
Fisheries Society of Nigeria
2009
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| Subjects: | Aquaculture, Oreochromis niloticus, Nigeria, New Bussa, Fish culture, Nutritional requirements, Nutrition, Feeding experiments, Lysine, |
| Online Access: | http://hdl.handle.net/1834/38094 |
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| Summary: | Oreochromis niloticus was reared in 54 litre glass tanks being fed with 35% crude protein diets for 56 days. A basal diet consisting intact protein from groundnut cake and guinea com (4.56g lysine/100g protein) ,four graded levels of crystalline lysine was added to formulate diets consisting 6.87, 7.30, 7.41, 7.51 g lysine /100g protein and a reference diet of intact protein from groundnut cake, guinea com and fish meal having 5.37g lysine/100g protein was fed to six treatments in triplicate groups. The growth parameters shows there was no significant difference in the mean weight gain, specific growth rate, food conversion efficiency and protein efficiency ratio of fish fed varying levels of lysine. A maxima was obtained from the quadratic equation of food efficiency ratio against graded levels of lysine at 7.3g/100g protein which is the requirement. Carcass ash was higher with the initial fish while crude protein was highest with the the fish fed 7.3g lysine/l00g protein |
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