Effects of dietary energy-protein ratio and vitamin content on the growth of tilapia(Oreochromis aurea)
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摘要: 比较不同能量蛋白比饲料和不同维生素添加量对罗非鱼生长的影响,同时观察不同浮游生物含量的土池和水泥池中饲料维生素含量的变化与罗非鱼生长的关系.结果表明:随着饲料中能量蛋白比的增加,罗非鱼生长速度和饲料效率有下降的趋势,罗非鱼幼鱼的合适能量蛋白比为39.2～48.29 kJ·g-1,饲料中蛋白质水平28%～31%为宜.在水泥池中浮游生物含量比较少的情况下,饲料中维生素含量对罗非鱼生长影响很大,并有随着饲料中维生素添加量的增加,生长速度提高.Abstract: Effects of energy-protein ratio and vitamin content in the diet for tilapia on its growth were studied.In addition,the vitamin content in the pond and tank in relation to tilapia growth was determined.The results showed that as the energy-protein ratio increased,both tilapia growth rate and feed efficiency decreased.The optimal ratio of energy-protein for the young fish was 39.62-48.29 kJ·g-1.The optimal protein content was 28%-31%.The feed with added vitamins in the tank,where plankton was in less quantity than in the pond,had significant effects on tilapia growth—the rate increased with the increased amount of vitamins.
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Key words:
- tilapia /
- formulation feed /
- energy-protein ratio /
- vitamin /
- plankton
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[1] SHIAU S Y,HSU C W.Dietary pantathenie acid rcquirenmnt of juveninle grass shrimp(Penae-monodor)[J].J Nutr,1999,129(3):718-21. -
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