Al-Ruqaie Ibrahim M
Natural Resources and Environment Research Institute, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh 11442, Kingdom of Saudi Arabia.
Pak J Biol Sci. 2007 Oct 1;10(19):3248-53. doi: 10.3923/pjbs.2007.3248.3253.
A Laboratory experiment was used to evaluate the effect of extruded leftover food as an alternate source of fish diet to Nile tilapia (Oreochromis niloticus, 76.75 +/- 1.27 g). Three experimental diets were used. Two extruded leftover food types [with minerals and vitamins (type-1) and without (type-2) were used to prepare two experimental treatments in duplicate as compared to a commercial tilapia diet (ARASCO) as a control. The final body weight and Specific Growth Rate (SGR) were not affected by different types of leftover feed. Whereas, the Feed Conversion Ratio (FCR) and the Protein Efficiency Ratio (PER) were significantly affected by the different feeds. The highest significant values of FCR was shown for fish fed with extruded leftover feed without premix, while Nile tilapia fed with control diet recorded the highest values of PER. The present study showed that the extruded leftover food could be used to prepare least cost diet for Nile tilapia.
通过实验室实验评估挤压处理后的剩余食物作为尼罗罗非鱼（Oreochromis niloticus，体重76.75 +/- 1.27克）替代鱼饲料来源的效果。使用了三种实验饲料。与作为对照的商业罗非鱼饲料（ARASCO）相比，两种挤压处理后的剩余食物类型（一种添加矿物质和维生素（类型1），另一种不添加（类型2））被用于制备两个重复的实验处理组。不同类型的剩余饲料对鱼的终末体重和特定生长率（SGR）没有影响。然而，饲料转化率（FCR）和蛋白质效率比（PER）受到不同饲料的显著影响。喂食未添加预混料的挤压剩余饲料的鱼的FCR值最高，而喂食对照饲料的尼罗罗非鱼的PER值最高。本研究表明，挤压处理后的剩余食物可用于为尼罗罗非鱼制备成本最低的饲料。
