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首页> 外文期刊>Aquaculture Research >Effect of replacing soybean meal with yeast-fermented canola meal on growth and nutrient retention of Nile tilapia, Oreochromis niloticus (Linnaeus 1758)
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Effect of replacing soybean meal with yeast-fermented canola meal on growth and nutrient retention of Nile tilapia, Oreochromis niloticus (Linnaeus 1758)

机译：用酵母发酵的低芥酸菜籽粕替代豆粕对尼罗罗非鱼，尼罗罗非鱼的生长和营养保留的影响（Linnaeus 1758）

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摘要

Yeast fermentation integrated with water soaking was applied as a method to reduce the levels of some anti-nutritional factors in canola meal. The procedure completely eliminated glucosinolates and it reduced phytic acid content by 18%. It also led to increase of 9% of crude protein and 8-32% of some minerals in the meal. A 60-day feeding trial was conducted to evaluate replacement of dietary soybean meal protein with yeast-fermented canola meal for Nile tilapia at ratios of 0, 25, 50, 75 and 100% respectively. Three groups of fish with an initial weight of 10 g were fed with each diet twice a day to an apparent satiation. The results showed that there were non-significant differences (P > 0.05) in growth, survival rate, feed intake and feed conversion ratio for all fish fed with the test diets. However, replacement with 75 and 100% levels significantly reduced (P 0.05) protein efficiency ratio and nutrient digestibility of protein, lipid, ash, Ca, Mg and P of fish compared with the lower levels. The low retention of protein, lipid, ash, Ca, Mg and P were also observed. These effects seemed to be related to an increased dietary phytic acid.
机译：采用酵母发酵加水浸泡法降低油菜粕中某些抗营养因子的含量。该程序完全消除了芥子油苷，并将植酸含量降低了18％。这也使粗粉中的粗蛋白增加了9％，某些矿物质的含量增加了8-32％。进行了为期60天的喂养试验，以评估用酵母发酵的低芥酸菜籽粉代替尼罗罗非鱼的膳食豆粕蛋白的比例分别为0、25、50、75和100％。每天两次给三组初始重量为10 g的鱼喂食，以使其明显饱食。结果表明，所有饲喂试验饲料的鱼的生长，成活率，采食量和饲料转化率均无显着差异（P> 0.05）。然而，与较低的水平相比，用75％和100％的水平替代可显着降低（P <0.05）蛋白质利用率和鱼的蛋白质，脂质，灰分，Ca，Mg和P的营养消化率。还观察到蛋白质，脂质，灰分，钙，镁和磷的保留率低。这些作用似乎与膳食植酸的增加有关。

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