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首页> 外文期刊>African Journal of Biotechnology >Growth performance and nutrient utilization of Clarias gariepinus fed with different dietary levels of processed cassava leaves
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Growth performance and nutrient utilization of Clarias gariepinus fed with different dietary levels of processed cassava leaves

机译：饲喂不同日粮水平的加工木薯叶片的aria鱼的生长性能和养分利用

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The growth performance of Clarias gariepinus fed with different dietary levels of processed cassava leaves and their nutrient utilized were studied for a period of 24 weeks. One hundred and forty four experimental Catfish (Clarias gariepinus) with 0.75±0.20 g mean weight and 3.9±0.31 cm mean total length were collected from Aqua-fish Consult, Awka, Anambra State, Nigeria. Eighteen rectangular plastic tanks were used for this study. Green cassava leaves (Manihot esculenta) were collected from a farm in Uda, Igbo-Eze North of Enugu State. The leaves were soaked for 36 h and sun-dried for one week to reduce the presence of cyanogenic glycosides. The dried leaves were ground into fine powder and analyzed for proximate composition. The experimental design used was Complete Randomized Block Design (CRBD) consisting of 18 treatments. Triplicate culture tanks in treated (L25-L100), and control groups (L0 and Ac) were stocked with eight fingerlings per square meter, respectively. The cost benefit of C. gariepinus fingerlings was estimated using weight gain and specific growth rate against management and construction cost. Weight gain, specific growth rate (SGR), feed efficiency (FE) and total length (TL) of catfish in different treatments were plotted against water chemistry parameters. This trail was conducted to access the possibility of replacing maize (Zea mays) with varying levels of whole cassava leaf meal in the diet of C. gariepinus catfish. Five isocaloric and isonitrogenous diets were formulated to contain 0, 25, 50, 75 and 100% cassava leaves to replace equal weight of maize meal. Internationally made fish feed (coppens) was also used as a control feed. All the diets were fed to catfish (C. gariepinus) fingerlings in replicate for 24 weeks. The results revealed that optimum requirement of cassava leaves level in the formulation of practical diets for improved growth of C. gariepinus was 25%.
机译：研究了饲喂不同日粮水平的加工木薯叶后生长的Clarias gariepinus的生长性能及其养分利用率，为期24周。从尼日利亚阿纳布拉州阿卡水产鱼类咨询公司收集了平均重量为0.75±0.20 g，平均总长度为3.9±0.31 cm的144只实验性Cat鱼（Clarias gariepinus）。这项研究使用了18个矩形塑料罐。绿色的木薯叶（Manihot esculenta）是从埃努古州北部伊博埃兹（Egbo-Eze）Uda的一个农场收集的。将叶子浸泡36小时，然后风干1周，以减少氰基苷的存在。将干燥的叶子研磨成细粉，并分析其附近的组成。使用的实验设计是由18种治疗方法组成的完全随机区组设计（CRBD）。在处理过的（L25-L100）和对照组（L0和Ac）中，一式三份的培养池分别每平方米饲养八个鱼种。使用体重增加和特定的生长速度相对于管理和建设成本来估算加拿大油松鱼种的成本效益。对照水化学参数，绘制了不同处理条件下fish鱼的增重，比生长率（SGR），饲料效率（FE）和总长度（TL）。进行该试验的目的是为了获得在加拿大油茶。鱼日粮中以不同水平的全木薯叶粉替代玉米（玉米）的可能性。配制了五种等热量和等氮的日粮，分别包含0％，25％，50％，75％和100％的木薯叶，以替代等量的玉米粉。国际生产的鱼饲料（大麦）也用作对照饲料。所有饲料均重复喂食cat鱼（C. gariepinus）鱼种24周。结果表明，为改善C. gariepinus的生长而在实际日粮配方中木薯叶水平的最佳要求为25％。

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