Utilization of Cooked and Uncooked-Ulva Meal as Binders in Litopenaeus vannamei Diets

飼料中不同含量熱處理及未熱處理之石蓴藻粉對飼料黏著性與白蝦（Litopenaeus vannamei）成長之影響

蔡雯娟(Mun-Kuin Choy) ； 沈士新(Shyn-Shin Sheen)

《臺灣水產學會刊》 43卷2期 (2016/06) Pp. 75-82

https://doi.org/10.29822/JFST.201606_43(2).0002

摘要

The aims of this study evaluated the acceptability of Ulva meal as a binder and the efficiency of Ulva meal as shrimp feed binder with different processing method in Litopenaeus vannamei diets. Seven isonitrogenous and isolipidic diets were formulated to contain 5, 10 and 20% cooked and uncooked Ulva meal and a control diet to feed L. vannamei for six weeks. Shrimp (initial weight 0.066 g) fed a 10% uncooked-Ulva diet showed the best growth performance in terms of final weight (1.102 g), weight gain (1556.81%) and SGR (6.84%day^(-1)). Shrimp fed a diet with 20% cooked-Ulva showed significant lower weight gain than those fed diets containing 5% cooked- Ulva, 5% and 10% uncooked-Ulva. There was no significantly different weight gain of shrimp fed with control and other treatment diets. 20% Cooked-Ulva diet had the best water stability at 1 hour (96.21%), 2 hour (94.97%), 3 hours (94.33%) and 4 hours (94.14%). Inclusion up to 20% of Ulva meal in diet is acceptable without significant negative effect on shrimp growth performance.

關鍵字

Seaweed meal ； Binder ； Litopenaeus vannamei

並列摘要

本實驗以經熱處理及未熱處理石蓴藻粉分別添加0、5、10、20%於飼料中作為黏著劑，配製為等蛋白及等油脂之7組實驗飼料，實驗飼料粗蛋白為31.8－34.4%；粗油脂為11.6－12.5%。0.066 g白蝦投餵實驗飼料六週後，投餵含10%熱處理石蓴藻粉組有最好成長表現，末重為1.10 g、增重率為1556.8%、每日特定成長率為6.8%day^(-1)；投餵20%熱處理石蓴藻粉組白蝦成長顯著低於5%熱處理石蓴藻粉組與5、10%未熱處理石蓴藻粉組；而控制組成長表現則與其他各組無顯著差異。經四小時水中安定性測試後，20%熱處理石蓴組在各小時皆有最高的水中安定性，分別為1小時96.21%；2小時94.97%；3小時94.33%；4小時94.14%。

並列關鍵字

海藻粉 ； 黏著劑 ； 白蝦（Litopenaeus vannamei）