Effect of yeast-fermentation and extrusion of canola meal on digestibility and growth performance of rainbow trout and Nile tilapia

双低菜粕酵母发酵和挤压对虹鳟鱼和尼罗罗非鱼消化率和生长性能的影响

• 批准号: 468652-2014
• 负责人: Drew, Murray
• 金额: $ 3.2万
• 依托单位: University of Saskatchewan
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=577251
• 关键词: Effect; yeast; fermentation; extrusion; canola

Replacing fishmeal with plant protein ingredients is hampered by the presence of antinutritional factors present in virtually all vegetable ingredients. Canola meal is particularly problematic since it contains many deleterious antinutritional factors including saponins, tannins, phytates, glucosinolates and insoluble fibre. Attempts to improve the feeding value of canola meal have concentrated on the production of canola protein concentrate. Although canola protein concentrate has significantly lower levels of antinutritional factors than canola meal, it is not economically viable as an ingredient in aquafeeds due to the high cost of manufacturing this product. An alternative and cheaper approach to reduce the level of ANFs may be fermentation with yeast and/or enzyme pretreatment. Previous studies have reported that the growth performance of fish fed fermented canola meal was significantly better than fish fed conventional canola meal. This proposal aims to examine the effects of feeding yeast-fermented CM combined with supplemented enzyme pretreatment on the nutrient digestibility and growth performance of rainbow trout and Nile tilapia.

用植物蛋白成分代替鱼粉的方法受到几乎所有蔬菜成分中存在的抗营养因子的阻碍。菜籽粕尤其有问题，因为它含有许多有害的抗营养因子，包括皂苷、单宁、植酸盐、硫代葡萄糖苷和不溶性纤维。提高菜籽粕饲用价值的尝试主要集中在生产菜籽粕浓缩蛋白上。尽管油菜籽蛋白浓缩物的抗营养因子含量明显低于油菜籽粕，但由于生产成本高，作为水产饲料的一种成分在经济上是不可行的。降低ANFs水平的另一种更便宜的方法可能是用酵母发酵和/或酶预处理。已有研究报道，饲料发酵菜籽粕的生长性能明显优于饲料常规菜籽粕。