中文摘要：红鳟鱼对工业相关水平的饲料传镰刀菌毒素脱氧雪腐镰刀菌烯醇(DON)，一种常见的植物性饲料污染物非常敏感。常用饲料添加剂（酵母、细菌、酶等）抵消霉菌毒素对动物性能的负作用。但是，它们在水产养殖饲料中的应用带有很大的投机性。本研究开展了为期12周的红鳟鱼（初始平均体重=1.8g/条）增长试验，评估据称能有效改善DON负作用的市售饲料添加剂(CFA)的功效。研究发现日粮中添加推荐剂量的CFA不能减轻DON对红鳟鱼生长性能及养分利用的负作用。本文所用的饲料添加剂是通过广泛研究，针对恒温动物开发的；因此，用于冷水鱼种饲料超出了其效力范围。系统地开发新方法，对减轻高度敏感的养殖鱼类的霉菌毒素至关重要。
外文摘要：Rainbow trout are highly sensitive to industrially-relevant levels of the feed-borne Fusarium mycotoxin deoxynivalenol (DON), a common contaminant of plant feedstuffs. Feed additives (yeasts, bacteria, enzymes, etc.) are frequently employed as the primary strategy for counteracting the negative effects of mycotoxins on animal performance. However, their application in aquaculture feeds is still largely speculative. A 12-week growth trial with rainbow trout (initial average body weight = 1.8 g/fish) was carried out to assess the efficacy of a commercially available feed additive purportedly effective for preventing the adverse effects of DON. Fish were reared at 16.4 °C and fed a total of eight diets containing graded levels of DON (0.3, 1.0, 1.5 and 2.0 ppm) from naturally contaminated corn with or without the commercial feed additive (CFA). Highly significant linear decreases in weight gain (P 0.05) for any of the aforementioned parameters indicating that inclusion of the CFA in the diets at the recommended dosage did not alleviate the adverse effects of DON on growth performance and nutrient utilization of rainbow trout. The feed additive used here was developed through extensive research and development with homeotherms; therefore, use in feeds for cold water fish species may be outside the scope of its effectiveness. Additional work is essential to systematically develop novel approaches for mycotoxin mitigation in highly sensitive farmed fish species.
外文关键词：Mycotoxins；Deoxynivalenol；Feed additive；Rainbow trout
作者：Hooft, JM；Bureau, DP
作者单位：Univ Guelph
期刊名称：AQUACULTURE
期刊影响因子：1.893
出版年份：2017
出版刊次：4
点击下载：抗饲料传脱氧雪腐镰刀菌烯醇（DON）负作用的饲料添加剂对红鳟鱼(Oncorhynchus mykiss)性能的功效评估