Use of plant‐based ingredients in aquafeeds, especially for carnivorous species, is likely to increase in view of concerns regaridng the sustainability, price, and availability of fishmeal. As mycotoxins are a common problem associated with the use of plant ingredients, this study was undertaken to evaluate the effect of two levels of fumonisins (168 μg/kg feed and 333 μg/kg) and compared with 0μg/kg (the Control diet) for total growth, whole‐body nutrient retention, liver enzyme activity, and several plasma humoral parameters in juvenile gilthead seabream, Sparus aurata. Results suggest that diets contaminated with fumonisins can be detrimental to the growth performance of seabream. Fumonisin levels as low as 168 μg/kg feed had a significant impact on final body weight, feed conversion ratio, and protein efficiency ratio. Fumonisins also reduced fat and energy retention and disrupted the respiratory burst in circulating leukocytes. Fumonisin levels at 333 μg/kg feed increased these detrimental effects, clearly demonstrating a dose–response relationship. These results highlight the possible need to re‐evaluate the European Commission guidance value for fumonisins (FB₁ + FB₂) in complementary and complete feedstuffs for fish of 10,000 μg/kg, which might be too high for certain species, such as seabream.

中文翻译：

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低水平的伏马菌素污染对金头鲷（Sparus aurata）的影响

考虑到人们对鱼粉的可持续性，价格和可获得性的担忧，在水产饲料中特别是对食肉物种的植物基成分的使用可能会增加。由于霉菌毒素是与使用植物成分相关的常见问题，因此本研究旨在评估两种水平的伏马菌素（168μg/ kg饲料和333μg/ kg饲料）的效果，并与0μg/ kg（对照饮食）进行比较幼体金头鲷，Sparus aurata的总生长，全身营养保留，肝酶活性和一些血浆体液参数。结果表明，受伏马菌素污染的饮食可能对鲷鱼的生长性能有害。伏马菌素含量低至168μg/ kg饲料对最终体重，饲料转化率和蛋白质效率比有显着影响。伏马菌素还减少了脂肪和能量的保留，并破坏了循环白细胞的呼吸爆发。333μg/ kg饲料中伏马菌素的含量增加了这些有害作用，清楚表明了剂量-反应关系。这些结果表明，可能需要重新评估欧盟委员会在10,000μg / kg鱼类的补充和完全饲料中伏马菌素（FB ₁  + FB ₂）的指导值，这对于某些种类的鲷鱼来说可能太高了。